/*  Prototype JavaScript framework, version 1.7_rc2
 *  (c) 2005-2010 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {

  Version: '1.7_rc2',

  Browser: (function(){
    var ua = navigator.userAgent;
    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
    return {
      IE:             !!window.attachEvent && !isOpera,
      Opera:          isOpera,
      WebKit:         ua.indexOf('AppleWebKit/') > -1,
      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
      MobileSafari:   /Apple.*Mobile/.test(ua)
    }
  })(),

  BrowserFeatures: {
    XPath: !!document.evaluate,

    SelectorsAPI: !!document.querySelector,

    ElementExtensions: (function() {
      var constructor = window.Element || window.HTMLElement;
      return !!(constructor && constructor.prototype);
    })(),
    SpecificElementExtensions: (function() {
      if (typeof window.HTMLDivElement !== 'undefined')
        return true;

      var div = document.createElement('div'),
          form = document.createElement('form'),
          isSupported = false;

      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
        isSupported = true;
      }

      div = form = null;

      return isSupported;
    })()
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },

  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


var Abstract = { };


var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

/* Based on Alex Arnell's inheritance implementation. */

var Class = (function() {

  var IS_DONTENUM_BUGGY = (function(){
    for (var p in { toString: 1 }) {
      if (p === 'toString') return false;
    }
    return true;
  })();

  function subclass() {};
  function create() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0, length = properties.length; i < length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;
    return klass;
  }

  function addMethods(source) {
    var ancestor   = this.superclass && this.superclass.prototype,
        properties = Object.keys(source);

    if (IS_DONTENUM_BUGGY) {
      if (source.toString != Object.prototype.toString)
        properties.push("toString");
      if (source.valueOf != Object.prototype.valueOf)
        properties.push("valueOf");
    }

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames()[0] == "$super") {
        var method = value;
        value = (function(m) {
          return function() { return ancestor[m].apply(this, arguments); };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }

  return {
    create: create,
    Methods: {
      addMethods: addMethods
    }
  };
})();
(function() {

  var _toString = Object.prototype.toString,
      NULL_TYPE = 'Null',
      UNDEFINED_TYPE = 'Undefined',
      BOOLEAN_TYPE = 'Boolean',
      NUMBER_TYPE = 'Number',
      STRING_TYPE = 'String',
      OBJECT_TYPE = 'Object',
      BOOLEAN_CLASS = '[object Boolean]',
      NUMBER_CLASS = '[object Number]',
      STRING_CLASS = '[object String]',
      ARRAY_CLASS = '[object Array]',
      NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON &&
        typeof JSON.stringify === 'function' &&
        JSON.stringify(0) === '0' &&
        typeof JSON.stringify(Prototype.K) === 'undefined';

  function Type(o) {
    switch(o) {
      case null: return NULL_TYPE;
      case (void 0): return UNDEFINED_TYPE;
    }
    var type = typeof o;
    switch(type) {
      case 'boolean': return BOOLEAN_TYPE;
      case 'number':  return NUMBER_TYPE;
      case 'string':  return STRING_TYPE;
    }
    return OBJECT_TYPE;
  }

  function extend(destination, source) {
    for (var property in source)
      destination[property] = source[property];
    return destination;
  }

  function inspect(object) {
    try {
      if (isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  }

  function toJSON(value) {
    return Str('', { '': value }, []);
  }

  function Str(key, holder, stack) {
    var value = holder[key],
        type = typeof value;

    if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') {
      value = value.toJSON(key);
    }

    var _class = _toString.call(value);

    switch (_class) {
      case NUMBER_CLASS:
      case BOOLEAN_CLASS:
      case STRING_CLASS:
        value = value.valueOf();
    }

    switch (value) {
      case null: return 'null';
      case true: return 'true';
      case false: return 'false';
    }

    type = typeof value;
    switch (type) {
      case 'string':
        return value.inspect(true);
      case 'number':
        return isFinite(value) ? String(value) : 'null';
      case 'object':

        for (var i = 0, length = stack.length; i < length; i++) {
          if (stack[i] === value) { throw new TypeError(); }
        }
        stack.push(value);

        var partial = [];
        if (_class === ARRAY_CLASS) {
          for (var i = 0, length = value.length; i < length; i++) {
            var str = Str(i, value, stack);
            partial.push(typeof str === 'undefined' ? 'null' : str);
          }
          partial = '[' + partial.join(',') + ']';
        } else {
          var keys = Object.keys(value);
          for (var i = 0, length = keys.length; i < length; i++) {
            var key = keys[i], str = Str(key, value, stack);
            if (typeof str !== "undefined") {
               partial.push(key.inspect(true)+ ':' + str);
             }
          }
          partial = '{' + partial.join(',') + '}';
        }
        stack.pop();
        return partial;
    }
  }

  function stringify(object) {
    return JSON.stringify(object);
  }

  function toQueryString(object) {
    return $H(object).toQueryString();
  }

  function toHTML(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  }

  function keys(object) {
    if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); }
    var results = [];
    for (var property in object) {
      if (object.hasOwnProperty(property)) {
        results.push(property);
      }
    }
    return results;
  }

  function values(object) {
    var results = [];
    for (var property in object)
      results.push(object[property]);
    return results;
  }

  function clone(object) {
    return extend({ }, object);
  }

  function isElement(object) {
    return !!(object && object.nodeType == 1);
  }

  function isArray(object) {
    return _toString.call(object) === ARRAY_CLASS;
  }

  var hasNativeIsArray = (typeof Array.isArray == 'function')
    && Array.isArray([]) && !Array.isArray({});

  if (hasNativeIsArray) {
    isArray = Array.isArray;
  }

  function isHash(object) {
    return object instanceof Hash;
  }

  function isFunction(object) {
    return typeof object === "function";
  }

  function isString(object) {
    return _toString.call(object) === STRING_CLASS;
  }

  function isNumber(object) {
    return _toString.call(object) === NUMBER_CLASS;
  }

  function isUndefined(object) {
    return typeof object === "undefined";
  }

  extend(Object, {
    extend:        extend,
    inspect:       inspect,
    toJSON:        NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
    toQueryString: toQueryString,
    toHTML:        toHTML,
    keys:          Object.keys || keys,
    values:        values,
    clone:         clone,
    isElement:     isElement,
    isArray:       isArray,
    isHash:        isHash,
    isFunction:    isFunction,
    isString:      isString,
    isNumber:      isNumber,
    isUndefined:   isUndefined
  });
})();
Object.extend(Function.prototype, (function() {
  var slice = Array.prototype.slice;

  function update(array, args) {
    var arrayLength = array.length, length = args.length;
    while (length--) array[arrayLength + length] = args[length];
    return array;
  }

  function merge(array, args) {
    array = slice.call(array, 0);
    return update(array, args);
  }

  function argumentNames() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
      .replace(/\s+/g, '').split(',');
    return names.length == 1 && !names[0] ? [] : names;
  }

  function bind(context) {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = slice.call(arguments, 1);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(context, a);
    }
  }

  function bindAsEventListener(context) {
    var __method = this, args = slice.call(arguments, 1);
    return function(event) {
      var a = update([event || window.event], args);
      return __method.apply(context, a);
    }
  }

  function curry() {
    if (!arguments.length) return this;
    var __method = this, args = slice.call(arguments, 0);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(this, a);
    }
  }

  function delay(timeout) {
    var __method = this, args = slice.call(arguments, 1);
    timeout = timeout * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  }

  function defer() {
    var args = update([0.01], arguments);
    return this.delay.apply(this, args);
  }

  function wrap(wrapper) {
    var __method = this;
    return function() {
      var a = update([__method.bind(this)], arguments);
      return wrapper.apply(this, a);
    }
  }

  function methodize() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      var a = update([this], arguments);
      return __method.apply(null, a);
    };
  }

  return {
    argumentNames:       argumentNames,
    bind:                bind,
    bindAsEventListener: bindAsEventListener,
    curry:               curry,
    delay:               delay,
    defer:               defer,
    wrap:                wrap,
    methodize:           methodize
  }
})());



(function(proto) {


  function toISOString() {
    return this.getUTCFullYear() + '-' +
      (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
      this.getUTCDate().toPaddedString(2) + 'T' +
      this.getUTCHours().toPaddedString(2) + ':' +
      this.getUTCMinutes().toPaddedString(2) + ':' +
      this.getUTCSeconds().toPaddedString(2) + 'Z';
  }


  function toJSON() {
    return this.toISOString();
  }

  if (!proto.toISOString) proto.toISOString = toISOString;
  if (!proto.toJSON) proto.toJSON = toJSON;

})(Date.prototype);


RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
        this.currentlyExecuting = false;
      } catch(e) {
        this.currentlyExecuting = false;
        throw e;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, (function() {
  var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
    typeof JSON.parse === 'function' &&
    JSON.parse('{"test": true}').test;

  function prepareReplacement(replacement) {
    if (Object.isFunction(replacement)) return replacement;
    var template = new Template(replacement);
    return function(match) { return template.evaluate(match) };
  }

  function gsub(pattern, replacement) {
    var result = '', source = this, match;
    replacement = prepareReplacement(replacement);

    if (Object.isString(pattern))
      pattern = RegExp.escape(pattern);

    if (!(pattern.length || pattern.source)) {
      replacement = replacement('');
      return replacement + source.split('').join(replacement) + replacement;
    }

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  }

  function sub(pattern, replacement, count) {
    replacement = prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  }

  function scan(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  }

  function truncate(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  }

  function strip() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  }

  function stripTags() {
    return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
  }

  function stripScripts() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  }

  function extractScripts() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img'),
        matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  }

  function evalScripts() {
    return this.extractScripts().map(function(script) { return eval(script) });
  }

  function escapeHTML() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  }

  function unescapeHTML() {
    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
  }


  function toQueryParams(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift()),
            value = pair.length > 1 ? pair.join('=') : pair[0];

        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  }

  function toArray() {
    return this.split('');
  }

  function succ() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  }

  function times(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  }

  function camelize() {
    return this.replace(/-+(.)?/g, function(match, chr) {
      return chr ? chr.toUpperCase() : '';
    });
  }

  function capitalize() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  }

  function underscore() {
    return this.replace(/::/g, '/')
               .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
               .replace(/([a-z\d])([A-Z])/g, '$1_$2')
               .replace(/-/g, '_')
               .toLowerCase();
  }

  function dasherize() {
    return this.replace(/_/g, '-');
  }

  function inspect(useDoubleQuotes) {
    var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
      if (character in String.specialChar) {
        return String.specialChar[character];
      }
      return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }

  function unfilterJSON(filter) {
    return this.replace(filter || Prototype.JSONFilter, '$1');
  }

  function isJSON() {
    var str = this;
    if (str.blank()) return false;
    str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
    str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
    str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
    return (/^[\],:{}\s]*$/).test(str);
  }

  function evalJSON(sanitize) {
    var json = this.unfilterJSON(),
        cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
    if (cx.test(json)) {
      json = json.replace(cx, function (a) {
        return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
      });
    }
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  }

  function parseJSON() {
    var json = this.unfilterJSON();
    return JSON.parse(json);
  }

  function include(pattern) {
    return this.indexOf(pattern) > -1;
  }

  function startsWith(pattern) {
    return this.lastIndexOf(pattern, 0) === 0;
  }

  function endsWith(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.indexOf(pattern, d) === d;
  }

  function empty() {
    return this == '';
  }

  function blank() {
    return /^\s*$/.test(this);
  }

  function interpolate(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }

  return {
    gsub:           gsub,
    sub:            sub,
    scan:           scan,
    truncate:       truncate,
    strip:          String.prototype.trim || strip,
    stripTags:      stripTags,
    stripScripts:   stripScripts,
    extractScripts: extractScripts,
    evalScripts:    evalScripts,
    escapeHTML:     escapeHTML,
    unescapeHTML:   unescapeHTML,
    toQueryParams:  toQueryParams,
    parseQuery:     toQueryParams,
    toArray:        toArray,
    succ:           succ,
    times:          times,
    camelize:       camelize,
    capitalize:     capitalize,
    underscore:     underscore,
    dasherize:      dasherize,
    inspect:        inspect,
    unfilterJSON:   unfilterJSON,
    isJSON:         isJSON,
    evalJSON:       NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
    include:        include,
    startsWith:     startsWith,
    endsWith:       endsWith,
    empty:          empty,
    blank:          blank,
    interpolate:    interpolate
  };
})());

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (object && Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return (match[1] + '');

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3],
          pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;

      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = (function() {
  function each(iterator, context) {
    var index = 0;
    try {
      this._each(function(value) {
        iterator.call(context, value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  }

  function eachSlice(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  }

  function all(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator.call(context, value, index);
      if (!result) throw $break;
    });
    return result;
  }

  function any(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator.call(context, value, index))
        throw $break;
    });
    return result;
  }

  function collect(iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function detect(iterator, context) {
    var result;
    this.each(function(value, index) {
      if (iterator.call(context, value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  }

  function findAll(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function grep(filter, iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(RegExp.escape(filter));

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function include(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  }

  function inGroupsOf(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  }

  function inject(memo, iterator, context) {
    this.each(function(value, index) {
      memo = iterator.call(context, memo, value, index);
    });
    return memo;
  }

  function invoke(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  }

  function max(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  }

  function min(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  }

  function partition(iterator, context) {
    iterator = iterator || Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator.call(context, value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  }

  function pluck(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  }

  function reject(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function sortBy(iterator, context) {
    return this.map(function(value, index) {
      return {
        value: value,
        criteria: iterator.call(context, value, index)
      };
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  }

  function toArray() {
    return this.map();
  }

  function zip() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  }

  function size() {
    return this.toArray().length;
  }

  function inspect() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }









  return {
    each:       each,
    eachSlice:  eachSlice,
    all:        all,
    every:      all,
    any:        any,
    some:       any,
    collect:    collect,
    map:        collect,
    detect:     detect,
    findAll:    findAll,
    select:     findAll,
    filter:     findAll,
    grep:       grep,
    include:    include,
    member:     include,
    inGroupsOf: inGroupsOf,
    inject:     inject,
    invoke:     invoke,
    max:        max,
    min:        min,
    partition:  partition,
    pluck:      pluck,
    reject:     reject,
    sortBy:     sortBy,
    toArray:    toArray,
    entries:    toArray,
    zip:        zip,
    size:       size,
    inspect:    inspect,
    find:       detect
  };
})();

function $A(iterable) {
  if (!iterable) return [];
  if ('toArray' in Object(iterable)) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}


function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

Array.from = $A;


(function() {
  var arrayProto = Array.prototype,
      slice = arrayProto.slice,
      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available

  function each(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  }
  if (!_each) _each = each;

  function clear() {
    this.length = 0;
    return this;
  }

  function first() {
    return this[0];
  }

  function last() {
    return this[this.length - 1];
  }

  function compact() {
    return this.select(function(value) {
      return value != null;
    });
  }

  function flatten() {
    return this.inject([], function(array, value) {
      if (Object.isArray(value))
        return array.concat(value.flatten());
      array.push(value);
      return array;
    });
  }

  function without() {
    var values = slice.call(arguments, 0);
    return this.select(function(value) {
      return !values.include(value);
    });
  }

  function reverse(inline) {
    return (inline === false ? this.toArray() : this)._reverse();
  }

  function uniq(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  }

  function intersect(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  }


  function clone() {
    return slice.call(this, 0);
  }

  function size() {
    return this.length;
  }

  function inspect() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }

  function indexOf(item, i) {
    i || (i = 0);
    var length = this.length;
    if (i < 0) i = length + i;
    for (; i < length; i++)
      if (this[i] === item) return i;
    return -1;
  }

  function lastIndexOf(item, i) {
    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
    var n = this.slice(0, i).reverse().indexOf(item);
    return (n < 0) ? n : i - n - 1;
  }

  function concat() {
    var array = slice.call(this, 0), item;
    for (var i = 0, length = arguments.length; i < length; i++) {
      item = arguments[i];
      if (Object.isArray(item) && !('callee' in item)) {
        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
          array.push(item[j]);
      } else {
        array.push(item);
      }
    }
    return array;
  }

  Object.extend(arrayProto, Enumerable);

  if (!arrayProto._reverse)
    arrayProto._reverse = arrayProto.reverse;

  Object.extend(arrayProto, {
    _each:     _each,
    clear:     clear,
    first:     first,
    last:      last,
    compact:   compact,
    flatten:   flatten,
    without:   without,
    reverse:   reverse,
    uniq:      uniq,
    intersect: intersect,
    clone:     clone,
    toArray:   clone,
    size:      size,
    inspect:   inspect
  });

  var CONCAT_ARGUMENTS_BUGGY = (function() {
    return [].concat(arguments)[0][0] !== 1;
  })(1,2)

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {
  function initialize(object) {
    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
  }


  function _each(iterator) {
    for (var key in this._object) {
      var value = this._object[key], pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  }

  function set(key, value) {
    return this._object[key] = value;
  }

  function get(key) {
    if (this._object[key] !== Object.prototype[key])
      return this._object[key];
  }

  function unset(key) {
    var value = this._object[key];
    delete this._object[key];
    return value;
  }

  function toObject() {
    return Object.clone(this._object);
  }



  function keys() {
    return this.pluck('key');
  }

  function values() {
    return this.pluck('value');
  }

  function index(value) {
    var match = this.detect(function(pair) {
      return pair.value === value;
    });
    return match && match.key;
  }

  function merge(object) {
    return this.clone().update(object);
  }

  function update(object) {
    return new Hash(object).inject(this, function(result, pair) {
      result.set(pair.key, pair.value);
      return result;
    });
  }

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  function toQueryString() {
    return this.inject([], function(results, pair) {
      var key = encodeURIComponent(pair.key), values = pair.value;

      if (values && typeof values == 'object') {
        if (Object.isArray(values))
          return results.concat(values.map(toQueryPair.curry(key)));
      } else results.push(toQueryPair(key, values));
      return results;
    }).join('&');
  }

  function inspect() {
    return '#<Hash:{' + this.map(function(pair) {
      return pair.map(Object.inspect).join(': ');
    }).join(', ') + '}>';
  }

  function clone() {
    return new Hash(this);
  }

  return {
    initialize:             initialize,
    _each:                  _each,
    set:                    set,
    get:                    get,
    unset:                  unset,
    toObject:               toObject,
    toTemplateReplacements: toObject,
    keys:                   keys,
    values:                 values,
    index:                  index,
    merge:                  merge,
    update:                 update,
    toQueryString:          toQueryString,
    inspect:                inspect,
    toJSON:                 toObject,
    clone:                  clone
  };
})());

Hash.from = $H;
Object.extend(Number.prototype, (function() {
  function toColorPart() {
    return this.toPaddedString(2, 16);
  }

  function succ() {
    return this + 1;
  }

  function times(iterator, context) {
    $R(0, this, true).each(iterator, context);
    return this;
  }

  function toPaddedString(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  }

  function abs() {
    return Math.abs(this);
  }

  function round() {
    return Math.round(this);
  }

  function ceil() {
    return Math.ceil(this);
  }

  function floor() {
    return Math.floor(this);
  }

  return {
    toColorPart:    toColorPart,
    succ:           succ,
    times:          times,
    toPaddedString: toPaddedString,
    abs:            abs,
    round:          round,
    ceil:           ceil,
    floor:          floor
  };
})());

function $R(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
}

var ObjectRange = Class.create(Enumerable, (function() {
  function initialize(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  }

  function _each(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  }

  function include(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }

  return {
    initialize: initialize,
    _each:      _each,
    include:    include
  };
})());



var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});
Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});
Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null; }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];








Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if ((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if (readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,

  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});


function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}



(function(global) {

  var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){
    try {
      var el = document.createElement('<input name="x">');
      return el.tagName.toLowerCase() === 'input' && el.name === 'x';
    }
    catch(err) {
      return false;
    }
  })();

  var element = global.Element;

  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };

  Object.extend(global.Element, element || { });
  if (element) global.Element.prototype = element.prototype;

})(this);

Element.idCounter = 1;
Element.cache = { };

function purgeElement(element) {
  var uid = element._prototypeUID;
  if (uid) {
    Element.stopObserving(element);
    element._prototypeUID = void 0;
    delete Element.Storage[uid];
  }
}

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    element = $(element);
    element.style.display = 'none';
    return element;
  },

  show: function(element) {
    element = $(element);
    element.style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: (function(){

    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
      var el = document.createElement("select"),
          isBuggy = true;
      el.innerHTML = "<option value=\"test\">test</option>";
      if (el.options && el.options[0]) {
        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
      }
      el = null;
      return isBuggy;
    })();

    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
      try {
        var el = document.createElement("table");
        if (el && el.tBodies) {
          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
          var isBuggy = typeof el.tBodies[0] == "undefined";
          el = null;
          return isBuggy;
        }
      } catch (e) {
        return true;
      }
    })();

    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
      var s = document.createElement("script"),
          isBuggy = false;
      try {
        s.appendChild(document.createTextNode(""));
        isBuggy = !s.firstChild ||
          s.firstChild && s.firstChild.nodeType !== 3;
      } catch (e) {
        isBuggy = true;
      }
      s = null;
      return isBuggy;
    })();

    function update(element, content) {
      element = $(element);

      var descendants = element.getElementsByTagName('*'),
       i = descendants.length;
      while (i--) purgeElement(descendants[i]);

      if (content && content.toElement)
        content = content.toElement();

      if (Object.isElement(content))
        return element.update().insert(content);

      content = Object.toHTML(content);

      var tagName = element.tagName.toUpperCase();

      if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
        element.text = content;
        return element;
      }

      if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY) {
        if (tagName in Element._insertionTranslations.tags) {
          while (element.firstChild) {
            element.removeChild(element.firstChild);
          }
          Element._getContentFromAnonymousElement(tagName, content.stripScripts())
            .each(function(node) {
              element.appendChild(node)
            });
        }
        else {
          element.innerHTML = content.stripScripts();
        }
      }
      else {
        element.innerHTML = content.stripScripts();
      }

      content.evalScripts.bind(content).defer();
      return element;
    }

    return update;
  })(),

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(),
          attribute = pair.last(),
          value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property, maximumLength) {
    element = $(element);
    maximumLength = maximumLength || -1;
    var elements = [];

    while (element = element[property]) {
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
      if (elements.length == maximumLength)
        break;
    }

    return elements;
  },

  ancestors: function(element) {
    return Element.recursivelyCollect(element, 'parentNode');
  },

  descendants: function(element) {
    return Element.select(element, "*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    var results = [], child = $(element).firstChild;
    while (child) {
      if (child.nodeType === 1) {
        results.push(Element.extend(child));
      }
      child = child.nextSibling;
    }
    return results;
  },

  previousSiblings: function(element, maximumLength) {
    return Element.recursivelyCollect(element, 'previousSibling');
  },

  nextSiblings: function(element) {
    return Element.recursivelyCollect(element, 'nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return Element.previousSiblings(element).reverse()
      .concat(Element.nextSiblings(element));
  },

  match: function(element, selector) {
    element = $(element);
    if (Object.isString(selector))
      return Prototype.Selector.match(element, selector);
    return selector.match(element);
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = Element.ancestors(element);
    return Object.isNumber(expression) ? ancestors[expression] :
      Prototype.Selector.find(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return Element.firstDescendant(element);
    return Object.isNumber(expression) ? Element.descendants(element)[expression] :
      Element.select(element, expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (Object.isNumber(expression)) index = expression, expression = false;
    if (!Object.isNumber(index)) index = 0;

    if (expression) {
      return Prototype.Selector.find(element.previousSiblings(), expression, index);
    } else {
      return element.recursivelyCollect("previousSibling", index + 1)[index];
    }
  },

  next: function(element, expression, index) {
    element = $(element);
    if (Object.isNumber(expression)) index = expression, expression = false;
    if (!Object.isNumber(index)) index = 0;

    if (expression) {
      return Prototype.Selector.find(element.nextSiblings(), expression, index);
    } else {
      var maximumLength = Object.isNumber(index) ? index + 1 : 1;
      return element.recursivelyCollect("nextSibling", index + 1)[index];
    }
  },


  select: function(element) {
    element = $(element);
    var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
    return Prototype.Selector.select(expressions, element);
  },

  adjacent: function(element) {
    element = $(element);
    var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
    return Prototype.Selector.select(expressions, element.parentNode).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = Element.readAttribute(element, 'id');
    if (id) return id;
    do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
    Element.writeAttribute(element, 'id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return Element.getDimensions(element).height;
  },

  getWidth: function(element) {
    return Element.getDimensions(element).width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!Element.hasClassName(element, className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return Element[Element.hasClassName(element, className) ?
      'removeClassName' : 'addClassName'](element, className);
  },

  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) return true;

    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Element.cumulativeOffset(element);
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value || value == 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      if (Prototype.Browser.Opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    if (element.parentNode) {
      do {
        valueT += element.offsetTop  || 0;
        valueL += element.offsetLeft || 0;
        element = element.offsetParent;
      } while (element);
    }
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName.toUpperCase() == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'absolute') return element;

    var offsets = Element.positionedOffset(element),
        top     = offsets[1],
        left    = offsets[0],
        width   = element.clientWidth,
        height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'relative') return element;

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0),
        left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0,
        valueL = 0,
        element = forElement;

    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    source = $(source);
    var p = Element.viewportOffset(source), delta = [0, 0], parent = null;

    element = $(element);

    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = Element.getOffsetParent(element);
      delta = Element.viewportOffset(parent);
    }

    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,

  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          if (!Element.visible(element)) return null;

          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      if (!element.parentNode) return $(document.body);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        if (!element.parentNode) return Element._returnOffset(0, 0);
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = (function(){

    var classProp = 'className',
        forProp = 'for',
        el = document.createElement('div');

    el.setAttribute(classProp, 'x');

    if (el.className !== 'x') {
      el.setAttribute('class', 'x');
      if (el.className === 'x') {
        classProp = 'class';
      }
    }
    el = null;

    el = document.createElement('label');
    el.setAttribute(forProp, 'x');
    if (el.htmlFor !== 'x') {
      el.setAttribute('htmlFor', 'x');
      if (el.htmlFor === 'x') {
        forProp = 'htmlFor';
      }
    }
    el = null;

    return {
      read: {
        names: {
          'class':      classProp,
          'className':  classProp,
          'for':        forProp,
          'htmlFor':    forProp
        },
        values: {
          _getAttr: function(element, attribute) {
            return element.getAttribute(attribute);
          },
          _getAttr2: function(element, attribute) {
            return element.getAttribute(attribute, 2);
          },
          _getAttrNode: function(element, attribute) {
            var node = element.getAttributeNode(attribute);
            return node ? node.value : "";
          },
          _getEv: (function(){

            var el = document.createElement('div'), f;
            el.onclick = Prototype.emptyFunction;
            var value = el.getAttribute('onclick');

            if (String(value).indexOf('{') > -1) {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                attribute = attribute.toString();
                attribute = attribute.split('{')[1];
                attribute = attribute.split('}')[0];
                return attribute.strip();
              };
            }
            else if (value === '') {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                return attribute.strip();
              };
            }
            el = null;
            return f;
          })(),
          _flag: function(element, attribute) {
            return $(element).hasAttribute(attribute) ? attribute : null;
          },
          style: function(element) {
            return element.style.cssText.toLowerCase();
          },
          title: function(element) {
            return element.title;
          }
        }
      }
    }
  })();

  Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr2,
      src:         v._getAttr2,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);

  if (Prototype.BrowserFeatures.ElementExtensions) {
    (function() {
      function _descendants(element) {
        var nodes = element.getElementsByTagName('*'), results = [];
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName !== "!") // Filter out comment nodes.
            results.push(node);
        return results;
      }

      Element.Methods.down = function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return element.firstDescendant();
        return Object.isNumber(expression) ? _descendants(element)[expression] :
          Element.select(element, expression)[index || 0];
      }
    })();
  }

}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if (element.tagName.toUpperCase() == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if ('outerHTML' in document.documentElement) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next(),
          fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'),
      t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    for (var i = t[2]; i--; ) {
      div = div.firstChild;
    }
  }
  else {
    div.innerHTML = html;
  }
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  var tags = Element._insertionTranslations.tags;
  Object.extend(tags, {
    THEAD: tags.TBODY,
    TFOOT: tags.TBODY,
    TH:    tags.TD
  });
})();

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return !!(node && node.specified);
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function(div) {

  if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']) {
    window.HTMLElement = { };
    window.HTMLElement.prototype = div['__proto__'];
    Prototype.BrowserFeatures.ElementExtensions = true;
  }

  div = null;

})(document.createElement('div'));

Element.extend = (function() {

  function checkDeficiency(tagName) {
    if (typeof window.Element != 'undefined') {
      var proto = window.Element.prototype;
      if (proto) {
        var id = '_' + (Math.random()+'').slice(2),
            el = document.createElement(tagName);
        proto[id] = 'x';
        var isBuggy = (el[id] !== 'x');
        delete proto[id];
        el = null;
        return isBuggy;
      }
    }
    return false;
  }

  function extendElementWith(element, methods) {
    for (var property in methods) {
      var value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }
  }

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

  if (Prototype.BrowserFeatures.SpecificElementExtensions) {
    if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY) {
      return function(element) {
        if (element && typeof element._extendedByPrototype == 'undefined') {
          var t = element.tagName;
          if (t && (/^(?:object|applet|embed)$/i.test(t))) {
            extendElementWith(element, Element.Methods);
            extendElementWith(element, Element.Methods.Simulated);
            extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
          }
        }
        return element;
      }
    }
    return Prototype.K;
  }

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || typeof element._extendedByPrototype != 'undefined' ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
        tagName = element.tagName.toUpperCase();

    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    extendElementWith(element, methods);

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

if (document.documentElement.hasAttribute) {
  Element.hasAttribute = function(element, attribute) {
    return element.hasAttribute(attribute);
  };
}
else {
  Element.hasAttribute = Element.Methods.Simulated.hasAttribute;
}

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    var element = document.createElement(tagName),
        proto = element['__proto__'] || element.constructor.prototype;

    element = null;
    return proto;
  }

  var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
   Element.prototype;

  if (F.ElementExtensions) {
    copy(Element.Methods, elementPrototype);
    copy(Element.Methods.Simulated, elementPrototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};


document.viewport = {

  getDimensions: function() {
    return { width: this.getWidth(), height: this.getHeight() };
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
  }
};

(function(viewport) {
  var B = Prototype.Browser, doc = document, element, property = {};

  function getRootElement() {
    if (B.WebKit && !doc.evaluate)
      return document;

    if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
      return document.body;

    return document.documentElement;
  }

  function define(D) {
    if (!element) element = getRootElement();

    property[D] = 'client' + D;

    viewport['get' + D] = function() { return element[property[D]] };
    return viewport['get' + D]();
  }

  viewport.getWidth  = define.curry('Width');

  viewport.getHeight = define.curry('Height');
})(document.viewport);


Element.Storage = {
  UID: 1
};

Element.addMethods({
  getStorage: function(element) {
    if (!(element = $(element))) return;

    var uid;
    if (element === window) {
      uid = 0;
    } else {
      if (typeof element._prototypeUID === "undefined")
        element._prototypeUID = Element.Storage.UID++;
      uid = element._prototypeUID;
    }

    if (!Element.Storage[uid])
      Element.Storage[uid] = $H();

    return Element.Storage[uid];
  },

  store: function(element, key, value) {
    if (!(element = $(element))) return;

    if (arguments.length === 2) {
      Element.getStorage(element).update(key);
    } else {
      Element.getStorage(element).set(key, value);
    }

    return element;
  },

  retrieve: function(element, key, defaultValue) {
    if (!(element = $(element))) return;
    var hash = Element.getStorage(element), value = hash.get(key);

    if (Object.isUndefined(value)) {
      hash.set(key, defaultValue);
      value = defaultValue;
    }

    return value;
  },

  clone: function(element, deep) {
    if (!(element = $(element))) return;
    var clone = element.cloneNode(deep);
    clone._prototypeUID = void 0;
    if (deep) {
      var descendants = Element.select(clone, '*'),
          i = descendants.length;
      while (i--) {
        descendants[i]._prototypeUID = void 0;
      }
    }
    return Element.extend(clone);
  },

  purge: function(element) {
    if (!(element = $(element))) return;
    purgeElement(element);

    var descendants = element.getElementsByTagName('*'),
     i = descendants.length;

    while (i--) purgeElement(descendants[i]);

    return null;
  }
});

(function() {

  function toDecimal(pctString) {
    var match = pctString.match(/^(\d+)%?$/i);
    if (!match) return null;
    return (Number(match[1]) / 100);
  }

  function getPixelValue(value, property) {
    if (Object.isElement(value)) {
      element = value;
      value = element.getStyle(property);
    }
    if (value === null) {
      return null;
    }

    if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)) {
      return window.parseFloat(value);
    }

    if (/\d/.test(value) && element.runtimeStyle) {
      var style = element.style.left, rStyle = element.runtimeStyle.left;
      element.runtimeStyle.left = element.currentStyle.left;
      element.style.left = value || 0;
      value = element.style.pixelLeft;
      element.style.left = style;
      element.runtimeStyle.left = rStyle;

      return value;
    }

    if (value.include('%')) {
      var decimal = toDecimal(value);
      var whole;
      if (property.include('left') || property.include('right') ||
       property.include('width')) {
        whole = $(element.parentNode).measure('width');
      } else if (property.include('top') || property.include('bottom') ||
       property.include('height')) {
        whole = $(element.parentNode).measure('height');
      }

      return whole * decimal;
    }

    return 0;
  }

  function toCSSPixels(number) {
    if (Object.isString(number) && number.endsWith('px')) {
      return number;
    }
    return number + 'px';
  }

  function isDisplayed(element) {
    var originalElement = element;
    while (element && element.parentNode) {
      var display = element.getStyle('display');
      if (display === 'none') {
        return false;
      }
      element = $(element.parentNode);
    }
    return true;
  }

  var hasLayout = Prototype.K;
  if ('currentStyle' in document.documentElement) {
    hasLayout = function(element) {
      if (!element.currentStyle.hasLayout) {
        element.style.zoom = 1;
      }
      return element;
    };
  }

  function cssNameFor(key) {
    if (key.include('border')) key = key + '-width';
    return key.camelize();
  }

  Element.Layout = Class.create(Hash, {
    initialize: function($super, element, preCompute) {
      $super();
      this.element = $(element);

      Element.Layout.PROPERTIES.each( function(property) {
        this._set(property, null);
      }, this);

      if (preCompute) {
        this._preComputing = true;
        this._begin();
        Element.Layout.PROPERTIES.each( this._compute, this );
        this._end();
        this._preComputing = false;
      }
    },

    _set: function(property, value) {
      return Hash.prototype.set.call(this, property, value);
    },

    set: function(property, value) {
      throw "Properties of Element.Layout are read-only.";
    },

    get: function($super, property) {
      var value = $super(property);
      return value === null ? this._compute(property) : value;
    },

    _begin: function() {
      if (this._prepared) return;

      var element = this.element;
      if (isDisplayed(element)) {
        this._prepared = true;
        return;
      }

      var originalStyles = {
        position:   element.style.position   || '',
        width:      element.style.width      || '',
        visibility: element.style.visibility || '',
        display:    element.style.display    || ''
      };

      element.store('prototype_original_styles', originalStyles);

      var position = element.getStyle('position'),
       width = element.getStyle('width');

      element.setStyle({
        position:   'absolute',
        visibility: 'hidden',
        display:    'block'
      });

      var positionedWidth = element.getStyle('width');

      var newWidth;
      if (width && (positionedWidth === width)) {
        newWidth = getPixelValue(width);
      } else if (width && (position === 'absolute' || position === 'fixed')) {
        newWidth = getPixelValue(width);
      } else {
        var parent = element.parentNode, pLayout = $(parent).getLayout();

        newWidth = pLayout.get('width') -
         this.get('margin-left') -
         this.get('border-left') -
         this.get('padding-left') -
         this.get('padding-right') -
         this.get('border-right') -
         this.get('margin-right');
      }

      element.setStyle({ width: newWidth + 'px' });

      this._prepared = true;
    },

    _end: function() {
      var element = this.element;
      var originalStyles = element.retrieve('prototype_original_styles');
      element.store('prototype_original_styles', null);
      element.setStyle(originalStyles);
      this._prepared = false;
    },

    _compute: function(property) {
      var COMPUTATIONS = Element.Layout.COMPUTATIONS;
      if (!(property in COMPUTATIONS)) {
        throw "Property not found.";
      }
      return this._set(property, COMPUTATIONS[property].call(this, this.element));
    },

    toObject: function() {
      var args = $A(arguments);
      var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
       args.join(' ').split(' ');
      var obj = {};
      keys.each( function(key) {
        if (!Element.Layout.PROPERTIES.include(key)) return;
        var value = this.get(key);
        if (value != null) obj[key] = value;
      }, this);
      return obj;
    },

    toHash: function() {
      var obj = this.toObject.apply(this, arguments);
      return new Hash(obj);
    },

    toCSS: function() {
      var args = $A(arguments);
      var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
       args.join(' ').split(' ');
      var css = {};

      keys.each( function(key) {
        if (!Element.Layout.PROPERTIES.include(key)) return;
        if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;

        var value = this.get(key);
        if (value != null) css[cssNameFor(key)] = value + 'px';
      }, this);
      return css;
    },

    inspect: function() {
      return "#<Element.Layout>";
    }
  });

  Object.extend(Element.Layout, {
    PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),

    COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),

    COMPUTATIONS: {
      'height': function(element) {
        if (!this._preComputing) this._begin();

        var bHeight = this.get('border-box-height');
        if (bHeight <= 0) return 0;

        var bTop = this.get('border-top'),
         bBottom = this.get('border-bottom');

        var pTop = this.get('padding-top'),
         pBottom = this.get('padding-bottom');

        if (!this._preComputing) this._end();

        return bHeight - bTop - bBottom - pTop - pBottom;
      },

      'width': function(element) {
        if (!this._preComputing) this._begin();

        var bWidth = this.get('border-box-width');
        if (bWidth <= 0) return 0;

        var bLeft = this.get('border-left'),
         bRight = this.get('border-right');

        var pLeft = this.get('padding-left'),
         pRight = this.get('padding-right');

        if (!this._preComputing) this._end();

        return bWidth - bLeft - bRight - pLeft - pRight;
      },

      'padding-box-height': function(element) {
        var height = this.get('height'),
         pTop = this.get('padding-top'),
         pBottom = this.get('padding-bottom');

        return height + pTop + pBottom;
      },

      'padding-box-width': function(element) {
        var width = this.get('width'),
         pLeft = this.get('padding-left'),
         pRight = this.get('padding-right');

        return width + pLeft + pRight;
      },

      'border-box-height': function(element) {
        return element.offsetHeight;
      },

      'border-box-width': function(element) {
        return element.offsetWidth;
      },

      'margin-box-height': function(element) {
        var bHeight = this.get('border-box-height'),
         mTop = this.get('margin-top'),
         mBottom = this.get('margin-bottom');

        if (bHeight <= 0) return 0;

        return bHeight + mTop + mBottom;
      },

      'margin-box-width': function(element) {
        var bWidth = this.get('border-box-width'),
         mLeft = this.get('margin-left'),
         mRight = this.get('margin-right');

        if (bWidth <= 0) return 0;

        return bWidth + mLeft + mRight;
      },

      'top': function(element) {
        var offset = element.positionedOffset();
        return offset.top;
      },

      'bottom': function(element) {
        var offset = element.positionedOffset(),
         parent = element.getOffsetParent(),
         pHeight = parent.measure('height');

        var mHeight = this.get('border-box-height');

        return pHeight - mHeight - offset.top;
      },

      'left': function(element) {
        var offset = element.positionedOffset();
        return offset.left;
      },

      'right': function(element) {
        var offset = element.positionedOffset(),
         parent = element.getOffsetParent(),
         pWidth = parent.measure('width');

        var mWidth = this.get('border-box-width');

        return pWidth - mWidth - offset.left;
      },

      'padding-top': function(element) {
        return getPixelValue(element, 'paddingTop');
      },

      'padding-bottom': function(element) {
        return getPixelValue(element, 'paddingBottom');
      },

      'padding-left': function(element) {
        return getPixelValue(element, 'paddingLeft');
      },

      'padding-right': function(element) {
        return getPixelValue(element, 'paddingRight');
      },

      'border-top': function(element) {
        return Object.isNumber(element.clientTop) ? element.clientTop :
         getPixelValue(element, 'borderTopWidth');
      },

      'border-bottom': function(element) {
        return Object.isNumber(element.clientBottom) ? element.clientBottom :
         getPixelValue(element, 'borderBottomWidth');
      },

      'border-left': function(element) {
        return Object.isNumber(element.clientLeft) ? element.clientLeft :
         getPixelValue(element, 'borderLeftWidth');
      },

      'border-right': function(element) {
        return Object.isNumber(element.clientRight) ? element.clientRight :
         getPixelValue(element, 'borderRightWidth');
      },

      'margin-top': function(element) {
        return getPixelValue(element, 'marginTop');
      },

      'margin-bottom': function(element) {
        return getPixelValue(element, 'marginBottom');
      },

      'margin-left': function(element) {
        return getPixelValue(element, 'marginLeft');
      },

      'margin-right': function(element) {
        return getPixelValue(element, 'marginRight');
      }
    }
  });

  if ('getBoundingClientRect' in document.documentElement) {
    Object.extend(Element.Layout.COMPUTATIONS, {
      'right': function(element) {
        var parent = hasLayout(element.getOffsetParent());
        var rect = element.getBoundingClientRect(),
         pRect = parent.getBoundingClientRect();

        return (pRect.right - rect.right).round();
      },

      'bottom': function(element) {
        var parent = hasLayout(element.getOffsetParent());
        var rect = element.getBoundingClientRect(),
         pRect = parent.getBoundingClientRect();

        return (pRect.bottom - rect.bottom).round();
      }
    });
  }

  Element.Offset = Class.create({
    initialize: function(left, top) {
      this.left = left.round();
      this.top  = top.round();

      this[0] = this.left;
      this[1] = this.top;
    },

    relativeTo: function(offset) {
      return new Element.Offset(
        this.left - offset.left,
        this.top  - offset.top
      );
    },

    inspect: function() {
      return "#<Element.Offset left: #{left} top: #{top}>".interpolate(this);
    },

    toString: function() {
      return "[#{left}, #{top}]".interpolate(this);
    },

    toArray: function() {
      return [this.left, this.top];
    }
  });

  function getLayout(element, preCompute) {
    return new Element.Layout(element, preCompute);
  }

  function measure(element, property) {
    return $(element).getLayout().get(property);
  }

  function getDimensions(element) {
    var layout = $(element).getLayout();
    return {
      width:  layout.get('width'),
      height: layout.get('height')
    };
  }

  function getOffsetParent(element) {
    if (isDetached(element)) return $(document.body);

    var isInline = (Element.getStyle(element, 'display') === 'inline');
    if (!isInline && element.offsetParent) return $(element.offsetParent);
    if (element === document.body) return $(element);

    while ((element = element.parentNode) && element !== document.body) {
      if (Element.getStyle(element, 'position') !== 'static') {
        return (element.nodeName === 'HTML') ? $(document.body) : $(element);
      }
    }

    return $(document.body);
  }


  function cumulativeOffset(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return new Element.Offset(valueL, valueT);
  }

  function positionedOffset(element) {
    var layout = element.getLayout();

    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (isBody(element)) break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);

    valueL -= layout.get('margin-top');
    valueT -= layout.get('margin-left');

    return new Element.Offset(valueL, valueT);
  }

  function cumulativeScrollOffset(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return new Element.Offset(valueL, valueT);
  }

  function viewportOffset(forElement) {
    var valueT = 0, valueL = 0, docBody = document.body;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == docBody &&
        Element.getStyle(element, 'position') == 'absolute') break;
    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (element != docBody) {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);
    return new Element.Offset(valueL, valueT);
  }

  function absolutize(element) {
    element = $(element);

    if (Element.getStyle(element, 'position') === 'absolute') {
      return element;
    }

    var offsetParent = getOffsetParent(element);
    var eOffset = element.viewportOffset(),
     pOffset = offsetParent.viewportOffset();

    var offset = eOffset.relativeTo(pOffset);
    var layout = element.getLayout();

    element.store('prototype_absolutize_original_styles', {
      left:   element.getStyle('left'),
      top:    element.getStyle('top'),
      width:  element.getStyle('width'),
      height: element.getStyle('height')
    });

    element.setStyle({
      position: 'absolute',
      top:    offset.top + 'px',
      left:   offset.left + 'px',
      width:  layout.get('width') + 'px',
      height: layout.get('height') + 'px'
    });

    return element;
  }

  function relativize(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') === 'relative') {
      return element;
    }

    var originalStyles =
     element.retrieve('prototype_absolutize_original_styles');

    if (originalStyles) element.setStyle(originalStyles);
    return element;
  }

  Element.addMethods({
    getLayout:              getLayout,
    measure:                measure,
    getDimensions:          getDimensions,
    getOffsetParent:        getOffsetParent,
    cumulativeOffset:       cumulativeOffset,
    positionedOffset:       positionedOffset,
    cumulativeScrollOffset: cumulativeScrollOffset,
    viewportOffset:         viewportOffset,
    absolutize:             absolutize,
    relativize:             relativize
  });

  function isBody(element) {
    return element.nodeName.toUpperCase() === 'BODY';
  }

  function isDetached(element) {
    return element !== document.body &&
     !Element.descendantOf(element, document.body);
  }

  if ('getBoundingClientRect' in document.documentElement) {
    Element.addMethods({
      viewportOffset: function(element) {
        element = $(element);
        if (isDetached(element)) return new Element.Offset(0, 0);

        var rect  = element.getBoundingClientRect(),
         docEl = document.documentElement;
        return new Element.Offset(rect.left - docEl.clientLeft,
         rect.top - docEl.clientTop);
      },

      positionedOffset: function(element) {
        element = $(element);
        var parent = element.getOffsetParent();
        if (isDetached(element)) return new Element.Offset(0, 0);

        if (element.offsetParent &&
         element.offsetParent.nodeName.toUpperCase() === 'HTML') {
          return positionedOffset(element);
        }

        var eOffset = element.viewportOffset(),
         pOffset = isBody(parent) ? viewportOffset(parent) :
          parent.viewportOffset();
        var retOffset = eOffset.relativeTo(pOffset);

        var layout = element.getLayout();
        var top  = retOffset.top  - layout.get('margin-top');
        var left = retOffset.left - layout.get('margin-left');

        return new Element.Offset(left, top);
      }
    });
  }
})();
window.$$ = function() {
  var expression = $A(arguments).join(', ');
  return Prototype.Selector.select(expression, document);
};

Prototype.Selector = (function() {

  function select() {
    throw new Error('Method "Prototype.Selector.select" must be defined.');
  }

  function match() {
    throw new Error('Method "Prototype.Selector.match" must be defined.');
  }

  function find(elements, expression, index) {
    index = index || 0;
    var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i;

    for (i = 0; i < length; i++) {
      if (match(elements[i], expression) && index == matchIndex++) {
        return Element.extend(elements[i]);
      }
    }
  }

  function extendElements(elements) {
    for (var i = 0, length = elements.length; i < length; i++) {
      Element.extend(elements[i]);
    }
    return elements;
  }


  var K = Prototype.K;

  return {
    select: select,
    match: match,
    find: find,
    extendElements: (Element.extend === K) ? K : extendElements,
    extendElement: Element.extend
  };
})();
Prototype._original_property = window.Sizzle;
/*!
 * Sizzle CSS Selector Engine - v1.0
 *  Copyright 2009, The Dojo Foundation
 *  Released under the MIT, BSD, and GPL Licenses.
 *  More information: http://sizzlejs.com/
 */
(function(){

var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
	done = 0,
	toString = Object.prototype.toString,
	hasDuplicate = false,
	baseHasDuplicate = true;

[0, 0].sort(function(){
	baseHasDuplicate = false;
	return 0;
});

var Sizzle = function(selector, context, results, seed) {
	results = results || [];
	var origContext = context = context || document;

	if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
		return [];
	}

	if ( !selector || typeof selector !== "string" ) {
		return results;
	}

	var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context),
		soFar = selector;

	while ( (chunker.exec(""), m = chunker.exec(soFar)) !== null ) {
		soFar = m[3];

		parts.push( m[1] );

		if ( m[2] ) {
			extra = m[3];
			break;
		}
	}

	if ( parts.length > 1 && origPOS.exec( selector ) ) {
		if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
			set = posProcess( parts[0] + parts[1], context );
		} else {
			set = Expr.relative[ parts[0] ] ?
				[ context ] :
				Sizzle( parts.shift(), context );

			while ( parts.length ) {
				selector = parts.shift();

				if ( Expr.relative[ selector ] )
					selector += parts.shift();

				set = posProcess( selector, set );
			}
		}
	} else {
		if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
				Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
			var ret = Sizzle.find( parts.shift(), context, contextXML );
			context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
		}

		if ( context ) {
			var ret = seed ?
				{ expr: parts.pop(), set: makeArray(seed) } :
				Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
			set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;

			if ( parts.length > 0 ) {
				checkSet = makeArray(set);
			} else {
				prune = false;
			}

			while ( parts.length ) {
				var cur = parts.pop(), pop = cur;

				if ( !Expr.relative[ cur ] ) {
					cur = "";
				} else {
					pop = parts.pop();
				}

				if ( pop == null ) {
					pop = context;
				}

				Expr.relative[ cur ]( checkSet, pop, contextXML );
			}
		} else {
			checkSet = parts = [];
		}
	}

	if ( !checkSet ) {
		checkSet = set;
	}

	if ( !checkSet ) {
		throw "Syntax error, unrecognized expression: " + (cur || selector);
	}

	if ( toString.call(checkSet) === "[object Array]" ) {
		if ( !prune ) {
			results.push.apply( results, checkSet );
		} else if ( context && context.nodeType === 1 ) {
			for ( var i = 0; checkSet[i] != null; i++ ) {
				if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
					results.push( set[i] );
				}
			}
		} else {
			for ( var i = 0; checkSet[i] != null; i++ ) {
				if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
					results.push( set[i] );
				}
			}
		}
	} else {
		makeArray( checkSet, results );
	}

	if ( extra ) {
		Sizzle( extra, origContext, results, seed );
		Sizzle.uniqueSort( results );
	}

	return results;
};

Sizzle.uniqueSort = function(results){
	if ( sortOrder ) {
		hasDuplicate = baseHasDuplicate;
		results.sort(sortOrder);

		if ( hasDuplicate ) {
			for ( var i = 1; i < results.length; i++ ) {
				if ( results[i] === results[i-1] ) {
					results.splice(i--, 1);
				}
			}
		}
	}

	return results;
};

Sizzle.matches = function(expr, set){
	return Sizzle(expr, null, null, set);
};

Sizzle.find = function(expr, context, isXML){
	var set, match;

	if ( !expr ) {
		return [];
	}

	for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
		var type = Expr.order[i], match;

		if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
			var left = match[1];
			match.splice(1,1);

			if ( left.substr( left.length - 1 ) !== "\\" ) {
				match[1] = (match[1] || "").replace(/\\/g, "");
				set = Expr.find[ type ]( match, context, isXML );
				if ( set != null ) {
					expr = expr.replace( Expr.match[ type ], "" );
					break;
				}
			}
		}
	}

	if ( !set ) {
		set = context.getElementsByTagName("*");
	}

	return {set: set, expr: expr};
};

Sizzle.filter = function(expr, set, inplace, not){
	var old = expr, result = [], curLoop = set, match, anyFound,
		isXMLFilter = set && set[0] && isXML(set[0]);

	while ( expr && set.length ) {
		for ( var type in Expr.filter ) {
			if ( (match = Expr.match[ type ].exec( expr )) != null ) {
				var filter = Expr.filter[ type ], found, item;
				anyFound = false;

				if ( curLoop == result ) {
					result = [];
				}

				if ( Expr.preFilter[ type ] ) {
					match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );

					if ( !match ) {
						anyFound = found = true;
					} else if ( match === true ) {
						continue;
					}
				}

				if ( match ) {
					for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
						if ( item ) {
							found = filter( item, match, i, curLoop );
							var pass = not ^ !!found;

							if ( inplace && found != null ) {
								if ( pass ) {
									anyFound = true;
								} else {
									curLoop[i] = false;
								}
							} else if ( pass ) {
								result.push( item );
								anyFound = true;
							}
						}
					}
				}

				if ( found !== undefined ) {
					if ( !inplace ) {
						curLoop = result;
					}

					expr = expr.replace( Expr.match[ type ], "" );

					if ( !anyFound ) {
						return [];
					}

					break;
				}
			}
		}

		if ( expr == old ) {
			if ( anyFound == null ) {
				throw "Syntax error, unrecognized expression: " + expr;
			} else {
				break;
			}
		}

		old = expr;
	}

	return curLoop;
};

var Expr = Sizzle.selectors = {
	order: [ "ID", "NAME", "TAG" ],
	match: {
		ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
		CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
		NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
		ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
		TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
		CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
		POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
		PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
	},
	leftMatch: {},
	attrMap: {
		"class": "className",
		"for": "htmlFor"
	},
	attrHandle: {
		href: function(elem){
			return elem.getAttribute("href");
		}
	},
	relative: {
		"+": function(checkSet, part, isXML){
			var isPartStr = typeof part === "string",
				isTag = isPartStr && !/\W/.test(part),
				isPartStrNotTag = isPartStr && !isTag;

			if ( isTag && !isXML ) {
				part = part.toUpperCase();
			}

			for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
				if ( (elem = checkSet[i]) ) {
					while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}

					checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
						elem || false :
						elem === part;
				}
			}

			if ( isPartStrNotTag ) {
				Sizzle.filter( part, checkSet, true );
			}
		},
		">": function(checkSet, part, isXML){
			var isPartStr = typeof part === "string";

			if ( isPartStr && !/\W/.test(part) ) {
				part = isXML ? part : part.toUpperCase();

				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
					var elem = checkSet[i];
					if ( elem ) {
						var parent = elem.parentNode;
						checkSet[i] = parent.nodeName === part ? parent : false;
					}
				}
			} else {
				for ( var i = 0, l = checkSet.length; i < l; i++ ) {
					var elem = checkSet[i];
					if ( elem ) {
						checkSet[i] = isPartStr ?
							elem.parentNode :
							elem.parentNode === part;
					}
				}

				if ( isPartStr ) {
					Sizzle.filter( part, checkSet, true );
				}
			}
		},
		"": function(checkSet, part, isXML){
			var doneName = done++, checkFn = dirCheck;

			if ( !/\W/.test(part) ) {
				var nodeCheck = part = isXML ? part : part.toUpperCase();
				checkFn = dirNodeCheck;
			}

			checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
		},
		"~": function(checkSet, part, isXML){
			var doneName = done++, checkFn = dirCheck;

			if ( typeof part === "string" && !/\W/.test(part) ) {
				var nodeCheck = part = isXML ? part : part.toUpperCase();
				checkFn = dirNodeCheck;
			}

			checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
		}
	},
	find: {
		ID: function(match, context, isXML){
			if ( typeof context.getElementById !== "undefined" && !isXML ) {
				var m = context.getElementById(match[1]);
				return m ? [m] : [];
			}
		},
		NAME: function(match, context, isXML){
			if ( typeof context.getElementsByName !== "undefined" ) {
				var ret = [], results = context.getElementsByName(match[1]);

				for ( var i = 0, l = results.length; i < l; i++ ) {
					if ( results[i].getAttribute("name") === match[1] ) {
						ret.push( results[i] );
					}
				}

				return ret.length === 0 ? null : ret;
			}
		},
		TAG: function(match, context){
			return context.getElementsByTagName(match[1]);
		}
	},
	preFilter: {
		CLASS: function(match, curLoop, inplace, result, not, isXML){
			match = " " + match[1].replace(/\\/g, "") + " ";

			if ( isXML ) {
				return match;
			}

			for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
				if ( elem ) {
					if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
						if ( !inplace )
							result.push( elem );
					} else if ( inplace ) {
						curLoop[i] = false;
					}
				}
			}

			return false;
		},
		ID: function(match){
			return match[1].replace(/\\/g, "");
		},
		TAG: function(match, curLoop){
			for ( var i = 0; curLoop[i] === false; i++ ){}
			return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
		},
		CHILD: function(match){
			if ( match[1] == "nth" ) {
				var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
					match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
					!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);

				match[2] = (test[1] + (test[2] || 1)) - 0;
				match[3] = test[3] - 0;
			}

			match[0] = done++;

			return match;
		},
		ATTR: function(match, curLoop, inplace, result, not, isXML){
			var name = match[1].replace(/\\/g, "");

			if ( !isXML && Expr.attrMap[name] ) {
				match[1] = Expr.attrMap[name];
			}

			if ( match[2] === "~=" ) {
				match[4] = " " + match[4] + " ";
			}

			return match;
		},
		PSEUDO: function(match, curLoop, inplace, result, not){
			if ( match[1] === "not" ) {
				if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
					match[3] = Sizzle(match[3], null, null, curLoop);
				} else {
					var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
					if ( !inplace ) {
						result.push.apply( result, ret );
					}
					return false;
				}
			} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
				return true;
			}

			return match;
		},
		POS: function(match){
			match.unshift( true );
			return match;
		}
	},
	filters: {
		enabled: function(elem){
			return elem.disabled === false && elem.type !== "hidden";
		},
		disabled: function(elem){
			return elem.disabled === true;
		},
		checked: function(elem){
			return elem.checked === true;
		},
		selected: function(elem){
			elem.parentNode.selectedIndex;
			return elem.selected === true;
		},
		parent: function(elem){
			return !!elem.firstChild;
		},
		empty: function(elem){
			return !elem.firstChild;
		},
		has: function(elem, i, match){
			return !!Sizzle( match[3], elem ).length;
		},
		header: function(elem){
			return /h\d/i.test( elem.nodeName );
		},
		text: function(elem){
			return "text" === elem.type;
		},
		radio: function(elem){
			return "radio" === elem.type;
		},
		checkbox: function(elem){
			return "checkbox" === elem.type;
		},
		file: function(elem){
			return "file" === elem.type;
		},
		password: function(elem){
			return "password" === elem.type;
		},
		submit: function(elem){
			return "submit" === elem.type;
		},
		image: function(elem){
			return "image" === elem.type;
		},
		reset: function(elem){
			return "reset" === elem.type;
		},
		button: function(elem){
			return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
		},
		input: function(elem){
			return /input|select|textarea|button/i.test(elem.nodeName);
		}
	},
	setFilters: {
		first: function(elem, i){
			return i === 0;
		},
		last: function(elem, i, match, array){
			return i === array.length - 1;
		},
		even: function(elem, i){
			return i % 2 === 0;
		},
		odd: function(elem, i){
			return i % 2 === 1;
		},
		lt: function(elem, i, match){
			return i < match[3] - 0;
		},
		gt: function(elem, i, match){
			return i > match[3] - 0;
		},
		nth: function(elem, i, match){
			return match[3] - 0 == i;
		},
		eq: function(elem, i, match){
			return match[3] - 0 == i;
		}
	},
	filter: {
		PSEUDO: function(elem, match, i, array){
			var name = match[1], filter = Expr.filters[ name ];

			if ( filter ) {
				return filter( elem, i, match, array );
			} else if ( name === "contains" ) {
				return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
			} else if ( name === "not" ) {
				var not = match[3];

				for ( var i = 0, l = not.length; i < l; i++ ) {
					if ( not[i] === elem ) {
						return false;
					}
				}

				return true;
			}
		},
		CHILD: function(elem, match){
			var type = match[1], node = elem;
			switch (type) {
				case 'only':
				case 'first':
					while ( (node = node.previousSibling) )  {
						if ( node.nodeType === 1 ) return false;
					}
					if ( type == 'first') return true;
					node = elem;
				case 'last':
					while ( (node = node.nextSibling) )  {
						if ( node.nodeType === 1 ) return false;
					}
					return true;
				case 'nth':
					var first = match[2], last = match[3];

					if ( first == 1 && last == 0 ) {
						return true;
					}

					var doneName = match[0],
						parent = elem.parentNode;

					if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
						var count = 0;
						for ( node = parent.firstChild; node; node = node.nextSibling ) {
							if ( node.nodeType === 1 ) {
								node.nodeIndex = ++count;
							}
						}
						parent.sizcache = doneName;
					}

					var diff = elem.nodeIndex - last;
					if ( first == 0 ) {
						return diff == 0;
					} else {
						return ( diff % first == 0 && diff / first >= 0 );
					}
			}
		},
		ID: function(elem, match){
			return elem.nodeType === 1 && elem.getAttribute("id") === match;
		},
		TAG: function(elem, match){
			return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
		},
		CLASS: function(elem, match){
			return (" " + (elem.className || elem.getAttribute("class")) + " ")
				.indexOf( match ) > -1;
		},
		ATTR: function(elem, match){
			var name = match[1],
				result = Expr.attrHandle[ name ] ?
					Expr.attrHandle[ name ]( elem ) :
					elem[ name ] != null ?
						elem[ name ] :
						elem.getAttribute( name ),
				value = result + "",
				type = match[2],
				check = match[4];

			return result == null ?
				type === "!=" :
				type === "=" ?
				value === check :
				type === "*=" ?
				value.indexOf(check) >= 0 :
				type === "~=" ?
				(" " + value + " ").indexOf(check) >= 0 :
				!check ?
				value && result !== false :
				type === "!=" ?
				value != check :
				type === "^=" ?
				value.indexOf(check) === 0 :
				type === "$=" ?
				value.substr(value.length - check.length) === check :
				type === "|=" ?
				value === check || value.substr(0, check.length + 1) === check + "-" :
				false;
		},
		POS: function(elem, match, i, array){
			var name = match[2], filter = Expr.setFilters[ name ];

			if ( filter ) {
				return filter( elem, i, match, array );
			}
		}
	}
};

var origPOS = Expr.match.POS;

for ( var type in Expr.match ) {
	Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
	Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source );
}

var makeArray = function(array, results) {
	array = Array.prototype.slice.call( array, 0 );

	if ( results ) {
		results.push.apply( results, array );
		return results;
	}

	return array;
};

try {
	Array.prototype.slice.call( document.documentElement.childNodes, 0 );

} catch(e){
	makeArray = function(array, results) {
		var ret = results || [];

		if ( toString.call(array) === "[object Array]" ) {
			Array.prototype.push.apply( ret, array );
		} else {
			if ( typeof array.length === "number" ) {
				for ( var i = 0, l = array.length; i < l; i++ ) {
					ret.push( array[i] );
				}
			} else {
				for ( var i = 0; array[i]; i++ ) {
					ret.push( array[i] );
				}
			}
		}

		return ret;
	};
}

var sortOrder;

if ( document.documentElement.compareDocumentPosition ) {
	sortOrder = function( a, b ) {
		if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
} else if ( "sourceIndex" in document.documentElement ) {
	sortOrder = function( a, b ) {
		if ( !a.sourceIndex || !b.sourceIndex ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var ret = a.sourceIndex - b.sourceIndex;
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
} else if ( document.createRange ) {
	sortOrder = function( a, b ) {
		if ( !a.ownerDocument || !b.ownerDocument ) {
			if ( a == b ) {
				hasDuplicate = true;
			}
			return 0;
		}

		var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
		aRange.setStart(a, 0);
		aRange.setEnd(a, 0);
		bRange.setStart(b, 0);
		bRange.setEnd(b, 0);
		var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
		if ( ret === 0 ) {
			hasDuplicate = true;
		}
		return ret;
	};
}

(function(){
	var form = document.createElement("div"),
		id = "script" + (new Date).getTime();
	form.innerHTML = "<a name='" + id + "'/>";

	var root = document.documentElement;
	root.insertBefore( form, root.firstChild );

	if ( !!document.getElementById( id ) ) {
		Expr.find.ID = function(match, context, isXML){
			if ( typeof context.getElementById !== "undefined" && !isXML ) {
				var m = context.getElementById(match[1]);
				return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
			}
		};

		Expr.filter.ID = function(elem, match){
			var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
			return elem.nodeType === 1 && node && node.nodeValue === match;
		};
	}

	root.removeChild( form );
	root = form = null; // release memory in IE
})();

(function(){

	var div = document.createElement("div");
	div.appendChild( document.createComment("") );

	if ( div.getElementsByTagName("*").length > 0 ) {
		Expr.find.TAG = function(match, context){
			var results = context.getElementsByTagName(match[1]);

			if ( match[1] === "*" ) {
				var tmp = [];

				for ( var i = 0; results[i]; i++ ) {
					if ( results[i].nodeType === 1 ) {
						tmp.push( results[i] );
					}
				}

				results = tmp;
			}

			return results;
		};
	}

	div.innerHTML = "<a href='#'></a>";
	if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
			div.firstChild.getAttribute("href") !== "#" ) {
		Expr.attrHandle.href = function(elem){
			return elem.getAttribute("href", 2);
		};
	}

	div = null; // release memory in IE
})();

if ( document.querySelectorAll ) (function(){
	var oldSizzle = Sizzle, div = document.createElement("div");
	div.innerHTML = "<p class='TEST'></p>";

	if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
		return;
	}

	Sizzle = function(query, context, extra, seed){
		context = context || document;

		if ( !seed && context.nodeType === 9 && !isXML(context) ) {
			try {
				return makeArray( context.querySelectorAll(query), extra );
			} catch(e){}
		}

		return oldSizzle(query, context, extra, seed);
	};

	for ( var prop in oldSizzle ) {
		Sizzle[ prop ] = oldSizzle[ prop ];
	}

	div = null; // release memory in IE
})();

if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
	var div = document.createElement("div");
	div.innerHTML = "<div class='test e'></div><div class='test'></div>";

	if ( div.getElementsByClassName("e").length === 0 )
		return;

	div.lastChild.className = "e";

	if ( div.getElementsByClassName("e").length === 1 )
		return;

	Expr.order.splice(1, 0, "CLASS");
	Expr.find.CLASS = function(match, context, isXML) {
		if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
			return context.getElementsByClassName(match[1]);
		}
	};

	div = null; // release memory in IE
})();

function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	var sibDir = dir == "previousSibling" && !isXML;
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];
		if ( elem ) {
			if ( sibDir && elem.nodeType === 1 ){
				elem.sizcache = doneName;
				elem.sizset = i;
			}
			elem = elem[dir];
			var match = false;

			while ( elem ) {
				if ( elem.sizcache === doneName ) {
					match = checkSet[elem.sizset];
					break;
				}

				if ( elem.nodeType === 1 && !isXML ){
					elem.sizcache = doneName;
					elem.sizset = i;
				}

				if ( elem.nodeName === cur ) {
					match = elem;
					break;
				}

				elem = elem[dir];
			}

			checkSet[i] = match;
		}
	}
}

function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
	var sibDir = dir == "previousSibling" && !isXML;
	for ( var i = 0, l = checkSet.length; i < l; i++ ) {
		var elem = checkSet[i];
		if ( elem ) {
			if ( sibDir && elem.nodeType === 1 ) {
				elem.sizcache = doneName;
				elem.sizset = i;
			}
			elem = elem[dir];
			var match = false;

			while ( elem ) {
				if ( elem.sizcache === doneName ) {
					match = checkSet[elem.sizset];
					break;
				}

				if ( elem.nodeType === 1 ) {
					if ( !isXML ) {
						elem.sizcache = doneName;
						elem.sizset = i;
					}
					if ( typeof cur !== "string" ) {
						if ( elem === cur ) {
							match = true;
							break;
						}

					} else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
						match = elem;
						break;
					}
				}

				elem = elem[dir];
			}

			checkSet[i] = match;
		}
	}
}

var contains = document.compareDocumentPosition ?  function(a, b){
	return a.compareDocumentPosition(b) & 16;
} : function(a, b){
	return a !== b && (a.contains ? a.contains(b) : true);
};

var isXML = function(elem){
	return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
		!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
};

var posProcess = function(selector, context){
	var tmpSet = [], later = "", match,
		root = context.nodeType ? [context] : context;

	while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
		later += match[0];
		selector = selector.replace( Expr.match.PSEUDO, "" );
	}

	selector = Expr.relative[selector] ? selector + "*" : selector;

	for ( var i = 0, l = root.length; i < l; i++ ) {
		Sizzle( selector, root[i], tmpSet );
	}

	return Sizzle.filter( later, tmpSet );
};


window.Sizzle = Sizzle;

})();

;(function(engine) {
  var extendElements = Prototype.Selector.extendElements;

  function select(selector, scope) {
    return extendElements(engine(selector, scope || document));
  }

  function match(element, selector) {
    return engine.matches(selector, [element]).length == 1;
  }

  Prototype.Selector.engine = engine;
  Prototype.Selector.select = select;
  Prototype.Selector.match = match;
})(Sizzle);

window.Sizzle = Prototype._original_property;
delete Prototype._original_property;

var Form = {
  reset: function(form) {
    form = $(form);
    form.reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    var elements = $(form).getElementsByTagName('*'),
        element,
        arr = [ ],
        serializers = Form.Element.Serializers;
    for (var i = 0; element = elements[i]; i++) {
      arr.push(element);
    }
    return arr.inject([], function(elements, child) {
      if (serializers[child.tagName.toLowerCase()])
        elements.push(Element.extend(child));
      return elements;
    })
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return /^(?:input|select|textarea)$/i.test(element.tagName);
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/


Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {

  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !(/^(?:button|reset|submit)$/i.test(element.type))))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;

var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, value) {
    if (Object.isUndefined(value))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, currentValue, single = !Object.isArray(value);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        currentValue = this.optionValue(opt);
        if (single) {
          if (currentValue == value) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = value.include(currentValue);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/


Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
(function() {

  var Event = {
    KEY_BACKSPACE: 8,
    KEY_TAB:       9,
    KEY_RETURN:   13,
    KEY_ESC:      27,
    KEY_LEFT:     37,
    KEY_UP:       38,
    KEY_RIGHT:    39,
    KEY_DOWN:     40,
    KEY_DELETE:   46,
    KEY_HOME:     36,
    KEY_END:      35,
    KEY_PAGEUP:   33,
    KEY_PAGEDOWN: 34,
    KEY_INSERT:   45,

    cache: {}
  };

  var docEl = document.documentElement;
  var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
    && 'onmouseleave' in docEl;

  var _isButton;
  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    _isButton = function(event, code) {
      return event.button === buttonMap[code];
    };
  } else if (Prototype.Browser.WebKit) {
    _isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };
  } else {
    _isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  function isLeftClick(event)   { return _isButton(event, 0) }

  function isMiddleClick(event) { return _isButton(event, 1) }

  function isRightClick(event)  { return _isButton(event, 2) }

  function element(event) {
    event = Event.extend(event);

    var node = event.target, type = event.type,
     currentTarget = event.currentTarget;

    if (currentTarget && currentTarget.tagName) {
      if (type === 'load' || type === 'error' ||
        (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
          && currentTarget.type === 'radio'))
            node = currentTarget;
    }

    if (node.nodeType == Node.TEXT_NODE)
      node = node.parentNode;

    return Element.extend(node);
  }

  function findElement(event, expression) {
    var element = Event.element(event);
    if (!expression) return element;
    while (element) {
      if (Object.isElement(element) && Prototype.Selector.match(element, expression)) {
        return Element.extend(element);
      }
      element = element.parentNode;
    }
  }

  function pointer(event) {
    return { x: pointerX(event), y: pointerY(event) };
  }

  function pointerX(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollLeft: 0 };

    return event.pageX || (event.clientX +
      (docElement.scrollLeft || body.scrollLeft) -
      (docElement.clientLeft || 0));
  }

  function pointerY(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollTop: 0 };

    return  event.pageY || (event.clientY +
       (docElement.scrollTop || body.scrollTop) -
       (docElement.clientTop || 0));
  }


  function stop(event) {
    Event.extend(event);
    event.preventDefault();
    event.stopPropagation();

    event.stopped = true;
  }

  Event.Methods = {
    isLeftClick: isLeftClick,
    isMiddleClick: isMiddleClick,
    isRightClick: isRightClick,

    element: element,
    findElement: findElement,

    pointer: pointer,
    pointerX: pointerX,
    pointerY: pointerY,

    stop: stop
  };


  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    function _relatedTarget(event) {
      var element;
      switch (event.type) {
        case 'mouseover': element = event.fromElement; break;
        case 'mouseout':  element = event.toElement;   break;
        default: return null;
      }
      return Element.extend(element);
    }

    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return '[object Event]' }
    });

    Event.extend = function(event, element) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);

      Object.extend(event, {
        target: event.srcElement || element,
        relatedTarget: _relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });

      return Object.extend(event, methods);
    };
  } else {
    Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
    Object.extend(Event.prototype, methods);
    Event.extend = Prototype.K;
  }

  function _createResponder(element, eventName, handler) {
    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) {
      CACHE.push(element);
      registry = Element.retrieve(element, 'prototype_event_registry', $H());
    }

    var respondersForEvent = registry.get(eventName);
    if (Object.isUndefined(respondersForEvent)) {
      respondersForEvent = [];
      registry.set(eventName, respondersForEvent);
    }

    if (respondersForEvent.pluck('handler').include(handler)) return false;

    var responder;
    if (eventName.include(":")) {
      responder = function(event) {
        if (Object.isUndefined(event.eventName))
          return false;

        if (event.eventName !== eventName)
          return false;

        Event.extend(event, element);
        handler.call(element, event);
      };
    } else {
      if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
       (eventName === "mouseenter" || eventName === "mouseleave")) {
        if (eventName === "mouseenter" || eventName === "mouseleave") {
          responder = function(event) {
            Event.extend(event, element);

            var parent = event.relatedTarget;
            while (parent && parent !== element) {
              try { parent = parent.parentNode; }
              catch(e) { parent = element; }
            }

            if (parent === element) return;

            handler.call(element, event);
          };
        }
      } else {
        responder = function(event) {
          Event.extend(event, element);
          handler.call(element, event);
        };
      }
    }

    responder.handler = handler;
    respondersForEvent.push(responder);
    return responder;
  }

  function _destroyCache() {
    for (var i = 0, length = CACHE.length; i < length; i++) {
      Event.stopObserving(CACHE[i]);
      CACHE[i] = null;
    }
  }

  var CACHE = [];

  if (Prototype.Browser.IE)
    window.attachEvent('onunload', _destroyCache);

  if (Prototype.Browser.WebKit)
    window.addEventListener('unload', Prototype.emptyFunction, false);


  var _getDOMEventName = Prototype.K,
      translations = { mouseenter: "mouseover", mouseleave: "mouseout" };

  if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
    _getDOMEventName = function(eventName) {
      return (translations[eventName] || eventName);
    };
  }

  function observe(element, eventName, handler) {
    element = $(element);

    var responder = _createResponder(element, eventName, handler);

    if (!responder) return element;

    if (eventName.include(':')) {
      if (element.addEventListener)
        element.addEventListener("dataavailable", responder, false);
      else {
        element.attachEvent("ondataavailable", responder);
        element.attachEvent("onfilterchange", responder);
      }
    } else {
      var actualEventName = _getDOMEventName(eventName);

      if (element.addEventListener)
        element.addEventListener(actualEventName, responder, false);
      else
        element.attachEvent("on" + actualEventName, responder);
    }

    return element;
  }

  function stopObserving(element, eventName, handler) {
    element = $(element);

    var registry = Element.retrieve(element, 'prototype_event_registry');
    if (!registry) return element;

    if (!eventName) {
      registry.each( function(pair) {
        var eventName = pair.key;
        stopObserving(element, eventName);
      });
      return element;
    }

    var responders = registry.get(eventName);
    if (!responders) return element;

    if (!handler) {
      responders.each(function(r) {
        stopObserving(element, eventName, r.handler);
      });
      return element;
    }

    var responder = responders.find( function(r) { return r.handler === handler; });
    if (!responder) return element;

    if (eventName.include(':')) {
      if (element.removeEventListener)
        element.removeEventListener("dataavailable", responder, false);
      else {
        element.detachEvent("ondataavailable", responder);
        element.detachEvent("onfilterchange",  responder);
      }
    } else {
      var actualEventName = _getDOMEventName(eventName);
      if (element.removeEventListener)
        element.removeEventListener(actualEventName, responder, false);
      else
        element.detachEvent('on' + actualEventName, responder);
    }

    registry.set(eventName, responders.without(responder));

    return element;
  }

  function fire(element, eventName, memo, bubble) {
    element = $(element);

    if (Object.isUndefined(bubble))
      bubble = true;

    if (element == document && document.createEvent && !element.dispatchEvent)
      element = document.documentElement;

    var event;
    if (document.createEvent) {
      event = document.createEvent('HTMLEvents');
      event.initEvent('dataavailable', true, true);
    } else {
      event = document.createEventObject();
      event.eventType = bubble ? 'ondataavailable' : 'onfilterchange';
    }

    event.eventName = eventName;
    event.memo = memo || { };

    if (document.createEvent)
      element.dispatchEvent(event);
    else
      element.fireEvent(event.eventType, event);

    return Event.extend(event);
  }

  Event.Handler = Class.create({
    initialize: function(element, eventName, selector, callback) {
      this.element   = $(element);
      this.eventName = eventName;
      this.selector  = selector;
      this.callback  = callback;
      this.handler   = this.handleEvent.bind(this);
    },

    start: function() {
      Event.observe(this.element, this.eventName, this.handler);
      return this;
    },

    stop: function() {
      Event.stopObserving(this.element, this.eventName, this.handler);
      return this;
    },

    handleEvent: function(event) {
      var element = event.findElement(this.selector);
      if (element) this.callback.call(this.element, event, element);
    }
  });

  function on(element, eventName, selector, callback) {
    element = $(element);
    if (Object.isFunction(selector) && Object.isUndefined(callback)) {
      callback = selector, selector = null;
    }

    return new Event.Handler(element, eventName, selector, callback).start();
  }

  Object.extend(Event, Event.Methods);

  Object.extend(Event, {
    fire:          fire,
    observe:       observe,
    stopObserving: stopObserving,
    on:            on
  });

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving,

    on:            on
  });

  Object.extend(document, {
    fire:          fire.methodize(),

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    on:            on.methodize(),

    loaded:        false
  });

  if (window.Event) Object.extend(window.Event, Event);
  else window.Event = Event;
})();

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearTimeout(timer);
    document.loaded = true;
    document.fire('dom:loaded');
  }

  function checkReadyState() {
    if (document.readyState === 'complete') {
      document.stopObserving('readystatechange', checkReadyState);
      fireContentLoadedEvent();
    }
  }

  function pollDoScroll() {
    try { document.documentElement.doScroll('left'); }
    catch(e) {
      timer = pollDoScroll.defer();
      return;
    }
    fireContentLoadedEvent();
  }

  if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
  } else {
    document.observe('readystatechange', checkReadyState);
    if (window == top)
      timer = pollDoScroll.defer();
  }

  Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

(function() {
  window.Selector = Class.create({
    initialize: function(expression) {
      this.expression = expression.strip();
    },

    findElements: function(rootElement) {
      return Prototype.Selector.select(this.expression, rootElement);
    },

    match: function(element) {
      return Prototype.Selector.match(element, this.expression);
    },

    toString: function() {
      return this.expression;
    },

    inspect: function() {
      return "#<Selector: " + this.expression + ">";
    }
  });

  Object.extend(Selector, {
    matchElements: function(elements, expression) {
      var match = Prototype.Selector.match,
          results = [];

      for (var i = 0, length = elements.length; i < length; i++) {
        var element = elements[i];
        if (match(element, expression)) {
          results.push(Element.extend(element));
        }
      }
      return results;
    },

    findElement: function(elements, expression, index) {
      index = index || 0;
      var matchIndex = 0, element;
      for (var i = 0, length = elements.length; i < length; i++) {
        element = elements[i];
        if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
          return Element.extend(element);
        }
      }
    },

    findChildElements: function(element, expressions) {
      var selector = expressions.toArray().join(', ');
      return Prototype.Selector.select(selector, element || document);
    }
  });
})();

// script.aculo.us scriptaculous.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Scriptaculous = {
  Version: '1.8.2',
  require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
  },
  REQUIRED_PROTOTYPE: '1.6.0.3',
  load: function() {
    function convertVersionString(versionString) {
      var v = versionString.replace(/_.*|\./g, '');
      v = parseInt(v + '0'.times(4-v.length));
      return versionString.indexOf('_') > -1 ? v-1 : v;
    }

    if((typeof Prototype=='undefined') ||
       (typeof Element == 'undefined') ||
       (typeof Element.Methods=='undefined') ||
       (convertVersionString(Prototype.Version) <
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
       throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);

    var js = /scriptaculous\.js(\?.*)?$/;
    $$('head script[src]').findAll(function(s) {
      return s.src.match(js);
    }).each(function(s) {
      var path = s.src.replace(js, ''),
      includes = s.src.match(/\?.*load=([a-z,]*)/);
      (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
       function(include) { Scriptaculous.require(path+include+'.js') });
    });
  }
};

Scriptaculous.load();

// script.aculo.us effects.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// converts rgb() and #xxx to #xxxxxx format,
// returns self (or first argument) if not convertable
String.prototype.parseColor = function() {
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {
    var cols = this.slice(4,this.length-1).split(',');
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
  } else {
    if (this.slice(0,1) == '#') {
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
      if (this.length==7) color = this.toLowerCase();
    }
  }
  return (color.length==7 ? color : (arguments[0] || this));
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);
  element.setStyle({fontSize: (percent/100) + 'em'});
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    spring: function(pos) {
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character),
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') ||
        Object.isFunction(element)) &&
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;

    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ?
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();

    var position = Object.isString(effect.options.queue) ?
      effect.options.queue : effect.options.queue.position;

    switch(position) {
      case 'front':
        // move unstarted effects after this effect
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }

    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);

    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++)
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;

    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, 'afterUpdate');
        }
      };
    })();

    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish();
        this.event('afterFinish');
        return;
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(),
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) :
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element,
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');

    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));

    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;

    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));

    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
  scrollOffsets = document.viewport.getScrollOffsets(),
  elementOffsets = $(element).cumulativeOffset();

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()); }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) {
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity});
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show();
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = {
    opacity: element.getInlineOpacity(),
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200,
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }),
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ],
     Object.extend({ duration: 1.0,
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element);
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false,
      scaleX: false,
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      }
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, {
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) {
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      });
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }),
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned();
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        }
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}); }}); }}); }}); }}); }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false,
    scaleX: false,
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, {
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping();
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping();
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var initialMoveX, initialMoveY;
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0;
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }

  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01,
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width },
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show();
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
             }
           }, options)
      );
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }

  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping();
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  return new Effect.Opacity(element,
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, {
      scaleContent: false,
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });

    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        };
      }
    }
    this.start(options);
  },

  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 );
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return {
        style: property.camelize(),
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      );
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] =
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) +
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');

Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }

  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]);
  });

  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
}

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element);
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) {
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    };
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);

// script.aculo.us controls.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2008 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least,
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most
// useful when one of the tokens is \n (a newline), as it
// allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
  throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { };
Autocompleter.Base = Class.create({
  baseInitialize: function(element, update, options) {
    element          = $(element);
    this.element     = element;
    this.update      = $(update);
    this.hasFocus    = false;
    this.changed     = false;
    this.active      = false;
    this.index       = 0;
    this.entryCount  = 0;
    this.oldElementValue = this.element.value;

    if(this.setOptions)
      this.setOptions(options);
    else
      this.options = options || { };

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.4;
    this.options.minChars     = this.options.minChars || 1;
    this.options.onShow       = this.options.onShow ||
      function(element, update){
        if(!update.style.position || update.style.position=='absolute') {
          update.style.position = 'absolute';
          Position.clone(element, update, {
            setHeight: false,
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide ||
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

    if(typeof(this.options.tokens) == 'string')
      this.options.tokens = new Array(this.options.tokens);
    // Force carriage returns as token delimiters anyway
    if (!this.options.tokens.include('\n'))
      this.options.tokens.push('\n');

    this.observer = null;

    this.element.setAttribute('autocomplete','off');

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
  },

  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix &&
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update,
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },

  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

  hide: function() {
    this.stopIndicator();
    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
    if(this.iefix) Element.hide(this.iefix);
  },

  startIndicator: function() {
    if(this.options.indicator) Element.show(this.options.indicator);
  },

  stopIndicator: function() {
    if(this.options.indicator) Element.hide(this.options.indicator);
  },

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_TAB:
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_ESC:
         this.hide();
         this.active = false;
         Event.stop(event);
         return;
       case Event.KEY_LEFT:
       case Event.KEY_RIGHT:
         return;
       case Event.KEY_UP:
         this.markPrevious();
         this.render();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         Event.stop(event);
         return;
      }
     else
       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN ||
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

    this.changed = true;
    this.hasFocus = true;

    if(this.observer) clearTimeout(this.observer);
      this.observer =
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
  },

  activate: function() {
    this.changed = false;
    this.hasFocus = true;
    this.getUpdatedChoices();
  },

  onHover: function(event) {
    var element = Event.findElement(event, 'LI');
    if(this.index != element.autocompleteIndex)
    {
        this.index = element.autocompleteIndex;
        this.render();
    }
    Event.stop(event);
  },

  onClick: function(event) {
    var element = Event.findElement(event, 'LI');
    this.index = element.autocompleteIndex;
    this.selectEntry();
    this.hide();
  },

  onBlur: function(event) {
    // needed to make click events working
    setTimeout(this.hide.bind(this), 250);
    this.hasFocus = false;
    this.active = false;
  },

  render: function() {
    if(this.entryCount > 0) {
      for (var i = 0; i < this.entryCount; i++)
        this.index==i ?
          Element.addClassName(this.getEntry(i),"selected") :
          Element.removeClassName(this.getEntry(i),"selected");
      if(this.hasFocus) {
        this.show();
        this.active = true;
      }
    } else {
      this.active = false;
      this.hide();
    }
  },

  markPrevious: function() {
    if(this.index > 0) this.index--;
      else this.index = this.entryCount-1;
//    this.getEntry(this.index).scrollIntoView(true);
        pos = Position.page(this.getEntry(this.index)); 
	        if ( Prototype.Browser.IE ) { 
	                if (pos[0] < 0 || pos[1] < 0 || pos[0] > document.documentElement.clientWidth || pos[1] > document.documentElement.clientHeight) this.getEntry(this.index).scrollIntoView(true);         
	        } else { 
	                if (pos[0] < 0 || pos[1] < 0 || pos[0] > window.innerWidth || pos[1] > window.innerHeight) this.getEntry(this.index).scrollIntoView(true); 
	        }  
  },

  markNext: function() {
    if(this.index < this.entryCount-1) this.index++;
      else this.index = 0;
//    this.getEntry(this.index).scrollIntoView(false);
       pos = Position.page(this.getEntry(this.index)); 
	        if ( Prototype.Browser.IE ) { 
	                if (pos[0] < 0 || pos[1] < 0 || pos[0] > document.documentElement.clientWidth || pos[1] > document.documentElement.clientHeight) this.getEntry(this.index).scrollIntoView(true);         
	        } else { 
	                if (pos[0] < 0 || pos[1] < 0 || pos[0] > window.innerWidth || pos[1] > window.innerHeight) this.getEntry(this.index).scrollIntoView(true); 
	        }  
  },

  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },

  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },

  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    this.oldElementValue = this.element.value;
    this.element.focus();

    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

  updateChoices: function(choices) {
    if(!this.changed && this.hasFocus) {
      this.update.innerHTML = choices;
      Element.cleanWhitespace(this.update);
      Element.cleanWhitespace(this.update.down());

      if(this.update.firstChild && this.update.down().childNodes) {
        this.entryCount =
          this.update.down().childNodes.length;
        for (var i = 0; i < this.entryCount; i++) {
          var entry = this.getEntry(i);
          entry.autocompleteIndex = i;
          this.addObservers(entry);
        }
      } else {
        this.entryCount = 0;
      }

      this.stopIndicator();
      this.index = 0;

      if(this.entryCount==1 && this.options.autoSelect) {
        this.selectEntry();
        this.hide();
      } else {
        this.render();
      }
    }
  },

  addObservers: function(element) {
    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
  },

  onObserverEvent: function() {
    this.changed = false;
    this.tokenBounds = null;
    if(this.getToken().length>=this.options.minChars) {
      this.getUpdatedChoices();
    } else {
      this.active = false;
      this.hide();
    }
    this.oldElementValue = this.element.value;
  },

  getToken: function() {
    var bounds = this.getTokenBounds();
    return this.element.value.substring(bounds[0], bounds[1]).strip();
  },

  getTokenBounds: function() {
    if (null != this.tokenBounds) return this.tokenBounds;
    var value = this.element.value;
    if (value.strip().empty()) return [-1, 0];
    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
    var offset = (diff == this.oldElementValue.length ? 1 : 0);
    var prevTokenPos = -1, nextTokenPos = value.length;
    var tp;
    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
      if (tp > prevTokenPos) prevTokenPos = tp;
      tp = value.indexOf(this.options.tokens[index], diff + offset);
      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
    }
    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
  }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
  var boundary = Math.min(newS.length, oldS.length);
  for (var index = 0; index < boundary; ++index)
    if (newS[index] != oldS[index])
      return index;
  return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
  initialize: function(element, update, url, options) {
    this.baseInitialize(element, update, options);
    this.options.asynchronous  = true;
    this.options.onComplete    = this.onComplete.bind(this);
    this.options.defaultParams = this.options.parameters || null;
    this.url                   = url;
  },

  getUpdatedChoices: function() {
    this.startIndicator();

    var entry = encodeURIComponent(this.options.paramName) + '=' +
      encodeURIComponent(this.getToken());

    this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

    if(this.options.defaultParams)
      this.options.parameters += '&' + this.options.defaultParams;

    new Ajax.Request(this.url, this.options);
  },

  onComplete: function(request) {
    this.updateChoices(request.responseText);
  }
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector'
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
  initialize: function(element, update, array, options) {
    this.baseInitialize(element, update, options);
    this.options.array = array;
  },

  getUpdatedChoices: function() {
    this.updateChoices(this.options.selector(this));
  },

  setOptions: function(options) {
    this.options = Object.extend({
      choices: 10,
      partialSearch: true,
      partialChars: 2,
      ignoreCase: true,
      fullSearch: false,
      selector: function(instance) {
        var ret       = []; // Beginning matches
        var partial   = []; // Inside matches
        var entry     = instance.getToken();
        var count     = 0;

        for (var i = 0; i < instance.options.array.length &&
          ret.length < instance.options.choices ; i++) {

          var elem = instance.options.array[i];
          var foundPos = instance.options.ignoreCase ?
            elem.toLowerCase().indexOf(entry.toLowerCase()) :
            elem.indexOf(entry);

          while (foundPos != -1) {
            if (foundPos == 0 && elem.length != entry.length) {
              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
                elem.substr(entry.length) + "</li>");
              break;
            } else if (entry.length >= instance.options.partialChars &&
              instance.options.partialSearch && foundPos != -1) {
              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                break;
              }
            }

            foundPos = instance.options.ignoreCase ?
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
              elem.indexOf(entry, foundPos + 1);

          }
        }
        if (partial.length)
          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length));
        return "<ul>" + ret.join('') + "</ul>";
      }
    }, options || { });
  }
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
  setTimeout(function() {
    Field.activate(field);
  }, 1);
};

Ajax.InPlaceEditor = Class.create({
  initialize: function(element, url, options) {
    this.url = url;
    this.element = element = $(element);
    this.prepareOptions();
    this._controls = { };
    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
    Object.extend(this.options, options || { });
    if (!this.options.formId && this.element.id) {
      this.options.formId = this.element.id + '-inplaceeditor';
      if ($(this.options.formId))
        this.options.formId = '';
    }
    if (this.options.externalControl)
      this.options.externalControl = $(this.options.externalControl);
    if (!this.options.externalControl)
      this.options.externalControlOnly = false;
    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
    this.element.title = this.options.clickToEditText;
    this._boundCancelHandler = this.handleFormCancellation.bind(this);
    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
    this._boundWrapperHandler = this.wrapUp.bind(this);
    this.registerListeners();
  },
  checkForEscapeOrReturn: function(e) {
    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
    if (Event.KEY_ESC == e.keyCode)
      this.handleFormCancellation(e);
    else if (Event.KEY_RETURN == e.keyCode)
      this.handleFormSubmission(e);
  },
  createControl: function(mode, handler, extraClasses) {
    var control = this.options[mode + 'Control'];
    var text = this.options[mode + 'Text'];
    if ('button' == control) {
      var btn = document.createElement('input');
      btn.type = 'submit';
      btn.value = text;
      btn.className = 'editor_' + mode + '_button';
      if ('cancel' == mode)
        btn.onclick = this._boundCancelHandler;
      this._form.appendChild(btn);
      this._controls[mode] = btn;
    } else if ('link' == control) {
      var link = document.createElement('a');
      link.href = '#';
      link.appendChild(document.createTextNode(text));
      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
      link.className = 'editor_' + mode + '_link';
      if (extraClasses)
        link.className += ' ' + extraClasses;
      this._form.appendChild(link);
      this._controls[mode] = link;
    }
  },
  createEditField: function() {
    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
    var fld;
    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
      fld = document.createElement('input');
      fld.type = 'text';
      var size = this.options.size || this.options.cols || 0;
      if (0 < size) fld.size = size;
    } else {
      fld = document.createElement('textarea');
      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
      fld.cols = this.options.cols || 40;
    }
    fld.name = this.options.paramName;
    fld.value = text; // No HTML breaks conversion anymore
    fld.className = 'editor_field';
    if (this.options.submitOnBlur)
      fld.onblur = this._boundSubmitHandler;
    this._controls.editor = fld;
    if (this.options.loadTextURL)
      this.loadExternalText();
    this._form.appendChild(this._controls.editor);
  },
  createForm: function() {
    var ipe = this;
    function addText(mode, condition) {
      var text = ipe.options['text' + mode + 'Controls'];
      if (!text || condition === false) return;
      ipe._form.appendChild(document.createTextNode(text));
    };
    this._form = $(document.createElement('form'));
    this._form.id = this.options.formId;
    this._form.addClassName(this.options.formClassName);
    this._form.onsubmit = this._boundSubmitHandler;
    this.createEditField();
    if ('textarea' == this._controls.editor.tagName.toLowerCase())
      this._form.appendChild(document.createElement('br'));
    if (this.options.onFormCustomization)
      this.options.onFormCustomization(this, this._form);
    addText('Before', this.options.okControl || this.options.cancelControl);
    this.createControl('ok', this._boundSubmitHandler);
    addText('Between', this.options.okControl && this.options.cancelControl);
    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
    addText('After', this.options.okControl || this.options.cancelControl);
  },
  destroy: function() {
    if (this._oldInnerHTML)
      this.element.innerHTML = this._oldInnerHTML;
    this.leaveEditMode();
    this.unregisterListeners();
  },
  enterEditMode: function(e) {
    if (this._saving || this._editing) return;
    this._editing = true;
    this.triggerCallback('onEnterEditMode');
    if (this.options.externalControl)
      this.options.externalControl.hide();
    this.element.hide();
    this.createForm();
    this.element.parentNode.insertBefore(this._form, this.element);
    if (!this.options.loadTextURL)
      this.postProcessEditField();
    if (e) Event.stop(e);
  },
  enterHover: function(e) {
    if (this.options.hoverClassName)
      this.element.addClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onEnterHover');
  },
  getText: function() {
    return this.element.innerHTML.unescapeHTML();
  },
  handleAJAXFailure: function(transport) {
    this.triggerCallback('onFailure', transport);
    if (this._oldInnerHTML) {
      this.element.innerHTML = this._oldInnerHTML;
      this._oldInnerHTML = null;
    }
  },
  handleFormCancellation: function(e) {
    this.wrapUp();
    if (e) Event.stop(e);
  },
  handleFormSubmission: function(e) {
    var form = this._form;
    var value = $F(this._controls.editor);
    this.prepareSubmission();
    var params = this.options.callback(form, value) || '';
    if (Object.isString(params))
      params = params.toQueryParams();
    params.editorId = this.element.id;
    if (this.options.htmlResponse) {
      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Updater({ success: this.element }, this.url, options);
    } else {
      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Request(this.url, options);
    }
    if (e) Event.stop(e);
  },
  leaveEditMode: function() {
    this.element.removeClassName(this.options.savingClassName);
    this.removeForm();
    this.leaveHover();
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
    if (this.options.externalControl)
      this.options.externalControl.show();
    this._saving = false;
    this._editing = false;
    this._oldInnerHTML = null;
    this.triggerCallback('onLeaveEditMode');
  },
  leaveHover: function(e) {
    if (this.options.hoverClassName)
      this.element.removeClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onLeaveHover');
  },
  loadExternalText: function() {
    this._form.addClassName(this.options.loadingClassName);
    this._controls.editor.disabled = true;
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._form.removeClassName(this.options.loadingClassName);
        var text = transport.responseText;
        if (this.options.stripLoadedTextTags)
          text = text.stripTags();
        this._controls.editor.value = text;
        this._controls.editor.disabled = false;
        this.postProcessEditField();
      }.bind(this),
      onFailure: this._boundFailureHandler
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },
  postProcessEditField: function() {
    var fpc = this.options.fieldPostCreation;
    if (fpc)
      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
  },
  prepareOptions: function() {
    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
      Object.extend(this.options, defs);
    }.bind(this));
  },
  prepareSubmission: function() {
    this._saving = true;
    this.removeForm();
    this.leaveHover();
    this.showSaving();
  },
  registerListeners: function() {
    this._listeners = { };
    var listener;
    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
      listener = this[pair.value].bind(this);
      this._listeners[pair.key] = listener;
      if (!this.options.externalControlOnly)
        this.element.observe(pair.key, listener);
      if (this.options.externalControl)
        this.options.externalControl.observe(pair.key, listener);
    }.bind(this));
  },
  removeForm: function() {
    if (!this._form) return;
    this._form.remove();
    this._form = null;
    this._controls = { };
  },
  showSaving: function() {
    this._oldInnerHTML = this.element.innerHTML;
    this.element.innerHTML = this.options.savingText;
    this.element.addClassName(this.options.savingClassName);
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
  },
  triggerCallback: function(cbName, arg) {
    if ('function' == typeof this.options[cbName]) {
      this.options[cbName](this, arg);
    }
  },
  unregisterListeners: function() {
    $H(this._listeners).each(function(pair) {
      if (!this.options.externalControlOnly)
        this.element.stopObserving(pair.key, pair.value);
      if (this.options.externalControl)
        this.options.externalControl.stopObserving(pair.key, pair.value);
    }.bind(this));
  },
  wrapUp: function(transport) {
    this.leaveEditMode();
    // Can't use triggerCallback due to backward compatibility: requires
    // binding + direct element
    this._boundComplete(transport, this.element);
  }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
  dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
  initialize: function($super, element, url, options) {
    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
    $super(element, url, options);
  },

  createEditField: function() {
    var list = document.createElement('select');
    list.name = this.options.paramName;
    list.size = 1;
    this._controls.editor = list;
    this._collection = this.options.collection || [];
    if (this.options.loadCollectionURL)
      this.loadCollection();
    else
      this.checkForExternalText();
    this._form.appendChild(this._controls.editor);
  },

  loadCollection: function() {
    this._form.addClassName(this.options.loadingClassName);
    this.showLoadingText(this.options.loadingCollectionText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        var js = transport.responseText.strip();
        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
          throw('Server returned an invalid collection representation.');
        this._collection = eval(js);
        this.checkForExternalText();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadCollectionURL, options);
  },

  showLoadingText: function(text) {
    this._controls.editor.disabled = true;
    var tempOption = this._controls.editor.firstChild;
    if (!tempOption) {
      tempOption = document.createElement('option');
      tempOption.value = '';
      this._controls.editor.appendChild(tempOption);
      tempOption.selected = true;
    }
    tempOption.update((text || '').stripScripts().stripTags());
  },

  checkForExternalText: function() {
    this._text = this.getText();
    if (this.options.loadTextURL)
      this.loadExternalText();
    else
      this.buildOptionList();
  },

  loadExternalText: function() {
    this.showLoadingText(this.options.loadingText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._text = transport.responseText.strip();
        this.buildOptionList();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },

  buildOptionList: function() {
    this._form.removeClassName(this.options.loadingClassName);
    this._collection = this._collection.map(function(entry) {
      return 2 === entry.length ? entry : [entry, entry].flatten();
    });
    var marker = ('value' in this.options) ? this.options.value : this._text;
    var textFound = this._collection.any(function(entry) {
      return entry[0] == marker;
    }.bind(this));
    this._controls.editor.update('');
    var option;
    this._collection.each(function(entry, index) {
      option = document.createElement('option');
      option.value = entry[0];
      option.selected = textFound ? entry[0] == marker : 0 == index;
      option.appendChild(document.createTextNode(entry[1]));
      this._controls.editor.appendChild(option);
    }.bind(this));
    this._controls.editor.disabled = false;
    Field.scrollFreeActivate(this._controls.editor);
  }
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
  if (!options) return;
  function fallback(name, expr) {
    if (name in options || expr === undefined) return;
    options[name] = expr;
  };
  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
  fallback('highlightColor', options.highlightcolor);
  fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
  DefaultOptions: {
    ajaxOptions: { },
    autoRows: 3,                                // Use when multi-line w/ rows == 1
    cancelControl: 'link',                      // 'link'|'button'|false
    cancelText: 'cancel',
    clickToEditText: 'Click to edit',
    externalControl: null,                      // id|elt
    externalControlOnly: false,
    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
    formClassName: 'inplaceeditor-form',
    formId: null,                               // id|elt
    highlightColor: '#ffff99',
    highlightEndColor: '#ffffff',
    hoverClassName: '',
    htmlResponse: true,
    loadingClassName: 'inplaceeditor-loading',
    loadingText: 'Loading...',
    okControl: 'button',                        // 'link'|'button'|false
    okText: 'ok',
    paramName: 'value',
    rows: 1,                                    // If 1 and multi-line, uses autoRows
    savingClassName: 'inplaceeditor-saving',
    savingText: 'Saving...',
    size: 0,
    stripLoadedTextTags: false,
    submitOnBlur: false,
    textAfterControls: '',
    textBeforeControls: '',
    textBetweenControls: ''
  },
  DefaultCallbacks: {
    callback: function(form) {
      return Form.serialize(form);
    },
    onComplete: function(transport, element) {
      // For backward compatibility, this one is bound to the IPE, and passes
      // the element directly.  It was too often customized, so we don't break it.
      new Effect.Highlight(element, {
        startcolor: this.options.highlightColor, keepBackgroundImage: true });
    },
    onEnterEditMode: null,
    onEnterHover: function(ipe) {
      ipe.element.style.backgroundColor = ipe.options.highlightColor;
      if (ipe._effect)
        ipe._effect.cancel();
    },
    onFailure: function(transport, ipe) {
      alert('Error communication with the server: ' + transport.responseText.stripTags());
    },
    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
    onLeaveEditMode: null,
    onLeaveHover: function(ipe) {
      ipe._effect = new Effect.Highlight(ipe.element, {
        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
        restorecolor: ipe._originalBackground, keepBackgroundImage: true
      });
    }
  },
  Listeners: {
    click: 'enterEditMode',
    keydown: 'checkForEscapeOrReturn',
    mouseover: 'enterHover',
    mouseout: 'leaveHover'
  }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
  loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer,
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
  initialize: function(element, delay, callback) {
    this.delay     = delay || 0.5;
    this.element   = $(element);
    this.callback  = callback;
    this.timer     = null;
    this.lastValue = $F(this.element);
    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
  },
  delayedListener: function(event) {
    if(this.lastValue == $F(this.element)) return;
    if(this.timer) clearTimeout(this.timer);
    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
    this.lastValue = $F(this.element);
  },
  onTimerEvent: function() {
    this.timer = null;
    this.callback(this.element, $F(this.element));
  }
});

// script.aculo.us dragdrop.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    // cache containers
    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }

    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },

  findDeepestChild: function(drops) {
    deepest = drops[0];

    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];

    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode;
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },

  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect(
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];

    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });

    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event);
        return true;
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
};

var Draggables = {
  drags: [],
  observers: [],

  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);

      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },

  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },

  activate: function(draggable) {
    if(draggable.options.delay) {
      this._timeout = setTimeout(function() {
        Draggables._timeout = null;
        window.focus();
        Draggables.activeDraggable = draggable;
      }.bind(this), draggable.options.delay);
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },

  deactivate: function() {
    this.activeDraggable = null;
  },

  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;

    this.activeDraggable.updateDrag(event, pointer);
  },

  endDrag: function(event) {
    if(this._timeout) {
      clearTimeout(this._timeout);
      this._timeout = null;
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },

  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },

  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },

  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },

  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },

  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
};

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){
            Draggable._dragging[element] = false
          }
        });
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };

    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
        }
      });

    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);

    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);

    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;

    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE

    this.options  = options;
    this.dragging = false;

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);

    Draggables.register(this);
  },

  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },

  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },

  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {
      // abort on form elements, fixes a Firefox issue
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;

      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

      Draggables.activate(this);
      Event.stop(event);
    }
  },

  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();

    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }

    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }

    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }

    Draggables.notify('onStart', this, event);

    if(this.options.starteffect) this.options.starteffect(this.element);
  },

  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);

    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }

    Draggables.notify('onDrag', this, event);

    this.draw(pointer);
    if(this.options.change) this.options.change(this);

    if(this.options.scroll) {
      this.stopScrolling();

      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }

    // fix AppleWebKit rendering
    if(Prototype.Browser.WebKit) window.scrollBy(0,0);

    Event.stop(event);
  },

  finishDrag: function(event, success) {
    this.dragging = false;

    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this._originallyAbsolute)
        Position.relativize(this.element);
      delete this._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false;
    if(success) {
      dropped = Droppables.fire(event, this.element);
      if (!dropped) dropped = false;
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);

    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect)
      this.options.endeffect(this.element);

    Draggables.deactivate(this);
    Droppables.reset();
  },

  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },

  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },

  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }

    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];

    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }

    var p = [0,1].map(function(i){
      return (point[i]-pos[i]-this.offset[i])
    }.bind(this));

    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this));
      }
    }}

    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";

    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },

  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },

  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },

  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }

    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }

    if(this.options.change) this.options.change(this);
  },

  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight;
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },

  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },

  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

  sortables: { },

  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },

  destroy: function(element){
    element = $(element);
    var s = Sortable.sortables[element.id];

    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');

      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false,
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,

      // these take arrays of elements or ids and can be
      // used for better initialization performance
      elements:    false,
      handles:     false,

      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    // build options for the droppables
    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    };

    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    };

    // fix for gecko engine
    Element.cleanWhitespace(element);

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e);
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);
    });

    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },

  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },

  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);

    if(!Element.isParent(dropon, element)) {
      var index;

      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;

      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }

      dropon.insertBefore(element, child);

      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    // mark on ghosting only
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return;

    if(!Sortable._marker) {
      Sortable._marker =
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

    if(position=='after')
      if(sortable.overlap == 'horizontal')
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

    Sortable._marker.show();
  },

  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];

    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;

      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      };

      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child);

      parent.children.push (child);
    }

    return parent;
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });

    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    };

    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });

    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });

    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });

    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },

  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" +
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
};

// Returns true if child is contained within element
Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
};

Element.findChildren = function(element, only, recursive, tagName) {
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
};

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
};


	Draggable.prototype.startDrag = function(event) {
	    this.dragging = true;
	    if(!this.delta)
	      this.delta = this.currentDelta();

	    if(this.options.zindex) {
	      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
	      this.element.style.zIndex = this.options.zindex;
	    }

	    if(this.options.ghosting) {
	      this._clone = this.element.cloneNode(true);
	      this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
	      if (!this.element._originallyAbsolute)
	        Position.absolutize(this.element);
	      this.element.parentNode.insertBefore(this._clone, this.element);
	    }


	    if(this.options.superghosting) {
	      Position.prepare();
	      var pointer = [Event.pointerX(event), Event.pointerY(event)];
	      body = document.getElementsByTagName("body")[0];
	      me = this.element;
	      this._clone = me.cloneNode(true);

	      me.parentNode.insertBefore(this._clone, me);
	      me.id = "clone_"+me.id;
	      me.hide();

	      Position.absolutize(me);
	      me.parentNode.removeChild(me);
	      body.appendChild(me);
	      //Retain height and width of object only if it has been nulled out.  -v0.3 Fix
	      if (me.style.width == "0px" || me.style.height == "0px")  {
	        me.style.width=Element.getWidth(this._clone)+"px";
	        me.style.height=Element.getHeight(this._clone)+"px";
	      }

	      //overloading in order to reduce repeated code weight.
	      this.originalScrollTop = (Element.getHeight(this._clone)/2);

	      this.draw(pointer);
	      me.show();
	    }

	    if(this.options.scroll) {
	      if (this.options.scroll == window) {
	        var where = this._getWindowScroll(this.options.scroll);
	        this.originalScrollLeft = where.left;
	        this.originalScrollTop = where.top;
	      } else {
	        this.originalScrollLeft = this.options.scroll.scrollLeft;
	        this.originalScrollTop = this.options.scroll.scrollTop;
	      }
	    }

	    Draggables.notify('onStart', this, event);

	    if(this.options.starteffect) this.options.starteffect(this.element);
	}


	Draggable.prototype.draw = function(point) {
	    var pos = Position.cumulativeOffset(this.element);
	    if(this.options.ghosting) {
	      var r   = Position.realOffset(this.element);
	      pos[0] += r[0] - Position.deltaX; 
	    pos[1] += r[1] - Position.deltaY;
	    }

	    var d = this.currentDelta();
	    pos[0] -= d[0]; 
	    pos[1] -= d[1];

	    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
	      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
	      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
	    }

	    var p = [0,1].map(function(i){ 
	      return (point[i]-pos[i]-this.offset[i]) 
	    }.bind(this));

	        if(this.options.snap) {
	          if(Object.isFunction(this.options.snap)) {
	            p = this.options.snap(p[0],p[1],this);
	          } else {
	          if(Object.isArray(this.options.snap)) {
	            p = p.map( function(v, i) {
	              return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
	          } else {
	            p = p.map( function(v) {
	              return (v/this.options.snap).round()*this.options.snap }.bind(this))
	          }
	        }}

	    if (this.options.superghosting)  {  
	    p[1] = point[1] - this.originalScrollTop;
	  }



	    var style = this.element.style;
	    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
	      style.left = p[0] + "px";
	    if((!this.options.constraint) || (this.options.constraint=='vertical'))
	      style.top  = p[1] + "px";

	    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
	}

	Droppables.isAffected = function(point, element, drop) {
	  Position.prepare();
	  positioned_within = Position.withinIncludingScrolloffsets(drop.element, point[0], point[1])
	  return (
	      (drop.element!=element) &&
	      ((!drop._containers) ||
	        this.isContained(element, drop)) &&
	      ((!drop.accept) ||
	        (Element.classNames(element).detect( 
	          function(v) { return drop.accept.include(v) } ) )) && positioned_within );


	}


	Draggable.prototype.finishDrag =  function(event, success) {
	  this.dragging = false;

	  if(this.options.quiet){
	    Position.prepare();
	    var pointer = [Event.pointerX(event), Event.pointerY(event)];
	    Droppables.show(pointer, this.element);
	  }

	  if(this.options.ghosting) {
	      if (!this.element._originallyAbsolute)
	        Position.relativize(this.element);
	      delete this.element._originallyAbsolute;
	      Element.remove(this._clone);
	      this._clone = null;
	  }



	  if(this.options.superghosting) {
	    body = document.getElementsByTagName("body")[0];
	      Element.remove(this.element);
	/*
	    me = this.element;
	    body.removeChild(me);
	*/
	    new Draggable(this._clone, this.options);
	  }

	  var dropped = false; 
	  if(success) { 
	    dropped = Droppables.fire(event, this.element); 
	    if (!dropped) dropped = false; 
	  }
	  if(dropped && this.options.onDropped) this.options.onDropped(this.element);
	  Draggables.notify('onEnd', this, event);

	  var revert = this.options.revert;
	  if(revert && typeof revert == 'function') revert = revert(this.element);

	  var d = this.currentDelta();
	  if(revert && this.options.reverteffect) {
	    if (dropped == 0 || revert != 'failure')
	      this.options.reverteffect(this.element,
	        d[1]-this.delta[1], d[0]-this.delta[0]);
	  } else {
	    this.delta = d;
	  }

	  if(this.options.zindex)
	    this.element.style.zIndex = this.originalZ;

	  if(this.options.endeffect) 
	    this.options.endeffect(this.element);

	  Draggables.deactivate(this);
	  Droppables.reset();
	}

// script.aculo.us builder.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
  //       due to a Firefox bug
  node: function(elementName) {
    elementName = elementName.toUpperCase();

    // try innerHTML approach
    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
      parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    } catch(e) {}
    var element = parentElement.firstChild || null;

    // see if browser added wrapping tags
    if(element && (element.tagName.toUpperCase() != elementName))
      element = element.getElementsByTagName(elementName)[0];

    // fallback to createElement approach
    if(!element) element = document.createElement(elementName);

    // abort if nothing could be created
    if(!element) return;

    // attributes (or text)
    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array) ||
        arguments[1].tagName) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
              parentElement.innerHTML = "<" +elementName + " " +
                attrs + "></" + elementName + ">";
            } catch(e) {}
            element = parentElement.firstChild || null;
            // workaround firefox 1.0.X bug
            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1])
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName.toUpperCase() != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
          }
        }

    // text, or array of children
    if(arguments[2])
      this._children(element, arguments[2]);

     return $(element);
  },
  _text: function(text) {
     return document.createTextNode(text);
  },

  ATTR_MAP: {
    'className': 'class',
    'htmlFor': 'for'
  },

  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
          '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(children.tagName) {
      element.appendChild(children);
      return;
    }
    if(typeof children=='object') { // array can hold nodes and text
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e);
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
        element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  },
  build: function(html) {
    var element = this.node('div');
    $(element).update(html.strip());
    return element.down();
  },
  dump: function(scope) {
    if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope

    var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
      "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
      "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
      "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
      "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
      "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);

    tags.each( function(tag){
      scope[tag] = function() {
        return Builder.node.apply(Builder, [tag].concat($A(arguments)));
      };
    });
  }
};

// script.aculo.us slider.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Marty Haught, Thomas Fuchs
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

// options:
//  axis: 'vertical', or 'horizontal' (default)
//
// callbacks:
//  onChange(value)
//  onSlide(value)
Control.Slider = Class.create({
  initialize: function(handle, track, options) {
    var slider = this;

    if (Object.isArray(handle)) {
      this.handles = handle.collect( function(e) { return $(e) });
    } else {
      this.handles = [$(handle)];
    }

    this.track   = $(track);
    this.options = options || { };

    this.axis      = this.options.axis || 'horizontal';
    this.increment = this.options.increment || 1;
    this.step      = parseInt(this.options.step || '1');
    this.range     = this.options.range || $R(0,1);

    this.value     = 0; // assure backwards compat
    this.values    = this.handles.map( function() { return 0 });
    this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
    this.options.startSpan = $(this.options.startSpan || null);
    this.options.endSpan   = $(this.options.endSpan || null);

    this.restricted = this.options.restricted || false;

    this.maximum   = this.options.maximum || this.range.end;
    this.minimum   = this.options.minimum || this.range.start;

    // Will be used to align the handle onto the track, if necessary
    this.alignX = parseInt(this.options.alignX || '0');
    this.alignY = parseInt(this.options.alignY || '0');

    this.trackLength = this.maximumOffset() - this.minimumOffset();

    this.handleLength = this.isVertical() ?
      (this.handles[0].offsetHeight != 0 ?
        this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :
      (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :
        this.handles[0].style.width.replace(/px$/,""));

    this.active   = false;
    this.dragging = false;
    this.disabled = false;

    if (this.options.disabled) this.setDisabled();

    // Allowed values array
    this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
    if (this.allowedValues) {
      this.minimum = this.allowedValues.min();
      this.maximum = this.allowedValues.max();
    }

    this.eventMouseDown = this.startDrag.bindAsEventListener(this);
    this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
    this.eventMouseMove = this.update.bindAsEventListener(this);

    // Initialize handles in reverse (make sure first handle is active)
    this.handles.each( function(h,i) {
      i = slider.handles.length-1-i;
      slider.setValue(parseFloat(
        (Object.isArray(slider.options.sliderValue) ?
          slider.options.sliderValue[i] : slider.options.sliderValue) ||
         slider.range.start), i);
      h.makePositioned().observe("mousedown", slider.eventMouseDown);
    });

    this.track.observe("mousedown", this.eventMouseDown);
    document.observe("mouseup", this.eventMouseUp);
    document.observe("mousemove", this.eventMouseMove);

    this.initialized = true;
  },
  dispose: function() {
    var slider = this;
    Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
    Event.stopObserving(document, "mouseup", this.eventMouseUp);
    Event.stopObserving(document, "mousemove", this.eventMouseMove);
    this.handles.each( function(h) {
      Event.stopObserving(h, "mousedown", slider.eventMouseDown);
    });
  },
  setDisabled: function(){
    this.disabled = true;
  },
  setEnabled: function(){
    this.disabled = false;
  },
  getNearestValue: function(value){
    if (this.allowedValues){
      if (value >= this.allowedValues.max()) return(this.allowedValues.max());
      if (value <= this.allowedValues.min()) return(this.allowedValues.min());

      var offset = Math.abs(this.allowedValues[0] - value);
      var newValue = this.allowedValues[0];
      this.allowedValues.each( function(v) {
        var currentOffset = Math.abs(v - value);
        if (currentOffset <= offset){
          newValue = v;
          offset = currentOffset;
        }
      });
      return newValue;
    }
    if (value > this.range.end) return this.range.end;
    if (value < this.range.start) return this.range.start;
    return value;
  },
  setValue: function(sliderValue, handleIdx){
    if (!this.active) {
      this.activeHandleIdx = handleIdx || 0;
      this.activeHandle    = this.handles[this.activeHandleIdx];
      this.updateStyles();
    }
    handleIdx = handleIdx || this.activeHandleIdx || 0;
    if (this.initialized && this.restricted) {
      if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
        sliderValue = this.values[handleIdx-1];
      if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
        sliderValue = this.values[handleIdx+1];
    }
    sliderValue = this.getNearestValue(sliderValue);
    this.values[handleIdx] = sliderValue;
    this.value = this.values[0]; // assure backwards compat

    this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
      this.translateToPx(sliderValue);

    this.drawSpans();
    if (!this.dragging || !this.event) this.updateFinished();
  },
  setValueBy: function(delta, handleIdx) {
    this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
      handleIdx || this.activeHandleIdx || 0);
  },
  translateToPx: function(value) {
    return Math.round(
      ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
      (value - this.range.start)) + "px";
  },
  translateToValue: function(offset) {
    return ((offset/(this.trackLength-this.handleLength) *
      (this.range.end-this.range.start)) + this.range.start);
  },
  getRange: function(range) {
    var v = this.values.sortBy(Prototype.K);
    range = range || 0;
    return $R(v[range],v[range+1]);
  },
  minimumOffset: function(){
    return(this.isVertical() ? this.alignY : this.alignX);
  },
  maximumOffset: function(){
    return(this.isVertical() ?
      (this.track.offsetHeight != 0 ? this.track.offsetHeight :
        this.track.style.height.replace(/px$/,"")) - this.alignY :
      (this.track.offsetWidth != 0 ? this.track.offsetWidth :
        this.track.style.width.replace(/px$/,"")) - this.alignX);
  },
  isVertical:  function(){
    return (this.axis == 'vertical');
  },
  drawSpans: function() {
    var slider = this;
    if (this.spans)
      $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
    if (this.options.startSpan)
      this.setSpan(this.options.startSpan,
        $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
    if (this.options.endSpan)
      this.setSpan(this.options.endSpan,
        $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
  },
  setSpan: function(span, range) {
    if (this.isVertical()) {
      span.style.top = this.translateToPx(range.start);
      span.style.height = this.translateToPx(range.end - range.start + this.range.start);
    } else {
      span.style.left = this.translateToPx(range.start);
      span.style.width = this.translateToPx(range.end - range.start + this.range.start);
    }
  },
  updateStyles: function() {
    this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
    Element.addClassName(this.activeHandle, 'selected');
  },
  startDrag: function(event) {
    if (Event.isLeftClick(event)) {
      if (!this.disabled){
        this.active = true;

        var handle = Event.element(event);
        var pointer  = [Event.pointerX(event), Event.pointerY(event)];
        var track = handle;
        if (track==this.track) {
          var offsets  = Position.cumulativeOffset(this.track);
          this.event = event;
          this.setValue(this.translateToValue(
           (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
          ));
          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        } else {
          // find the handle (prevents issues with Safari)
          while((this.handles.indexOf(handle) == -1) && handle.parentNode)
            handle = handle.parentNode;

          if (this.handles.indexOf(handle)!=-1) {
            this.activeHandle    = handle;
            this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
            this.updateStyles();

            var offsets  = Position.cumulativeOffset(this.activeHandle);
            this.offsetX = (pointer[0] - offsets[0]);
            this.offsetY = (pointer[1] - offsets[1]);
          }
        }
      }
      Event.stop(event);
    }
  },
  update: function(event) {
   if (this.active) {
      if (!this.dragging) this.dragging = true;
      this.draw(event);
      if (Prototype.Browser.WebKit) window.scrollBy(0,0);
      Event.stop(event);
   }
  },
  draw: function(event) {
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    var offsets = Position.cumulativeOffset(this.track);
    pointer[0] -= this.offsetX + offsets[0];
    pointer[1] -= this.offsetY + offsets[1];
    this.event = event;
    this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
    if (this.initialized && this.options.onSlide)
      this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
  },
  endDrag: function(event) {
    if (this.active && this.dragging) {
      this.finishDrag(event, true);
      Event.stop(event);
    }
    this.active = false;
    this.dragging = false;
  },
  finishDrag: function(event, success) {
    this.active = false;
    this.dragging = false;
    this.updateFinished();
  },
  updateFinished: function() {
    if (this.initialized && this.options.onChange)
      this.options.onChange(this.values.length>1 ? this.values : this.value, this);
    this.event = null;
  }
});

/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/core
 * @require prototype.js
 */

if(typeof(Control) == 'undefined')
    Control = {};
    
var $proc = function(proc){
    return typeof(proc) == 'function' ? proc : function(){return proc};
};

var $value = function(value){
    return typeof(value) == 'function' ? value() : value;
};

Object.Event = {
    extend: function(object){
        object._objectEventSetup = function(event_name){
            this._observers = this._observers || {};
            this._observers[event_name] = this._observers[event_name] || [];
        };
        object.observe = function(event_name,observer){
            if(typeof(event_name) == 'string' && typeof(observer) != 'undefined'){
                this._objectEventSetup(event_name);
                if(!this._observers[event_name].include(observer))
                    this._observers[event_name].push(observer);
            }else
                for(var e in event_name)
                    this.observe(e,event_name[e]);
        };
        object.stopObserving = function(event_name,observer){
            this._objectEventSetup(event_name);
            if(event_name && observer)
                this._observers[event_name] = this._observers[event_name].without(observer);
            else if(event_name)
                this._observers[event_name] = [];
            else
                this._observers = {};
        };
        object.observeOnce = function(event_name,outer_observer){
            var inner_observer = function(){
                outer_observer.apply(this,arguments);
                this.stopObserving(event_name,inner_observer);
            }.bind(this);
            this._objectEventSetup(event_name);
            this._observers[event_name].push(inner_observer);
        };
        object.notify = function(event_name){
            this._objectEventSetup(event_name);
            var collected_return_values = [];
            var args = $A(arguments).slice(1);
            try{
                for(var i = 0; i < this._observers[event_name].length; ++i)
                    collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i],args) || null);
            }catch(e){
                if(e == $break)
                    return false;
                else
                    throw e;
            }
            return collected_return_values;
        };
        if(object.prototype){
            object.prototype._objectEventSetup = object._objectEventSetup;
            object.prototype.observe = object.observe;
            object.prototype.stopObserving = object.stopObserving;
            object.prototype.observeOnce = object.observeOnce;
            object.prototype.notify = function(event_name){
                if(object.notify){
                    var args = $A(arguments).slice(1);
                    args.unshift(this);
                    args.unshift(event_name);
                    object.notify.apply(object,args);
                }
                this._objectEventSetup(event_name);
                var args = $A(arguments).slice(1);
                var collected_return_values = [];
                try{
                    if(this.options && this.options[event_name] && typeof(this.options[event_name]) == 'function')
                        collected_return_values.push(this.options[event_name].apply(this,args) || null);
                    for(var i = 0; i < this._observers[event_name].length; ++i)
                        collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i],args) || null);
                }catch(e){
                    if(e == $break)
                        return false;
                    else
                        throw e;
                }
                return collected_return_values;
            };
        }
    }
};

/* Begin Core Extensions */

//Element.observeOnce
Element.addMethods({
    observeOnce: function(element,event_name,outer_callback){
        var inner_callback = function(){
            outer_callback.apply(this,arguments);
            Element.stopObserving(element,event_name,inner_callback);
        };
        Element.observe(element,event_name,inner_callback);
    }
});

//mouse:wheel
(function(){
    function wheel(event){
        var delta, element, custom_event;
        // normalize the delta
        if (event.wheelDelta) { // IE & Opera
            delta = event.wheelDelta / 120;
        } else if (event.detail) { // W3C
            delta =- event.detail / 3;
        }
        if (!delta) { return; }
        element = Event.extend(event).target;
        element = Element.extend(element.nodeType === Node.TEXT_NODE ? element.parentNode : element);
        custom_event = element.fire('mouse:wheel',{ delta: delta });
        if (custom_event.stopped) {
            Event.stop(event);
            return false;
        }
    }
    document.observe('mousewheel',wheel);
    document.observe('DOMMouseScroll',wheel);
})();

/* End Core Extensions */

//from PrototypeUI
var IframeShim = Class.create({
    initialize: function() {
        this.element = new Element('iframe',{
            style: 'position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);display:none',
            src: 'javascript:void(0);',
            frameborder: 0 
        });
        $(document.body).insert(this.element);
    },
    hide: function() {
        this.element.hide();
        return this;
    },
    show: function() {
        this.element.show();
        return this;
    },
    positionUnder: function(element) {
        var element = $(element);
        var offset = element.cumulativeOffset();
        var dimensions = element.getDimensions();
        this.element.setStyle({
            left: offset[0] + 'px',
            top: offset[1] + 'px',
            width: dimensions.width + 'px',
            height: dimensions.height + 'px',
            zIndex: element.getStyle('zIndex') - 1
        }).show();
        return this;
    },
    setBounds: function(bounds) {
        for(prop in bounds)
            bounds[prop] += 'px';
        this.element.setStyle(bounds);
        return this;
    },
    destroy: function() {
        if(this.element)
            this.element.remove();
        return this;
    }
});


/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/extra/hotkey
 * @require prototype.js, livepipe.js
 */

/*global document, Prototype, Class, Event, $ */

if(typeof(Prototype) == "undefined") {
    throw "HotKey requires Prototype to be loaded."; }
if(typeof(Object.Event) == "undefined") {
    throw "HotKey requires Object.Event to be loaded."; }

var HotKey = Class.create({
    initialize: function(letter,callback,options){
        letter = letter.toUpperCase();
        HotKey.hotkeys.push(this);
        this.options = Object.extend({
            element: false,
            shiftKey: false,
            altKey: false,
            ctrlKey: true,
            bubbleEvent : true,
            fireOnce : false // Keep repeating event while key is pressed?
        },options || {});
        this.letter = letter;

        // All custom hotkey events should stop after their custom actions.
        this.callback = function (event) {
            if (!(this.options.fireOnce && this.fired) && Object.isFunction(callback)) { 
                callback(event); 
            }
            if (!this.options.bubbleEvent) { event.stop(); }
            this.fired = true;
        };

        this.element = $(this.options.element || document);
        this.handler = function(event){
            if(!event || (
                (Event['KEY_' + this.letter] || this.letter.charCodeAt(0)) == event.keyCode &&
                ((!this.options.shiftKey || (this.options.shiftKey && event.shiftKey)) &&
                    (!this.options.altKey || (this.options.altKey && event.altKey)) &&
                    (!this.options.ctrlKey || (this.options.ctrlKey && event.ctrlKey))
                )
            )){
                if(this.notify('beforeCallback',event) === false) {
                    return; }
                this.callback(event);
                this.notify('afterCallback',event);
            }
        }.bind(this);
        this.enable();
    },
    trigger: function(){
        this.handler();
    },
    enable: function(){
        this.element.observe('keydown',this.handler);
    },
    disable: function(){
        this.element.stopObserving('keydown',this.handler);
    },
    destroy: function(){
        this.disable();
        HotKey.hotkeys = HotKey.hotkeys.without(this);
    }
});
Object.extend(HotKey,{
    hotkeys: []
});
Object.Event.extend(HotKey);


/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/control/scrollbar
 * @require prototype.js, slider.js, livepipe.js
 */

if(typeof(Prototype) == "undefined")
    throw "Control.ScrollBar requires Prototype to be loaded.";
if(typeof(Control.Slider) == "undefined")
    throw "Control.ScrollBar requires Control.Slider to be loaded.";
if(typeof(Object.Event) == "undefined")
    throw "Control.ScrollBar requires Object.Event to be loaded.";

Control.ScrollBar = Class.create({
    initialize: function(container,track,options){
        this.enabled = false;
        this.notificationTimeout = false;
        this.container = $(container);
        this.boundMouseWheelEvent = this.onMouseWheel.bindAsEventListener(this);
        this.boundResizeObserver = this.onWindowResize.bind(this);
        this.track = $(track);
        this.handle = this.track.firstDescendant();
        this.options = Object.extend({
            active_class_name: 'scrolling',
            apply_active_class_name_to: this.container,
            notification_timeout_length: 125,
            handle_minimum_height: 25,
            scroll_to_smoothing: 0.01,
            scroll_to_steps: 15,
            proportional: true,
            slider_options: {}
        },options || {});
        this.slider = new Control.Slider(this.handle,this.track,Object.extend({
            axis: 'vertical',
            onSlide: this.onChange.bind(this),
            onChange: this.onChange.bind(this)
        },this.options.slider_options));
        this.recalculateLayout();
        Event.observe(window,'resize',this.boundResizeObserver);
        this.handle.observe('mousedown',function(){
            if(this.auto_sliding_executer)
                this.auto_sliding_executer.stop();
        }.bind(this));
    },
    destroy: function(){
        Event.stopObserving(window,'resize',this.boundResizeObserver);
    },
    enable: function(){
        this.enabled = true;
        this.container.observe('mouse:wheel',this.boundMouseWheelEvent);
        this.slider.setEnabled();
        this.track.show();
        if(this.options.active_class_name)
            $(this.options.apply_active_class_name_to).addClassName(this.options.active_class_name);
        this.notify('enabled');
    },
    disable: function(){
        this.enabled = false;
        this.container.stopObserving('mouse:wheel',this.boundMouseWheelEvent);
        this.slider.setDisabled();
        this.track.hide();
        if(this.options.active_class_name)
            $(this.options.apply_active_class_name_to).removeClassName(this.options.active_class_name);
        this.notify('disabled');
        this.reset();
    },
    reset: function(){
        this.slider.setValue(0);
    },
    recalculateLayout: function(){
        if(this.container.scrollHeight <= this.container.offsetHeight)
            this.disable();
        else{
            this.enable();
            this.slider.trackLength = this.slider.maximumOffset() - this.slider.minimumOffset();
            if(this.options.proportional){
                this.handle.style.height = Math.max(this.container.offsetHeight * (this.container.offsetHeight / this.container.scrollHeight),this.options.handle_minimum_height) + 'px';
                this.slider.handleLength = this.handle.style.height.replace(/px/,'');
            }
        }
    },
    onWindowResize: function(){
        this.recalculateLayout();
        this.scrollBy(0);
    },
    onMouseWheel: function(event){
        if(this.auto_sliding_executer)
            this.auto_sliding_executer.stop();
        this.slider.setValueBy(-(event.memo.delta / 20)); //put in math to account for the window height
        event.stop();
        return false;
    },
    onChange: function(value){
        this.container.scrollTop = Math.round(value / this.slider.maximum * (this.container.scrollHeight - this.container.offsetHeight));
        if(this.notification_timeout)
            window.clearTimeout(this.notificationTimeout);
        this.notificationTimeout = window.setTimeout(function(){
            this.notify('change',value);
        }.bind(this),this.options.notification_timeout_length);
    },
    getCurrentMaximumDelta: function(){
        return this.slider.maximum * (this.container.scrollHeight - this.container.offsetHeight);
    },
    getDeltaToElement: function(element){
        return this.slider.maximum * ((element.positionedOffset().top + (element.getHeight() / 2)) - (this.container.getHeight() / 2));
    },
    scrollTo: function(y,animate){
        var current_maximum_delta = this.getCurrentMaximumDelta();
        if(y == 'top')
            y = 0;
        else if(y == 'bottom')
            y = current_maximum_delta;
        else if(typeof(y) != "number")
            y = this.getDeltaToElement($(y));
        if(this.enabled){
            y = Math.max(0,Math.min(y,current_maximum_delta));
            if(this.auto_sliding_executer)
                this.auto_sliding_executer.stop();
            var target_value = y / current_maximum_delta;
            var original_slider_value = this.slider.value;
            var delta = (target_value - original_slider_value) * current_maximum_delta;
            if(animate){
                this.auto_sliding_executer = new PeriodicalExecuter(function(){
                    if(Math.round(this.slider.value * 100) / 100 < Math.round(target_value * 100) / 100 || Math.round(this.slider.value * 100) / 100 > Math.round(target_value * 100) / 100){
                        this.scrollBy(delta / this.options.scroll_to_steps);
                    }else{
                        this.auto_sliding_executer.stop();
                        this.auto_sliding_executer = null;
                        if(typeof(animate) == "function")
                            animate();
                    }            
                }.bind(this),this.options.scroll_to_smoothing);
            }else
                this.scrollBy(delta);
        }else if(typeof(animate) == "function")
            animate();
    },
    scrollBy: function(y){
        if(!this.enabled)
            return false;
        this.slider.setValueBy(y / this.getCurrentMaximumDelta());
    }
});
Object.Event.extend(Control.ScrollBar);


/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/control/window
 * @require prototype.js, effects.js, draggable.js, resizable.js, livepipe.js
 */

//adds onDraw and constrainToViewport option to draggable
if(typeof(Draggable) != 'undefined'){
    //allows the point to be modified with an onDraw callback
    Draggable.prototype.draw = function(point) {
        var pos = Position.cumulativeOffset(this.element);
        if(this.options.ghosting) {
            var r = Position.realOffset(this.element);
            pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
        }
        
        var d = this.currentDelta();
        pos[0] -= d[0]; pos[1] -= d[1];
        
        if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
            pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
            pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
        }
        
        var p = [0,1].map(function(i){ 
            return (point[i]-pos[i]-this.offset[i]) 
        }.bind(this));
        
        if(this.options.snap) {
            if(typeof this.options.snap == 'function') {
                p = this.options.snap(p[0],p[1],this);
            } else {
                if(this.options.snap instanceof Array) {
                    p = p.map( function(v, i) {return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
                } else {
                    p = p.map( function(v) {return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
                  }
            }
        }
        
        if(this.options.onDraw)
            this.options.onDraw.bind(this)(p);
        else{
            var style = this.element.style;
            if(this.options.constrainToViewport){
                var viewport_dimensions = document.viewport.getDimensions();
                var container_dimensions = this.element.getDimensions();
                var margin_top = parseInt(this.element.getStyle('margin-top'));
                var margin_left = parseInt(this.element.getStyle('margin-left'));
                var boundary = [[
                    0 - margin_left,
                    0 - margin_top
                ],[
                    (viewport_dimensions.width - container_dimensions.width) - margin_left,
                    (viewport_dimensions.height - container_dimensions.height) - margin_top
                ]];
                if((!this.options.constraint) || (this.options.constraint=='horizontal')){ 
                    if((p[0] >= boundary[0][0]) && (p[0] <= boundary[1][0]))
                        this.element.style.left = p[0] + "px";
                    else
                        this.element.style.left = ((p[0] < boundary[0][0]) ? boundary[0][0] : boundary[1][0]) + "px";
                } 
                if((!this.options.constraint) || (this.options.constraint=='vertical')){ 
                    if((p[1] >= boundary[0][1] ) && (p[1] <= boundary[1][1]))
                        this.element.style.top = p[1] + "px";
                  else
                        this.element.style.top = ((p[1] <= boundary[0][1]) ? boundary[0][1] : boundary[1][1]) + "px";               
                }
            }else{
                if((!this.options.constraint) || (this.options.constraint=='horizontal'))
                  style.left = p[0] + "px";
                if((!this.options.constraint) || (this.options.constraint=='vertical'))
                  style.top     = p[1] + "px";
            }
            if(style.visibility=="hidden")
                style.visibility = ""; // fix gecko rendering
        }
    };
}

if(typeof(Prototype) == "undefined")
    throw "Control.Window requires Prototype to be loaded.";
if(typeof(IframeShim) == "undefined")
    throw "Control.Window requires IframeShim to be loaded.";
if(typeof(Object.Event) == "undefined")
    throw "Control.Window requires Object.Event to be loaded.";
/*
    known issues:
        - when iframe is clicked is does not gain focus
        - safari can't open multiple iframes properly
        - constrainToViewport: body must have no margin or padding for this to work properly
        - iframe will be mis positioned during fade in
        - document.viewport does not account for scrollbars (this will eventually be fixed in the prototype core)
    notes
        - setting constrainToViewport only works when the page is not scrollable
        - setting draggable: true will negate the effects of position: center
*/
Control.Window = Class.create({
    initialize: function(container,options){
        Control.Window.windows.push(this);
        
        //attribute initialization
        this.container = false;
        this.isOpen = false;
        this.href = false;
        this.sourceContainer = false; //this is optionally the container that will open the window
        this.ajaxRequest = false;
        this.remoteContentLoaded = false; //this is set when the code to load the remote content is run, onRemoteContentLoaded is fired when the connection is closed
        this.numberInSequence = Control.Window.windows.length + 1; //only useful for the effect scoping
        this.indicator = false;
        this.effects = {
            fade: false,
            appear: false
        };
        this.indicatorEffects = {
            fade: false,
            appear: false
        };
        
        //options
        this.options = Object.extend({
            //lifecycle
            beforeOpen: Prototype.emptyFunction,
            afterOpen: Prototype.emptyFunction,
            beforeClose: Prototype.emptyFunction,
            afterClose: Prototype.emptyFunction,
            //dimensions and modes
            height: null,
            width: null,
            className: false,
            position: 'center', //'center', 'relative', [x,y], [function(){return x;},function(){return y;}]
            offsetLeft: 0, //available only for anchors opening the window, or windows set to position: hover
            offsetTop: 0, //""
            iframe: false, //if the window has an href, this will display the href as an iframe instead of requesting the url as an an Ajax.Request
            hover: false, //element object to hover over, or if "true" only available for windows with sourceContainer (an anchor or any element already on the page with an href attribute)
            indicator: false, //element to show or hide when ajax requests, images and iframes are loading
            closeOnClick: false, //does not work with hover,can be: true (click anywhere), 'container' (will refer to this.container), or element (a specific element)
            iframeshim: true, //whether or not to position an iFrameShim underneath the window 
            //effects
            fade: false,
            fadeDuration: 0.75,
            //draggable
            draggable: false,
            onDrag: Prototype.emptyFunction,
            //resizable
            resizable: false,
            minHeight: false,
            minWidth: false,
            maxHeight: false,
            maxWidth: false,
            onResize: Prototype.emptyFunction,
            //draggable and resizable
            constrainToViewport: false,
            //ajax
            method: 'post',
            parameters: {},
            onComplete: Prototype.emptyFunction,
            onSuccess: Prototype.emptyFunction,
            onFailure: Prototype.emptyFunction,
            onException: Prototype.emptyFunction,
            //any element with an href (image,iframe,ajax) will call this after it is done loading
            onRemoteContentLoaded: Prototype.emptyFunction,
            insertRemoteContentAt: false //false will set this to this.container, can be string selector (first returned will be selected), or an Element that must be a child of this.container
        },options || {});
        
        //container setup
        this.indicator = this.options.indicator ? $(this.options.indicator) : false;
        if(container){
            if(typeof(container) == "string" && container.match(Control.Window.uriRegex))
                this.href = container;
            else{
                this.container = $(container);
                //need to create the container now for tooltips (or hover: element with no container already on the page)
                //second call made below will not create the container since the check is done inside createDefaultContainer()
                this.createDefaultContainer(container);
                //if an element with an href was passed in we use it to activate the window
                if(this.container && ((this.container.readAttribute('href') && this.container.readAttribute('href') != '') || (this.options.hover && this.options.hover !== true))){                        
                    if(this.options.hover && this.options.hover !== true)
                        this.sourceContainer = $(this.options.hover);
                    else{
                        this.sourceContainer = this.container;
                        this.href = this.container.readAttribute('href');
                        var rel = this.href.match(/^#(.+)$/);
                        if(rel && rel[1]){
                            this.container = $(rel[1]);
                            this.href = false;
                        }else
                            this.container = false;
                    }
                    //hover or click handling
                    this.sourceContainerOpenHandler = function(event){
                        this.open(event);
                        event.stop();
                        return false;
                    }.bindAsEventListener(this);
                    this.sourceContainerCloseHandler = function(event){
                        this.close(event);
                    }.bindAsEventListener(this);
                    this.sourceContainerMouseMoveHandler = function(event){
                        this.position(event);
                    }.bindAsEventListener(this);
                    if(this.options.hover){
                        this.sourceContainer.observe('mouseenter',this.sourceContainerOpenHandler);
                        this.sourceContainer.observe('mouseleave',this.sourceContainerCloseHandler);
                        if(this.options.position == 'mouse')
                            this.sourceContainer.observe('mousemove',this.sourceContainerMouseMoveHandler);
                    }else
                        this.sourceContainer.observe('click',this.sourceContainerOpenHandler);
                }
            }
        }
        this.createDefaultContainer(container);
        if(this.options.insertRemoteContentAt === false)
            this.options.insertRemoteContentAt = this.container;
        var styles = {
            margin: 0,
            position: 'absolute',
            zIndex: Control.Window.initialZIndexForWindow()
        };
        if(this.options.width)
            styles.width = $value(this.options.width) + 'px';
        if(this.options.height)
            styles.height = $value(this.options.height) + 'px';
        this.container.setStyle(styles);
        if(this.options.className)
            this.container.addClassName(this.options.className);
        this.positionHandler = this.position.bindAsEventListener(this);
        this.outOfBoundsPositionHandler = this.ensureInBounds.bindAsEventListener(this);
        this.bringToFrontHandler = this.bringToFront.bindAsEventListener(this);
        this.container.observe('mousedown',this.bringToFrontHandler);
        this.container.hide();
        this.closeHandler = this.close.bindAsEventListener(this);
        //iframeshim setup
        if(this.options.iframeshim){
            this.iFrameShim = new IframeShim();
            this.iFrameShim.hide();
        }
        //resizable support
        this.applyResizable();
        //draggable support
        this.applyDraggable();
        
        //makes sure the window can't go out of bounds
        Event.observe(window,'resize',this.outOfBoundsPositionHandler);
        
        this.notify('afterInitialize');
    },
    open: function(event){
        if(this.isOpen){
            this.bringToFront();
            return false;
        }
        if(this.notify('beforeOpen') === false)
            return false;
        //closeOnClick
        if(this.options.closeOnClick){
            if(this.options.closeOnClick === true)
                this.closeOnClickContainer = $(document.body);
            else if(this.options.closeOnClick == 'container')
                this.closeOnClickContainer = this.container;
            else if (this.options.closeOnClick == 'overlay'){
                Control.Overlay.load();
                this.closeOnClickContainer = Control.Overlay.container;
            }else
                this.closeOnClickContainer = $(this.options.closeOnClick);
            this.closeOnClickContainer.observe('click',this.closeHandler);
        }
        if(this.href && !this.options.iframe && !this.remoteContentLoaded){
            //link to image
            this.remoteContentLoaded = true;
            if(this.href.match(/\.(jpe?g|gif|png|tiff?)$/i)){
                var img = new Element('img');
                img.observe('load',function(img){
                    this.getRemoteContentInsertionTarget().insert(img);
                    this.position();
                    if(this.notify('onRemoteContentLoaded') !== false){
                        if(this.options.indicator)
                            this.hideIndicator();
                        this.finishOpen();
                    }
                }.bind(this,img));
                img.writeAttribute('src',this.href);
            }else{
                //if this is an ajax window it will only open if the request is successful
                if(!this.ajaxRequest){
                    if(this.options.indicator)
                        this.showIndicator();
                    this.ajaxRequest = new Ajax.Request(this.href,{
                        method: this.options.method,
                        parameters: this.options.parameters,
                        onComplete: function(request){
                            this.notify('onComplete',request);
                            this.ajaxRequest = false;
                        }.bind(this),
                        onSuccess: function(request){
                            this.getRemoteContentInsertionTarget().insert(request.responseText);
                            this.notify('onSuccess',request);
                            if(this.notify('onRemoteContentLoaded') !== false){
                                if(this.options.indicator)
                                    this.hideIndicator();
                                this.finishOpen();
                            }
                        }.bind(this),
                        onFailure: function(request){
                            this.notify('onFailure',request);
                            if(this.options.indicator)
                                this.hideIndicator();
                        }.bind(this),
                        onException: function(request,e){
                            this.notify('onException',request,e);
                            if(this.options.indicator)
                                this.hideIndicator();
                        }.bind(this)
                    });
                }
            }
            return true;
        }else if(this.options.iframe && !this.remoteContentLoaded){
            //iframe
            this.remoteContentLoaded = true;
            if(this.options.indicator)
                this.showIndicator();
            this.getRemoteContentInsertionTarget().insert(Control.Window.iframeTemplate.evaluate({
                href: this.href
            }));
            var iframe = this.container.down('iframe');
            iframe.onload = function(){
                this.notify('onRemoteContentLoaded');
                if(this.options.indicator)
                    this.hideIndicator();
                iframe.onload = null;
            }.bind(this);
        }
        this.finishOpen(event);
        return true
    },
    close: function(event){ //event may or may not be present
        if(!this.isOpen || this.notify('beforeClose',event) === false)
            return false;
        if(this.options.closeOnClick)
            this.closeOnClickContainer.stopObserving('click',this.closeHandler);
        if(this.options.fade){
            this.effects.fade = new Effect.Fade(this.container,{
                queue: {
                    position: 'front',
                    scope: 'Control.Window' + this.numberInSequence
                },
                from: 1,
                to: 0,
                duration: this.options.fadeDuration / 2,
                afterFinish: function(){
                    if(this.iFrameShim)
                        this.iFrameShim.hide();
                    this.isOpen = false;
                    this.notify('afterClose');
                }.bind(this)
            });
        }else{
            this.container.hide();
            if(this.iFrameShim)
                this.iFrameShim.hide();
        }
        if(this.ajaxRequest)
            this.ajaxRequest.transport.abort();
        if(!(this.options.draggable || this.options.resizable) && this.options.position == 'center')
            Event.stopObserving(window,'resize',this.positionHandler);
        if(!this.options.draggable && this.options.position == 'center')
            Event.stopObserving(window,'scroll',this.positionHandler);
        if(this.options.indicator)
            this.hideIndicator();
        if(!this.options.fade){
            this.isOpen = false;
            this.notify('afterClose');
        }
        return true;
    },
    position: function(event){
        //this is up top for performance reasons
        if(this.options.position == 'mouse'){
            var xy = [Event.pointerX(event),Event.pointerY(event)];
            this.container.setStyle({
                top: xy[1] + $value(this.options.offsetTop) + 'px',
                left: xy[0] + $value(this.options.offsetLeft) + 'px'
            });
            return;
        }
        var container_dimensions = this.container.getDimensions();
        var viewport_dimensions = document.viewport.getDimensions();
        Position.prepare();
        var offset_left = (Position.deltaX + Math.floor((viewport_dimensions.width - container_dimensions.width) / 2));
        var offset_top = (Position.deltaY + ((viewport_dimensions.height > container_dimensions.height) ? Math.floor((viewport_dimensions.height - container_dimensions.height) / 2) : 0));
        if(this.options.position == 'center'){
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? ((offset_top != null && offset_top > 0) ? offset_top : 0) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? ((offset_left != null && offset_left > 0) ? offset_left : 0) + 'px' : 0
            });
        }else if(this.options.position == 'relative'){
            var xy = this.sourceContainer.cumulativeOffset();
            var top = xy[1] + $value(this.options.offsetTop);
            var left = xy[0] + $value(this.options.offsetLeft);
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.height - (container_dimensions.height),top)) : top) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.width - (container_dimensions.width),left)) : left) + 'px' : 0
            });
        }else if(this.options.position.length){
            var top = $value(this.options.position[1]) + $value(this.options.offsetTop);
            var left = $value(this.options.position[0]) + $value(this.options.offsetLeft);
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.height - (container_dimensions.height),top)) : top) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.width - (container_dimensions.width),left)) : left) + 'px' : 0
            });
        }
        if(this.iFrameShim)
            this.updateIFrameShimZIndex();
    },
    ensureInBounds: function(){
        if(!this.isOpen)
            return;
        var viewport_dimensions = document.viewport.getDimensions();
        var container_offset = this.container.cumulativeOffset();
        var container_dimensions = this.container.getDimensions();
        if(container_offset.left + container_dimensions.width > viewport_dimensions.width){
            this.container.setStyle({
                left: (Math.max(0,viewport_dimensions.width - container_dimensions.width)) + 'px'
            });
        }
        if(container_offset.top + container_dimensions.height > viewport_dimensions.height){
            this.container.setStyle({
                top: (Math.max(0,viewport_dimensions.height - container_dimensions.height)) + 'px'
            });
        }
    },
    bringToFront: function(){
        Control.Window.bringToFront(this);
        this.notify('bringToFront');
    },
    destroy: function(){
        this.container.stopObserving('mousedown',this.bringToFrontHandler);
        if(this.draggable){
            Draggables.removeObserver(this.container);
            this.draggable.handle.stopObserving('mousedown',this.bringToFrontHandler);
            this.draggable.destroy();
        }
        if(this.resizable){
            Resizables.removeObserver(this.container);
            this.resizable.handle.stopObserving('mousedown',this.bringToFrontHandler);
            this.resizable.destroy();
        }
        if(this.container && !this.sourceContainer)
            this.container.remove();
        if(this.sourceContainer){
            if(this.options.hover){
                this.sourceContainer.stopObserving('mouseenter',this.sourceContainerOpenHandler);
                this.sourceContainer.stopObserving('mouseleave',this.sourceContainerCloseHandler);
                if(this.options.position == 'mouse')
                    this.sourceContainer.stopObserving('mousemove',this.sourceContainerMouseMoveHandler);
            }else
                this.sourceContainer.stopObserving('click',this.sourceContainerOpenHandler);
        }
        if(this.iFrameShim)
            this.iFrameShim.destroy();
        Event.stopObserving(window,'resize',this.outOfBoundsPositionHandler);
        Control.Window.windows = Control.Window.windows.without(this);
        this.notify('afterDestroy');
    },
    //private
    applyResizable: function(){
        if(this.options.resizable){
            if(typeof(Resizable) == "undefined")
                throw "Control.Window requires resizable.js to be loaded.";
            var resizable_handle = null;
            if(this.options.resizable === true){
                resizable_handle = new Element('div',{
                    className: 'resizable_handle'
                });
                this.container.insert(resizable_handle);
            }else
                resizable_handle = $(this.options.resziable);
            this.resizable = new Resizable(this.container,{
                handle: resizable_handle,
                minHeight: this.options.minHeight,
                minWidth: this.options.minWidth,
                maxHeight: this.options.constrainToViewport ? function(element){
                    //viewport height - top - total border height
                    return (document.viewport.getDimensions().height - parseInt(element.style.top || 0)) - (element.getHeight() - parseInt(element.style.height || 0));
                } : this.options.maxHeight,
                maxWidth: this.options.constrainToViewport ? function(element){
                    //viewport width - left - total border width
                    return (document.viewport.getDimensions().width - parseInt(element.style.left || 0)) - (element.getWidth() - parseInt(element.style.width || 0));
                } : this.options.maxWidth
            });
            this.resizable.handle.observe('mousedown',this.bringToFrontHandler);
            Resizables.addObserver(new Control.Window.LayoutUpdateObserver(this,function(){
                if(this.iFrameShim)
                    this.updateIFrameShimZIndex();
                this.notify('onResize');
            }.bind(this)));
        }
    },
    applyDraggable: function(){
        if(this.options.draggable){
            if(typeof(Draggables) == "undefined")
                throw "Control.Window requires dragdrop.js to be loaded.";
            var draggable_handle = null;
            if(this.options.draggable === true){
                draggable_handle = new Element('div',{
                    className: 'draggable_handle'
                });
                this.container.insert(draggable_handle);
            }else
                draggable_handle = $(this.options.draggable);
            this.draggable = new Draggable(this.container,{
                handle: draggable_handle,
                constrainToViewport: this.options.constrainToViewport,
                zindex: this.container.getStyle('z-index'),
                starteffect: function(){
                    if(Prototype.Browser.IE){
                        this.old_onselectstart = document.onselectstart;
                        document.onselectstart = function(){
                            return false;
                        };
                    }
                }.bind(this),
                endeffect: function(){
                    document.onselectstart = this.old_onselectstart;
                }.bind(this)
            });
            this.draggable.handle.observe('mousedown',this.bringToFrontHandler);
            Draggables.addObserver(new Control.Window.LayoutUpdateObserver(this,function(){
                if(this.iFrameShim)
                    this.updateIFrameShimZIndex();
                this.notify('onDrag');
            }.bind(this)));
        }
    },
    createDefaultContainer: function(container){
        if(!this.container){
            //no container passed or found, create it
            this.container = new Element('div',{
                id: 'control_window_' + this.numberInSequence
            });
            $(document.body).insert(this.container);
            if(typeof(container) == "string" && $(container) == null && !container.match(/^#(.+)$/) && !container.match(Control.Window.uriRegex))
                this.container.update(container);
        }
    },
    finishOpen: function(event){
        this.bringToFront();
        if(this.options.fade){
            if(typeof(Effect) == "undefined")
                throw "Control.Window requires effects.js to be loaded."
            if(this.effects.fade)
                this.effects.fade.cancel();
            this.effects.appear = new Effect.Appear(this.container,{
                queue: {
                    position: 'end',
                    scope: 'Control.Window.' + this.numberInSequence
                },
                from: 0,
                to: 1,
                duration: this.options.fadeDuration / 2,
                afterFinish: function(){
                    if(this.iFrameShim)
                        this.updateIFrameShimZIndex();
                    this.isOpen = true;
                    this.notify('afterOpen');
                }.bind(this)
            });
        }else
            this.container.show();
        this.position(event);
        if(!(this.options.draggable || this.options.resizable) && this.options.position == 'center')
            Event.observe(window,'resize',this.positionHandler,false);
        if(!this.options.draggable && this.options.position == 'center')
            Event.observe(window,'scroll',this.positionHandler,false);
        if(!this.options.fade){
            this.isOpen = true;
            this.notify('afterOpen');
        }
        return true;
    },
    showIndicator: function(){
        this.showIndicatorTimeout = window.setTimeout(function(){
            if(this.options.fade){
                this.indicatorEffects.appear = new Effect.Appear(this.indicator,{
                    queue: {
                        position: 'front',
                        scope: 'Control.Window.indicator.' + this.numberInSequence
                    },
                    from: 0,
                    to: 1,
                    duration: this.options.fadeDuration / 2
                });
            }else
                this.indicator.show();
        }.bind(this),Control.Window.indicatorTimeout);
    },
    hideIndicator: function(){
        if(this.showIndicatorTimeout)
            window.clearTimeout(this.showIndicatorTimeout);
        this.indicator.hide();
    },
    getRemoteContentInsertionTarget: function(){
        return typeof(this.options.insertRemoteContentAt) == "string" ? this.container.down(this.options.insertRemoteContentAt) : $(this.options.insertRemoteContentAt);
    },
    updateIFrameShimZIndex: function(){
        if(this.iFrameShim)
            this.iFrameShim.positionUnder(this.container);
    }
});
//class methods
Object.extend(Control.Window,{
    windows: [],
    baseZIndex: 9999,
    indicatorTimeout: 250,
    iframeTemplate: new Template('<iframe src="#{href}" width="100%" height="100%" frameborder="0"></iframe>'),
    uriRegex: /^(\/|\#|https?\:\/\/|[\w]+\/)/,
    bringToFront: function(w){
        Control.Window.windows = Control.Window.windows.without(w);
        Control.Window.windows.push(w);
        Control.Window.windows.each(function(w,i){
            var z_index = Control.Window.baseZIndex + i;
            w.container.setStyle({
                zIndex: z_index
            });
            if(w.isOpen){
                if(w.iFrameShim)
                w.updateIFrameShimZIndex();
            }
            if(w.options.draggable)
                w.draggable.options.zindex = z_index;
        });
    },
    open: function(container,options){
        var w = new Control.Window(container,options);
        w.open();
        return w;
    },
    //protected
    initialZIndexForWindow: function(w){
        return Control.Window.baseZIndex + (Control.Window.windows.length - 1);
    }
});
Object.Event.extend(Control.Window);

//this is the observer for both Resizables and Draggables
Control.Window.LayoutUpdateObserver = Class.create({
    initialize: function(w,observer){
        this.w = w;
        this.element = $(w.container);
        this.observer = observer;
    },
    onStart: Prototype.emptyFunction,
    onEnd: function(event_name,instance){
        if(instance.element == this.element && this.iFrameShim)
            this.w.updateIFrameShimZIndex();
    },
    onResize: function(event_name,instance){
        if(instance.element == this.element)
            this.observer(this.element);
    },
    onDrag: function(event_name,instance){
        if(instance.element == this.element)
            this.observer(this.element);
    }
});

//overlay for Control.Modal
Control.Overlay = {
    id: 'control_overlay',
    loaded: false,
    container: false,
    lastOpacity: 0,
    styles: {
        position: 'fixed',
        top: 0,
        left: 0,
        width: '100%',
        height: '100%',
        zIndex: 9998
    },
    ieStyles: {
        position: 'absolute',
        top: 0,
        left: 0,
        zIndex: 9998
    },
    effects: {
        fade: false,
        appear: false
    },
    load: function(){
        if(Control.Overlay.loaded)
            return false;
        Control.Overlay.loaded = true;
        Control.Overlay.container = new Element('div',{
            id: Control.Overlay.id
        });
        $(document.body).insert(Control.Overlay.container);
        if(Prototype.Browser.IE){
            Control.Overlay.container.setStyle(Control.Overlay.ieStyles);
            Event.observe(window,'scroll',Control.Overlay.positionOverlay);
            Event.observe(window,'resize',Control.Overlay.positionOverlay);
            Control.Overlay.observe('beforeShow',Control.Overlay.positionOverlay);
        }else
            Control.Overlay.container.setStyle(Control.Overlay.styles);
        Control.Overlay.iFrameShim = new IframeShim();
        Control.Overlay.iFrameShim.hide();
        Event.observe(window,'resize',Control.Overlay.positionIFrameShim);
        Control.Overlay.container.hide();
        return true;
    },
    unload: function(){
        if(!Control.Overlay.loaded)
            return false;
        Event.stopObserving(window,'resize',Control.Overlay.positionOverlay);
        Control.Overlay.stopObserving('beforeShow',Control.Overlay.positionOverlay);
        Event.stopObserving(window,'resize',Control.Overlay.positionIFrameShim);
        Control.Overlay.iFrameShim.destroy();
        Control.Overlay.container.remove();
        Control.Overlay.loaded = false;
        return true;
    },
    show: function(opacity,fade){
        if(Control.Overlay.notify('beforeShow') === false)
            return false;
        Control.Overlay.lastOpacity = opacity;
        Control.Overlay.positionIFrameShim();
        Control.Overlay.iFrameShim.show();
        if(fade){
            if(typeof(Effect) == "undefined")
                throw "Control.Window requires effects.js to be loaded."
            if(Control.Overlay.effects.fade)
                Control.Overlay.effects.fade.cancel();
            Control.Overlay.effects.appear = new Effect.Appear(Control.Overlay.container,{
                queue: {
                    position: 'end',
                    scope: 'Control.Overlay'
                },
                afterFinish: function(){
                    Control.Overlay.notify('afterShow');
                },
                from: 0,
                to: Control.Overlay.lastOpacity,
                duration: (fade === true ? 0.75 : fade) / 2
            });
        }else{
            Control.Overlay.container.setStyle({
                opacity: opacity || 1
            });
            Control.Overlay.container.show();
            Control.Overlay.notify('afterShow');
        }
        return true;
    },
    hide: function(fade){
        if(Control.Overlay.notify('beforeHide') === false)
            return false;
        if(Control.Overlay.effects.appear)
            Control.Overlay.effects.appear.cancel();
        Control.Overlay.iFrameShim.hide();
        if(fade){
            Control.Overlay.effects.fade = new Effect.Fade(Control.Overlay.container,{
                queue: {
                    position: 'front',
                    scope: 'Control.Overlay'
                },
                afterFinish: function(){
                    Control.Overlay.notify('afterHide');
                },
                from: Control.Overlay.lastOpacity,
                to: 0,
                duration: (fade === true ? 0.75 : fade) / 2
            });
        }else{
            Control.Overlay.container.hide();
            Control.Overlay.notify('afterHide');
        }
        return true;
    },
    positionIFrameShim: function(){
        if(Control.Overlay.container.visible())
            Control.Overlay.iFrameShim.positionUnder(Control.Overlay.container);
    },
    //IE only
    positionOverlay: function(){
        Control.Overlay.container.setStyle({
            width: document.body.clientWidth + 'px',
            height: document.body.clientHeight + 'px'
        });
    }
};
Object.Event.extend(Control.Overlay);

Control.ToolTip = Class.create(Control.Window,{
    initialize: function($super,container,tooltip,options){
        $super(tooltip,Object.extend(Object.extend(Object.clone(Control.ToolTip.defaultOptions),options || {}),{
            position: 'mouse',
            hover: container
        }));
    }
});
Object.extend(Control.ToolTip,{
    defaultOptions: {
        offsetLeft: 10
    }
});

Control.Modal = Class.create(Control.Window,{
    initialize: function($super,container,options){
        Control.Modal.InstanceMethods.beforeInitialize.bind(this)();
        $super(container,Object.extend(Object.clone(Control.Modal.defaultOptions),options || {}));
    }
});
Object.extend(Control.Modal,{
    defaultOptions: {
        overlayOpacity: 0.5,
        closeOnClick: 'overlay'
    },
    current: false,
    open: function(container,options){
        var modal = new Control.Modal(container,options);
        modal.open();
        return modal;
    },
    close: function(){
        if(Control.Modal.current)
            Control.Modal.current.close();
    },
    InstanceMethods: {
        beforeInitialize: function(){
            Control.Overlay.load();
            this.overlayFinishedOpening = false;
            this.observe('beforeOpen',Control.Modal.Observers.beforeOpen.bind(this));
            this.observe('afterOpen',Control.Modal.Observers.afterOpen.bind(this));
            this.observe('afterClose',Control.Modal.Observers.afterClose.bind(this));
        }
    },
    Observers: {
        beforeOpen: function(){
            if(!this.overlayFinishedOpening){
                Control.Overlay.observeOnce('afterShow',function(){
                    this.overlayFinishedOpening = true;
                    this.open();
                }.bind(this));
                Control.Overlay.show(this.options.overlayOpacity,this.options.fade ? this.options.fadeDuration : false);
                throw $break;
            }else
            Control.Window.windows.without(this).invoke('close');
        },
        afterOpen: function(){
            Control.Modal.current = this;
        },
        afterClose: function(){
            Control.Overlay.hide(this.options.fade ? this.options.fadeDuration : false);
            Control.Modal.current = false;
            this.overlayFinishedOpening = false;
        }
    }
});

Control.LightBox = Class.create(Control.Window,{
    initialize: function($super,container,options){
        this.allImagesLoaded = false;
        if(options.modal){
            var options = Object.extend(Object.clone(Control.LightBox.defaultOptions),options || {});
            options = Object.extend(Object.clone(Control.Modal.defaultOptions),options);
            options = Control.Modal.InstanceMethods.beforeInitialize.bind(this)(options);
            $super(container,options);
        }else
            $super(container,Object.extend(Object.clone(Control.LightBox.defaultOptions),options || {}));
        this.hasRemoteContent = this.href && !this.options.iframe;
        if(this.hasRemoteContent)
            this.observe('onRemoteContentLoaded',Control.LightBox.Observers.onRemoteContentLoaded.bind(this));
        else
            this.applyImageObservers();
        this.observe('beforeOpen',Control.LightBox.Observers.beforeOpen.bind(this));
    },
    applyImageObservers:function(){
        var images = this.getImages();
        this.numberImagesToLoad = images.length;
        this.numberofImagesLoaded = 0;
        images.each(function(image){
            image.observe('load',function(image){
                ++this.numberofImagesLoaded;
                if(this.numberImagesToLoad == this.numberofImagesLoaded){
                    this.allImagesLoaded = true;
                    this.onAllImagesLoaded();
                }
            }.bind(this,image));
            image.hide();
        }.bind(this));
    },
    onAllImagesLoaded: function(){
        this.getImages().each(function(image){
            this.showImage(image);
        }.bind(this));
        if(this.hasRemoteContent){
            if(this.options.indicator)
                this.hideIndicator();
            this.finishOpen();
        }else
            this.open();
    },
    getImages: function(){
        return this.container.select(Control.LightBox.imageSelector);
    },
    showImage: function(image){
        image.show();
    }
});
Object.extend(Control.LightBox,{
    imageSelector: 'img',
    defaultOptions: {},
    Observers: {
        beforeOpen: function(){
            if(!this.hasRemoteContent && !this.allImagesLoaded)
                throw $break;
        },
        onRemoteContentLoaded: function(){
            this.applyImageObservers();
            if(!this.allImagesLoaded)
                throw $break;
        }
    }
});


/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/control/tabs
 * @require prototype.js, livepipe.js
 */

/*global window, document, Prototype, $, $A, $H, $break, Class, Element, Event, Control */

if(typeof(Prototype) == "undefined") {
    throw "Control.Tabs requires Prototype to be loaded."; }
if(typeof(Object.Event) == "undefined") {
    throw "Control.Tabs requires Object.Event to be loaded."; }

Control.Tabs = Class.create({
    initialize: function(tab_list_container,options){
        if(!$(tab_list_container)) {
            throw "Control.Tabs could not find the element: " + tab_list_container; }
        this.activeContainer = false;
        this.activeLink = false;
        this.containers = $H({});
        this.links = [];
        Control.Tabs.instances.push(this);
        this.options = {
            beforeChange: Prototype.emptyFunction,
            afterChange: Prototype.emptyFunction,
            hover: false,
            linkSelector: 'li a',
            setClassOnContainer: false,
            activeClassName: 'active',
            defaultTab: 'first',
            autoLinkExternal: true,
            targetRegExp: /#(.+)$/,
            showFunction: Element.show,
            hideFunction: Element.hide
        };
        Object.extend(this.options,options || {});
        (typeof(this.options.linkSelector == 'string') ? 
            $(tab_list_container).select(this.options.linkSelector) : 
            this.options.linkSelector($(tab_list_container))
        ).findAll(function(link){
            return (/^#/).exec((Prototype.Browser.WebKit ? decodeURIComponent(link.href) : link.href).replace(window.location.href.split('#')[0],''));
        }).each(function(link){
            this.addTab(link);
        }.bind(this));
        this.containers.values().each(Element.hide);
        if(this.options.defaultTab == 'first') {
            this.setActiveTab(this.links.first());
        } else if(this.options.defaultTab == 'last') {
            this.setActiveTab(this.links.last());
        } else {
            this.setActiveTab(this.options.defaultTab); }
        var targets = this.options.targetRegExp.exec(window.location);
        if(targets && targets[1]){
            targets[1].split(',').each(function(target){
                this.setActiveTab(this.links.find(function(link){
                    return link.key == target;
                }));
            }.bind(this));
        }
        if(this.options.autoLinkExternal){
            $A(document.getElementsByTagName('a')).each(function(a){
                if(!this.links.include(a)){
                    var clean_href = a.href.replace(window.location.href.split('#')[0],'');
                    if(clean_href.substring(0,1) == '#'){
                        if(this.containers.keys().include(clean_href.substring(1))){
                            $(a).observe('click',function(event,clean_href){
                                this.setActiveTab(clean_href.substring(1));
                            }.bindAsEventListener(this,clean_href));
                        }
                    }
                }
            }.bind(this));
        }
    },
    addTab: function(link){
        this.links.push(link);
        link.key = link.getAttribute('href').replace(window.location.href.split('#')[0],'').split('#').last().replace(/#/,'');
        var container = $(link.key);
        if(!container) {
            throw "Control.Tabs: #" + link.key + " was not found on the page."; }
        this.containers.set(link.key,container);
        link[this.options.hover ? 'onmouseover' : 'onclick'] = function(link){
            if(window.event) {
                Event.stop(window.event); }
            this.setActiveTab(link);
            return false;
        }.bind(this,link);
    },
    setActiveTab: function(link){
        if(!link && typeof(link) == 'undefined') {
            return; }
        if(typeof(link) == 'string'){
            this.setActiveTab(this.links.find(function(_link){
                return _link.key == link;
            }));
        }else if(typeof(link) == 'number'){
            this.setActiveTab(this.links[link]);
        }else{
            if(this.notify('beforeChange',this.activeContainer,this.containers.get(link.key)) === false) {
                return; }
            if(this.activeContainer) {
                this.options.hideFunction(this.activeContainer); }
            this.links.each(function(item){
                (this.options.setClassOnContainer ? $(item.parentNode) : item).removeClassName(this.options.activeClassName);
            }.bind(this));
            (this.options.setClassOnContainer ? $(link.parentNode) : link).addClassName(this.options.activeClassName);
            this.activeContainer = this.containers.get(link.key);
            this.activeLink = link;
            this.options.showFunction(this.containers.get(link.key));
            this.notify('afterChange',this.containers.get(link.key));
        }
    },
    next: function(){
        this.links.each(function(link,i){
            if(this.activeLink == link && this.links[i + 1]){
                this.setActiveTab(this.links[i + 1]);
                throw $break;
            }
        }.bind(this));
    },
    previous: function(){
        this.links.each(function(link,i){
            if(this.activeLink == link && this.links[i - 1]){
                this.setActiveTab(this.links[i - 1]);
                throw $break;
            }
        }.bind(this));
    },
    first: function(){
        this.setActiveTab(this.links.first());
    },
    last: function(){
        this.setActiveTab(this.links.last());
    }
});
Object.extend(Control.Tabs,{
    instances: [],
    findByTabId: function(id){
        return Control.Tabs.instances.find(function(tab){
            return tab.links.find(function(link){
                return link.key == id;
            });
        });
    }
});
Object.Event.extend(Control.Tabs);


/* $Id: flotr.js 110 2009-04-27 17:43:43Z fabien.menager $ */

/** 
 * @projectDescription Flotr is a javascript plotting library based on the Prototype Javascript Framework.
 * @author Bas Wenneker
 * @license MIT License <http://www.opensource.org/licenses/mit-license.php>
 * @version 0.2.0
 */
var Flotr = {
	version: '%version%',
	author: 'Bas Wenneker',
	website: 'http://www.solutoire.com',
	/**
	 * An object of the default registered graph types. Use Flotr.register(type, functionName)
	 * to add your own type.
	 */
	_registeredTypes:{
		'lines': 'drawSeriesLines',
		'points': 'drawSeriesPoints',
		'bars': 'drawSeriesBars',
		'candles': 'drawSeriesCandles',
		'pie': 'drawSeriesPie'
	},
	/**
	 * Can be used to register your own chart type. Default types are 'lines', 'points' and 'bars'.
	 * This is still experimental.
	 * @todo Test and confirm.
	 * @param {String} type - type of chart, like 'pies', 'bars' etc.
	 * @param {String} functionName - Name of the draw function, like 'drawSeriesPies', 'drawSeriesBars' etc.
	 */
	register: function(type, functionName){
		Flotr._registeredTypes[type] = functionName+'';	
	},
	/**
	 * Draws the graph. This function is here for backwards compatibility with Flotr version 0.1.0alpha.
	 * You could also draw graphs by directly calling Flotr.Graph(element, data, options).
	 * @param {Element} el - element to insert the graph into
	 * @param {Object} data - an array or object of dataseries
	 * @param {Object} options - an object containing options
	 * @param {Class} _GraphKlass_ - (optional) Class to pass the arguments to, defaults to Flotr.Graph
	 * @return {Object} returns a new graph object and of course draws the graph.
	 */
	draw: function(el, data, options, _GraphKlass_){	
		_GraphKlass_ = _GraphKlass_ || Flotr.Graph;
		return new _GraphKlass_(el, data, options);
	},
	/**
	 * Collects dataseries from input and parses the series into the right format. It returns an Array 
	 * of Objects each having at least the 'data' key set.
	 * @param {Array, Object} data - Object or array of dataseries
	 * @return {Array} Array of Objects parsed into the right format ({(...,) data: [[x1,y1], [x2,y2], ...] (, ...)})
	 */
	getSeries: function(data){
		return data.collect(function(serie){
			var i;
			serie = (serie.data) ? Object.clone(serie) : {'data': serie};
			for (i = serie.data.length-1; i > -1; --i) {
				serie.data[i][1] = (serie.data[i][1] === null ? null : parseFloat(serie.data[i][1])); 
			}
			return serie;
		});
	},
	/**
	 * Recursively merges two objects.
	 * @param {Object} src - source object (likely the object with the least properties)
	 * @param {Object} dest - destination object (optional, object with the most properties)
	 * @return {Object} recursively merged Object
	 */
	merge: function(src, dest){
		var result = dest || {};
		for(var i in src){
			result[i] = (src[i] != null && typeof(src[i]) == 'object' && !(src[i].constructor == Array || src[i].constructor == RegExp) && !Object.isElement(src[i])) ? Flotr.merge(src[i], dest[i]) : result[i] = src[i];		
		}
		return result;
	},	
	/**
	 * Function calculates the ticksize and returns it.
	 * @param {Integer} noTicks - number of ticks
	 * @param {Integer} min - lower bound integer value for the current axis
	 * @param {Integer} max - upper bound integer value for the current axis
	 * @param {Integer} decimals - number of decimals for the ticks
	 * @return {Integer} returns the ticksize in pixels
	 */
	getTickSize: function(noTicks, min, max, decimals){
		var delta = (max - min) / noTicks;	
		var magn = Flotr.getMagnitude(delta);
		
		// Norm is between 1.0 and 10.0.
		var norm = delta / magn;
		
		var tickSize = 10;
		if(norm < 1.5) tickSize = 1;
		else if(norm < 2.25) tickSize = 2;
		else if(norm < 3) tickSize = ((decimals == 0) ? 2 : 2.5);
		else if(norm < 7.5) tickSize = 5;
		
		return tickSize * magn;
	},
	/**
	 * Default tick formatter.
	 * @param {String, Integer} val - tick value integer
	 * @return {String} formatted tick string
	 */
	defaultTickFormatter: function(val){
		return val+'';
	},
	/**
	 * Formats the mouse tracker values.
	 * @param {Object} obj - Track value Object {x:..,y:..}
	 * @return {String} Formatted track string
	 */
	defaultTrackFormatter: function(obj){
		return '('+obj.x+', '+obj.y+')';
	}, 
	/**
	 * Formats the pies labels.
	 * @param {Object} slice - Slice object
	 * @return {String} Formatted pie label string
	 */
	defaultPieLabelFormatter: function(slice) {
		return (slice.fraction*100).toFixed(2)+'%';
	},
	/**
	 * Utility function to convert file size values in bytes to kB, MB, ...
	 * @param value {Number} - The value to convert
	 * @param precision {Number} - The number of digits after the comma (default: 2)
	 * @param base {Number} - The base (default: 1024)
	 */
	convertToBytes: function(value, precision, base){
		var sizes =         ['Y','Z','E','P','T','G','M','k',''],
		    fractionSizes = ['y','z','a','f','p','n','µ','m',''], 
				total = sizes.length;
		    
		base = base || 1024;
		precision = precision || 2;

    if (value == 0) return 0;
		
    if (value > 1) {
			while (total-- && (value > 1)) value /= base;
		}
		else {
			sizes = fractionSizes;
			total = sizes.length;
			while (total-- && (value < 1)) value *= base;
		}
    return (Math.round(value * precision) / precision) + sizes[total];
	},
	/**
	 * Returns the magnitude of the input value.
	 * @param {Integer, Float} x - integer or float value
	 * @return {Integer, Float} returns the magnitude of the input value
	 */
	getMagnitude: function(x){
		return Math.pow(10, Math.floor(Math.log(x) / Math.LN10));
	},
	toPixel: function(val){
		return Math.floor(val)+0.5;//((val-Math.round(val) < 0.4) ? (Math.floor(val)-0.5) : val);
	},
	toRad: function(angle){
		return -angle * (Math.PI/180);
	},
	/**
	 * Parses a color string and returns a corresponding Color.
	 * @param {String, Color} str - string thats representing a color
	 * @return {Color} returns a Color object or false
	 */
	parseColor: function(str){
		if (str instanceof Flotr.Color) return str;
		
		var result, Color = Flotr.Color;

		// rgb(num,num,num)
		if((result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str)))
			return new Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]));
	
		// rgba(num,num,num,num)
		if((result = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)))
			return new Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]), parseFloat(result[4]));
			
		// rgb(num%,num%,num%)
		if((result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str)))
			return new Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55);
	
		// rgba(num%,num%,num%,num)
		if((result = /rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)))
			return new Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55, parseFloat(result[4]));
			
		// #a0b1c2
		if((result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str)))
			return new Color(parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16));
	
		// #fff
		if((result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str)))
			return new Color(parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16));

		// Otherwise, we're most likely dealing with a named color.
		var name = str.strip().toLowerCase();
		if(name == 'transparent'){
			return new Color(255, 255, 255, 0);
		}
		return ((result = Color.lookupColors[name])) ? new Color(result[0], result[1], result[2]) : false;
	},
	/**
	 * Extracts the background-color of the passed element.
	 * @param {Element} element - The element from what the background color is extracted
	 * @return {String} color string
	 */
	extractColor: function(element){
		var color;
		// Loop until we find an element with a background color and stop when we hit the body element. 
		do {
			color = element.getStyle('background-color').toLowerCase();
			if(!(color == '' || color == 'transparent')) break;
			element = element.up(0);
		} while(!element.nodeName.match(/^body$/i));

		// Catch Safari's way of signaling transparent.
		return (color == 'rgba(0, 0, 0, 0)') ? 'transparent' : color;
	}
};
/**
 * Flotr Graph class that plots a graph on creation.
 */
Flotr.Graph = Class.create({
	/**
	 * Flotr Graph constructor.
	 * @param {Element} el - element to insert the graph into
	 * @param {Object} data - an array or object of dataseries
 	 * @param {Object} options - an object containing options
	 */
	initialize: function(el, data, options){
		this.el = $(el);
		
		if (!this.el) throw 'The target container doesn\'t exist';
		
		this.data = data;
		this.series = Flotr.getSeries(data);
		this.setOptions(options);
		
		// Initialize some variables
		this.lastMousePos = { pageX: null, pageY: null };
		this.selection = { first: { x: -1, y: -1}, second: { x: -1, y: -1} };
		this.plotOffset = {left: 0, right: 0, top: 0, bottom: 0};
		this.prevSelection = null;
		this.selectionInterval = null;
		this.ignoreClick = false;   
		this.prevHit = null;
    
		// Create and prepare canvas.
		this.constructCanvas();
		
		// Add event handlers for mouse tracking, clicking and selection
		this.initEvents();
		
		this.findDataRanges();
		this.calculateTicks(this.axes.x);
		this.calculateTicks(this.axes.x2);
		this.calculateTicks(this.axes.y);
		this.calculateTicks(this.axes.y2);
		
		this.calculateSpacing();
		this.draw();
		this.insertLegend();
    
		// Graph and Data tabs
		if (this.options.spreadsheet.show) this.constructTabs();
	},
	/**
	 * Sets options and initializes some variables and color specific values, used by the constructor. 
	 * @param {Object} opts - options object
	 */
	setOptions: function(opts){
		var options = {
			colors: ['#00A8F0', '#C0D800', '#CB4B4B', '#4DA74D', '#9440ED'], //=> The default colorscheme. When there are > 5 series, additional colors are generated.
			title: null,
			subtitle: null,
			legend: {
				show: true,            // => setting to true will show the legend, hide otherwise
				noColumns: 1,          // => number of colums in legend table // @todo: doesn't work for HtmlText = false
				labelFormatter: Prototype.K, // => fn: string -> string
				labelBoxBorderColor: '#CCCCCC', // => border color for the little label boxes
				labelBoxWidth: 14,
				labelBoxHeight: 10,
				labelBoxMargin: 5,
				container: null,       // => container (as jQuery object) to put legend in, null means default on top of graph
				position: 'nw',        // => position of default legend container within plot
				margin: 5,             // => distance from grid edge to default legend container within plot
				backgroundColor: null, // => null means auto-detect
				backgroundOpacity: 0.85// => set to 0 to avoid background, set to 1 for a solid background
			},
			xaxis: {
				ticks: null,           // => format: either [1, 3] or [[1, 'a'], 3]
				showLabels: true,      // => setting to true will show the axis ticks labels, hide otherwise
				labelsAngle: 0,        // => labels' angle, in degrees
				title: null,           // => axis title
				titleAngle: 0,         // => axis title's angle, in degrees
				noTicks: 5,            // => number of ticks for automagically generated ticks
				tickFormatter: Flotr.defaultTickFormatter, // => fn: number -> string
				tickDecimals: null,    // => no. of decimals, null means auto
				min: null,             // => min. value to show, null means set automatically
				max: null,             // => max. value to show, null means set automatically
				autoscaleMargin: 0,    // => margin in % to add if auto-setting min/max
				color: null
			},
			x2axis: {},
			yaxis: {
				ticks: null,           // => format: either [1, 3] or [[1, 'a'], 3]
				showLabels: true,      // => setting to true will show the axis ticks labels, hide otherwise
				labelsAngle: 0,        // => labels' angle, in degrees
				title: null,           // => axis title
				titleAngle: 90,        // => axis title's angle, in degrees
				noTicks: 5,            // => number of ticks for automagically generated ticks
				tickFormatter: Flotr.defaultTickFormatter, // => fn: number -> string
				tickDecimals: null,    // => no. of decimals, null means auto
				min: null,             // => min. value to show, null means set automatically
				max: null,             // => max. value to show, null means set automatically
				autoscaleMargin: 0,    // => margin in % to add if auto-setting min/max
				color: null
			},
			y2axis: {
				titleAngle: 270
			},
			points: {
				show: false,           // => setting to true will show points, false will hide
				radius: 3,             // => point radius (pixels)
				lineWidth: 2,          // => line width in pixels
				fill: true,            // => true to fill the points with a color, false for (transparent) no fill
				fillColor: '#FFFFFF',  // => fill color
				fillOpacity: 0.4
			},
			lines: {
				show: false,           // => setting to true will show lines, false will hide
				lineWidth: 2,          // => line width in pixels
				fill: false,           // => true to fill the area from the line to the x axis, false for (transparent) no fill
				fillColor: null,       // => fill color
				fillOpacity: 0.4       // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
			},
			bars: {
				show: false,           // => setting to true will show bars, false will hide
				lineWidth: 2,          // => in pixels
				barWidth: 1,           // => in units of the x axis
				fill: true,            // => true to fill the area from the line to the x axis, false for (transparent) no fill
				fillColor: null,       // => fill color
				fillOpacity: 0.4,      // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
				horizontal: false,
				stacked: false,
				centered: true         // => center the bars to their x axis value
			},
			candles: {
				show: false,           // => setting to true will show candle sticks, false will hide
				lineWidth: 1,          // => in pixels
				wickLineWidth: 1,      // => in pixels
				candleWidth: 0.6,      // => in units of the x axis
				fill: true,            // => true to fill the area from the line to the x axis, false for (transparent) no fill
				upFillColor: '#00A8F0',// => up sticks fill color
				downFillColor: '#CB4B4B',// => down sticks fill color
				fillOpacity: 0.5,      // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
				barcharts: false       // => draw as barcharts (not standard bars but financial barcharts)
			},
			pie: {
				show: false,           // => setting to true will show bars, false will hide
				lineWidth: 1,          // => in pixels
				fill: true,            // => true to fill the area from the line to the x axis, false for (transparent) no fill
				fillColor: null,       // => fill color
				fillOpacity: 0.6,      // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
				explode: 6,            // => the number of pixels the splices will be far from the center
				sizeRatio: 0.6,        // => the size ratio of the pie relative to the plot 
				startAngle: Math.PI/4, // => the first slice start angle
				labelFormatter: Flotr.defaultPieLabelFormatter,
				pie3D: false,          // => whether to draw the pie in 3 dimenstions or not (ineffective) 
				pie3DviewAngle: (Math.PI/2 * 0.8),
				pie3DspliceThickness: 20
			},
			grid: {
				color: '#545454',      // => primary color used for outline and labels
				backgroundColor: null, // => null for transparent, else color
				tickColor: '#DDDDDD',  // => color used for the ticks
				labelMargin: 3,        // => margin in pixels
				verticalLines: true,   // => whether to show gridlines in vertical direction
				horizontalLines: true, // => whether to show gridlines in horizontal direction
				outlineWidth: 2        // => width of the grid outline/border in pixels
			},
			selection: {
				mode: null,            // => one of null, 'x', 'y' or 'xy'
				color: '#B6D9FF',      // => selection box color
				fps: 20                // => frames-per-second
			},
			crosshair: {
				mode: null,            // => one of null, 'x', 'y' or 'xy'
				color: '#FF0000',      // => crosshair color
				hideCursor: true       // => hide the cursor when the crosshair is shown
			},
			mouse: {
				track: false,          // => true to track the mouse, no tracking otherwise
				position: 'se',        // => position of the value box (default south-east)
				relative: false,       // => next to the mouse cursor
				trackFormatter: Flotr.defaultTrackFormatter, // => formats the values in the value box
				margin: 5,             // => margin in pixels of the valuebox
				lineColor: '#FF3F19',  // => line color of points that are drawn when mouse comes near a value of a series
				trackDecimals: 1,      // => decimals for the track values
				sensibility: 2,        // => the lower this number, the more precise you have to aim to show a value
				radius: 3,             // => radius of the track point
 				fillColor: null,       // => color to fill our select bar with only applies to bar and similar graphs (only bars for now)
				fillOpacity: 0.4       // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill 
			},
			shadowSize: 4,             // => size of the 'fake' shadow
			defaultType: 'lines',      // => default series type
			HtmlText: true,            // => wether to draw the text using HTML or on the canvas
			fontSize: 7.5,             // => canvas' text font size
			spreadsheet: {
				show: false,           // => show the data grid using two tabs
				tabGraphLabel: 'Graph',
				tabDataLabel: 'Data',
				toolbarDownload: 'Download CSV', // @todo: add language support
				toolbarSelectAll: 'Select all'
			}
		};
		
		options.x2axis = Object.extend(Object.clone(options.xaxis), options.x2axis);
		options.y2axis = Object.extend(Object.clone(options.yaxis), options.y2axis);
		this.options = Flotr.merge((opts || {}), options);
		
		// The 4 axes of the plot
		this.axes = {
			x:  {options: this.options.xaxis,  n: 1}, 
			x2: {options: this.options.x2axis, n: 2}, 
			y:  {options: this.options.yaxis,  n: 1}, 
			y2: {options: this.options.y2axis, n: 2}
		};
		
		// Initialize some variables used throughout this function.
		var assignedColors = [],
		    colors = [],
		    ln = this.series.length,
		    neededColors = this.series.length,
		    oc = this.options.colors, 
		    usedColors = [],
		    variation = 0,
		    c, i, j, s, tooClose;

		// Collect user-defined colors from series.
		for(i = neededColors - 1; i > -1; --i){
			c = this.series[i].color;
			if(c != null){
				--neededColors;
				if(Object.isNumber(c)) assignedColors.push(c);
				else usedColors.push(Flotr.parseColor(c));
			}
		}
		
		// Calculate the number of colors that need to be generated.
		for(i = assignedColors.length - 1; i > -1; --i)
			neededColors = Math.max(neededColors, assignedColors[i] + 1);

		// Generate needed number of colors.
		for(i = 0; colors.length < neededColors;){
			c = (oc.length == i) ? new Flotr.Color(100, 100, 100) : Flotr.parseColor(oc[i]);
			
			// Make sure each serie gets a different color.
			var sign = variation % 2 == 1 ? -1 : 1;
			var factor = 1 + sign * Math.ceil(variation / 2) * 0.2;
			c.scale(factor, factor, factor);

			/**
			 * @todo if we're getting too close to something else, we should probably skip this one
			 */
			colors.push(c);
			
			if(++i >= oc.length){
				i = 0;
				++variation;
			}
		}
	
		// Fill the options with the generated colors.
		for(i = 0, j = 0; i < ln; ++i){
			s = this.series[i];

			// Assign the color.
			if(s.color == null){
				s.color = colors[j++].toString();
			}else if(Object.isNumber(s.color)){
				s.color = colors[s.color].toString();
			}
			
			// Every series needs an axis
			if (!s.xaxis) s.xaxis = this.axes.x;
			     if (s.xaxis == 1) s.xaxis = this.axes.x;
			else if (s.xaxis == 2) s.xaxis = this.axes.x2;
			
			if (!s.yaxis) s.yaxis = this.axes.y;
			     if (s.yaxis == 1) s.yaxis = this.axes.y;
			else if (s.yaxis == 2) s.yaxis = this.axes.y2;
			
			// Apply missing options to the series.
			s.lines   = Object.extend(Object.clone(this.options.lines), s.lines);
			s.points  = Object.extend(Object.clone(this.options.points), s.points);
			s.bars    = Object.extend(Object.clone(this.options.bars), s.bars);
			s.candles = Object.extend(Object.clone(this.options.candles), s.candles);
			s.pie     = Object.extend(Object.clone(this.options.pie), s.pie);
			s.mouse   = Object.extend(Object.clone(this.options.mouse), s.mouse);
			
			if(s.shadowSize == null) s.shadowSize = this.options.shadowSize;
		}
	},
	/**
	 * Initializes the canvas and it's overlay canvas element. When the browser is IE, this makes use 
	 * of excanvas. The overlay canvas is inserted for displaying interactions. After the canvas elements
	 * are created, the elements are inserted into the container element.
	 */
	constructCanvas: function(){
		var el = this.el,
			size, c, oc;
		
		// The old canvases are retrieved to avoid memory leaks ...
		this.canvas = el.select('.flotr-canvas')[0];
		this.overlay = el.select('.flotr-overlay')[0];
		
		// ... and all the child elements are removed
		el.childElements().invoke('remove');

		// For positioning labels and overlay.
		el.setStyle({position:'relative', cursor:'default'});

		this.canvasWidth = el.getWidth();
		this.canvasHeight = el.getHeight();
		size = {'width': this.canvasWidth, 'height': this.canvasHeight};

		if(this.canvasWidth <= 0 || this.canvasHeight <= 0){
			throw 'Invalid dimensions for plot, width = ' + this.canvasWidth + ', height = ' + this.canvasHeight;
		}

		// Insert main canvas.
		if (!this.canvas) {
			c = this.canvas = $(document.createElement('canvas'));
			c.className = 'flotr-canvas';
			c.writeAttribute('style', 'position:absolute;left:0px;top:0px;');
		}
		c = this.canvas.writeAttribute(size).show();
		el.insert(c);
    
		// Insert overlay canvas for interactive features.
		if (!this.overlay) {
			oc = this.overlay = $(document.createElement('canvas'));
			oc.className = 'flotr-overlay';
			oc.writeAttribute('style', 'position:absolute;left:0px;top:0px;');
		}
		oc = this.overlay.writeAttribute(size).show();
		el.insert(oc);
		
		if(Prototype.Browser.IE){
			window.G_vmlCanvasManager.initElement(c);
			window.G_vmlCanvasManager.initElement(oc);
		}
		this.ctx = c.getContext('2d');
		this.octx = oc.getContext('2d');

		// Enable text functions
		this.textEnabled = !!this.ctx.drawText;
	},
	/**
	 * Calculates a text box dimensions, wether it is drawn on the canvas or inserted into the DOM
	 * @param {String} text - The text in the box
	 * @param {Object} canvasStyle - An object containing the style for the text if drawn on the canvas
	 * @param {String} HtmlStyle - A CSS style for the text if inserted into the DOM
	 * @param {Object} className - A CSS className for the text if inserted into the DOM
	 */
	getTextDimensions: function(text, canvasStyle, HtmlStyle, className) {
		if (!text) return {width:0, height:0};
		
		if (!this.options.HtmlText && this.textEnabled) {
			var bounds = this.ctx.getTextBounds(text, canvasStyle);
			return {
				width: bounds.width+2, 
				height: bounds.height+6
			};
		}
		else {
			var dummyDiv = this.el.insert('<div style="position:absolute;top:-10000px;'+HtmlStyle+'" class="'+className+' flotr-dummy-div">' + text + '</div>').select(".flotr-dummy-div")[0];
			dim = dummyDiv.getDimensions();
			dummyDiv.remove();
			return dim;
		}
	},
	/**
	 * Builds a matrix of the data to make the correspondance between the x values and the y values :
	 * X value => Y values from the axes
	 * @return {Array} The data grid
	 */
	loadDataGrid: function(){
		if (this.seriesData) return this.seriesData;

		var s = this.series,
		    dg = [];

    /* The data grid is a 2 dimensions array. There is a row for each X value.
     * Each row contains the x value and the corresponding y value for each serie ('undefined' if there isn't one)
    **/
		for(i = 0; i < s.length; ++i){
			s[i].data.each(function(v) {
				var x = v[0],
				    y = v[1], 
					r = dg.find(function(row) {return row[0] == x});
				if (r) r[i+1] = y;
				else {
					var newRow = [];
					newRow[0] = x;
					newRow[i+1] = y;
					dg.push(newRow);
				}
			});
		}
		
    // The data grid is sorted by x value
		dg = dg.sortBy(function(v) {
			return v[0];
		});
		return this.seriesData = dg;
	},
	
	/**
	 * Shows the specified tab, by its name
	 * @todo make a tab manager (Flotr.Tabs)
	 * @param {String} tabName - The tab name
	 */
	showTab: function(tabName){
		var elementsClassNames = 'canvas, .flotr-labels, .flotr-legend, .flotr-legend-bg, .flotr-title, .flotr-subtitle';
		switch(tabName) {
			case 'graph':
				this.datagrid.up().hide();
				this.el.select(elementsClassNames).invoke('show');
				this.tabs.data.removeClassName('selected');
				this.tabs.graph.addClassName('selected');
			break;
			case 'data':
				this.constructDataGrid();
				this.datagrid.up().show();
				this.el.select(elementsClassNames).invoke('hide');
				this.tabs.data.addClassName('selected');
				this.tabs.graph.removeClassName('selected');
			break;
		}
	},
	/**
	 * Builds the tabs in the DOM
	 */
	constructTabs: function(){
		var tabsContainer = new Element('div', {className:'flotr-tabs-group', style:'position:absolute;left:0px;top:'+this.canvasHeight+'px;width:'+this.canvasWidth+'px;'});
		this.el.insert({bottom: tabsContainer});
		this.tabs = {
			graph: new Element('div', {className:'flotr-tab selected', style:'float:left;'}).update(this.options.spreadsheet.tabGraphLabel),
			data: new Element('div', {className:'flotr-tab', style:'float:left;'}).update(this.options.spreadsheet.tabDataLabel)
		};
		
		tabsContainer.insert(this.tabs.graph).insert(this.tabs.data);
		
		this.el.setStyle({height: this.canvasHeight+this.tabs.data.getHeight()+2+'px'});
		
		this.tabs.graph.observe('click', (function() {this.showTab('graph')}).bind(this));
		this.tabs.data.observe('click', (function() {this.showTab('data')}).bind(this));
	},
  /**
   * Constructs the data table for the spreadsheet
   * @todo make a spreadsheet manager (Flotr.Spreadsheet)
   * @return {Element} The resulting table element
   */
	constructDataGrid: function(){
		// If the data grid has already been built, nothing to do here
		if (this.datagrid) return this.datagrid;
		
		var i, j, 
		    s = this.series,
		    datagrid = this.loadDataGrid(),
			t = this.datagrid = new Element('table', {className:'flotr-datagrid', style:'height:100px;'}),
			colgroup = ['<colgroup><col />'];
		
		// First row : series' labels
		var html = ['<tr class="first-row">'];
		html.push('<th>&nbsp;</th>');
		for (i = 0; i < s.length; ++i) {
			html.push('<th scope="col">'+(s[i].label || String.fromCharCode(65+i))+'</th>');
			colgroup.push('<col />');
		}
		html.push('</tr>');
		
		// Data rows
		for (j = 0; j < datagrid.length; ++j) {
			html.push('<tr>');
			for (i = 0; i < s.length+1; ++i) {
				var tag = 'td';
				var content = (datagrid[j][i] != null ? Math.round(datagrid[j][i]*100000)/100000 : '');
				
				if (i == 0) {
					tag = 'th';
					var label;
					if(this.options.xaxis.ticks) {
						var tick = this.options.xaxis.ticks.find(function (x) { return x[0] == datagrid[j][i] });
						if (tick) label = tick[1];
					} 
					else {
						label = this.options.xaxis.tickFormatter(content);
					}
					
					if (label) content = label;
				}

				html.push('<'+tag+(tag=='th'?' scope="row"':'')+'>'+content+'</'+tag+'>');
			}
			html.push('</tr>');
		}
		colgroup.push('</colgroup>');
		t.update(colgroup.join('')+html.join(''));
		
		if (!Prototype.Browser.IE) {
			t.select('td').each(function(td) {
				td.observe('mouseover', function(e){
					td = e.element();
					var siblings = td.previousSiblings();
					
					t.select('th[scope=col]')[siblings.length-1].addClassName('hover');
					t.select('colgroup col')[siblings.length].addClassName('hover');
				});
				
				td.observe('mouseout', function(){
					t.select('colgroup col.hover, th.hover').each(function(e){e.removeClassName('hover')});
				});
			});
		}
		
		var toolbar = new Element('div', {className: 'flotr-datagrid-toolbar'}).
			insert(new Element('button', {type:'button', className:'flotr-datagrid-toolbar-button'}).update(this.options.spreadsheet.toolbarDownload).observe('click', this.downloadCSV.bind(this))).
			insert(new Element('button', {type:'button', className:'flotr-datagrid-toolbar-button'}).update(this.options.spreadsheet.toolbarSelectAll).observe('click', this.selectAllData.bind(this)));
		
		var container = new Element('div', {className:'flotr-datagrid-container', style:'left:0px;top:0px;width:'+this.canvasWidth+'px;height:'+this.canvasHeight+'px;overflow:auto;'});
		container.insert(toolbar);
		t.wrap(container.hide());
		
		this.el.insert(container);
		return t;
	},
	/**
	 * Selects the data table in the DOM for copy/paste
	 */
	selectAllData: function(){
		if (this.tabs) {
			var selection, range, doc, win, node = this.constructDataGrid();

			this.showTab('data');
			
			// deferred to be able to select the table
			(function () {
				if ((doc = node.ownerDocument) && (win = doc.defaultView) && 
				    win.getSelection && doc.createRange && 
				    (selection = window.getSelection()) && 
				    selection.removeAllRanges) {
						range = doc.createRange();
						range.selectNode(node);
						selection.removeAllRanges();
						selection.addRange(range);
				}
				else if (document.body && document.body.createTextRange && 
				        (range = document.body.createTextRange())) {
						range.moveToElementText(node);
						range.select();
				}
			}).defer();
			return true;
		}
		else return false;
	},
	/**
	 * Converts the data into CSV in order to download a file
	 */
	downloadCSV: function(){
		var i, csv = '"x"',
		    series = this.series,
		    dg = this.loadDataGrid();
		
		for (i = 0; i < series.length; ++i) {
			csv += '%09"'+(series[i].label || String.fromCharCode(65+i))+'"'; // \t
		}
		csv += "%0D%0A"; // \r\n
		
		for (i = 0; i < dg.length; ++i) {
			if (this.options.xaxis.ticks) {
				var tick = this.options.xaxis.ticks.find(function (x) { return x[0] == dg[i][0] });
				if (tick) dg[i][0] = tick[1];
			}
			else {
				dg[i][0] = this.options.xaxis.tickFormatter(dg[i][0]);
			}
			csv += dg[i].join('%09')+"%0D%0A"; // \t and \r\n
		}
		if (Prototype.Browser.IE) {
			csv = csv.gsub('%09', '\t').gsub('%0A', '\n').gsub('%0D', '\r');
			window.open().document.write(csv);
		}
		else window.open('data:text/csv,'+csv);
	},
	/**
	 * Initializes event some handlers.
	 */
	initEvents: function () {
		//@todo: maybe stopObserving with only flotr functions
		this.overlay.stopObserving();
		this.overlay.observe('mousedown', this.mouseDownHandler.bind(this));
		this.overlay.observe('mousemove', this.mouseMoveHandler.bind(this));
		this.overlay.observe('click', this.clickHandler.bind(this));
	},
	/**
	 * Function determines the min and max values for the xaxis and yaxis.
	 */
	findDataRanges: function(){
		var s = this.series, 
		    a = this.axes;
		
		a.x.datamin  = a.x.datamax = 
		a.x2.datamin = a.x2.datamax = 
		a.y.datamin  = a.y.datamax = 
		a.y2.datamin = a.y2.datamax = 0;
		
		if(s.length > 0){
			var i, j, h, x, y, data, xaxis, yaxis;
		
			// Get datamin, datamax start values 
			for(i = 0; i < s.length; ++i) {
				data = s[i].data, 
				xaxis = s[i].xaxis, 
				yaxis = s[i].yaxis;
				
				if (data.length > 0 && !s[i].hide) {
					if (!xaxis.used) xaxis.datamin = xaxis.datamax = data[0][0];
					if (!yaxis.used) yaxis.datamin = yaxis.datamax = data[0][1];
					xaxis.used = true;
					yaxis.used = true;

					for(h = data.length - 1; h > -1; --h){
	  					x = data[h][0];
	  			         if(x < xaxis.datamin) xaxis.datamin = x;
	   					else if(x > xaxis.datamax) xaxis.datamax = x;
	  			    
	  					for(j = 1; j < data[h].length; j++){
	  						y = data[h][j];
	  				         if(y < yaxis.datamin) yaxis.datamin = y;
	  	  				else if(y > yaxis.datamax) yaxis.datamax = y;
	  					}
					}
				}
			}
		}
		
		this.findXAxesValues();
		
		this.calculateRange(a.x);
		this.extendXRangeIfNeededByBar(a.x);
		
		if (a.x2.used) {
			this.calculateRange(a.x2);
			this.extendXRangeIfNeededByBar(a.x2);
		}
		
		this.calculateRange(a.y);
		this.extendYRangeIfNeededByBar(a.y);
		
		if (a.y2.used) {
			this.calculateRange(a.y2);
			this.extendYRangeIfNeededByBar(a.y2);
		}
	},
	/**
	 * Calculates the range of an axis to apply autoscaling.
	 * @param {Object} axis - The axis for what the range will be calculated
	 */
	calculateRange: function(axis){
		var o = axis.options,
		    min = o.min != null ? o.min : axis.datamin,
		    max = o.max != null ? o.max : axis.datamax,
		    margin;

		if(max - min == 0.0){
			var widen = (max == 0.0) ? 1.0 : 0.01;
			min -= widen;
			max += widen;
		}
		axis.tickSize = Flotr.getTickSize(o.noTicks, min, max, o.tickDecimals);

		// Autoscaling.
		if(o.min == null){
			// Add a margin.
			margin = o.autoscaleMargin;
			if(margin != 0){
				min -= axis.tickSize * margin;
				
				// Make sure we don't go below zero if all values are positive.
				if(min < 0 && axis.datamin >= 0) min = 0;
				min = axis.tickSize * Math.floor(min / axis.tickSize);
			}
		}
		if(o.max == null){
			margin = o.autoscaleMargin;
			if(margin != 0){
				max += axis.tickSize * margin;
				if(max > 0 && axis.datamax <= 0) max = 0;				
				max = axis.tickSize * Math.ceil(max / axis.tickSize);
			}
		}
		axis.min = min;
		axis.max = max;
	},
	/**
	 * Bar series autoscaling in x direction.
	 * @param {Object} axis - The axis to extend if needed
	 */
	extendXRangeIfNeededByBar: function(axis){
		if(axis.options.max == null){
			var newmin = axis.min,
			    newmax = axis.max,
			    i, s, b, c,
			    stackedSums = [], 
			    lastSerie = null;

			for(i = 0; i < this.series.length; ++i){
				s = this.series[i];
				b = s.bars;
				c = s.candles;
				if(s.xaxis == axis) {
					// For candle sticks and centered bars
					if (c.show || (b.centered && b.show)) {
						// We don't use c.candleWidth in order not to stick the borders
						newmax = Math.max(axis.datamax + 0.5, newmax);
						newmin = Math.min(axis.datamin - 0.5, newmin);
					}
					
					if (b.show) {
						// For normal vertical bars
						if (!b.horizontal && (b.barWidth + axis.datamax > newmax))
							newmax = axis.max + (b.centered ? b.barWidth/2 : b.barWidth);

						// For horizontal stacked bars
						if(b.stacked && b.horizontal){
							for (j = 0; j < s.data.length; j++) {
								if (b.show && b.stacked) {
									var x = s.data[j][0]+'';
									stackedSums[x] = (stackedSums[x] || 0) + s.data[j][1];
									lastSerie = s;
								}
							}
					    
							for (var j in stackedSums) {
								newmax = Math.max(stackedSums[j], newmax);
							}
						}
					}
				}
			}
			axis.lastSerie = lastSerie;
			axis.max = newmax;
			axis.min = newmin;
		}
	},
	/**
	 * Bar series autoscaling in y direction.
	 * @param {Object} axis - The axis to extend if needed
	 */
	extendYRangeIfNeededByBar: function(axis){
		if(axis.options.max == null){
			var newmax = axis.max,
				  i, s, b, c,
				  stackedSums = {},
				  lastSerie = null;
									
			for(i = 0; i < this.series.length; ++i){
				s = this.series[i];
				b = s.bars;
				c = s.candles;
				if (s.yaxis == axis && b.show && !s.hide) {
					// For normal horizontal bars and candle sticks
					if (b.horizontal && (b.barWidth + axis.datamax > newmax) || (c.candleWidth + axis.datamax > newmax)){
						newmax = axis.max + b.barWidth;
					}
					
					// For vertical stacked bars
					if(b.stacked && !b.horizontal){
						for (j = 0; j < s.data.length; j++) {
							if (s.bars.show && s.bars.stacked) {
								var x = s.data[j][0]+'';
								stackedSums[x] = (stackedSums[x] || 0) + s.data[j][1];
								lastSerie = s;
							}
						}
						
						for (var j in stackedSums) {
							newmax = Math.max(stackedSums[j], newmax);
						}
					}
				}
			}
			axis.lastSerie = lastSerie;
			axis.max = newmax;
		}
	},
	/** 
	 * Find every values of the x axes
	 */
	findXAxesValues: function(){
		for(i = this.series.length-1; i > -1 ; --i){
			s = this.series[i];
			s.xaxis.values = s.xaxis.values || {};
			for (j = s.data.length-1; j > -1 ; --j){
				s.xaxis.values[s.data[j][0]+''] = {};
			}
		}
	},
	/**
	 * Calculate axis ticks.
	 * @param {Object} axis - The axis for what the ticks will be calculated
	 */
	calculateTicks: function(axis){
		var o = axis.options, i, v;
		
		axis.ticks = [];	
		if(o.ticks){
			var ticks = o.ticks, t, label;

			if(Object.isFunction(ticks)){
				ticks = ticks({min: axis.min, max: axis.max});
			}
			
			// Clean up the user-supplied ticks, copy them over.
			for(i = 0; i < ticks.length; ++i){
				t = ticks[i];
				if(typeof(t) == 'object'){
					v = t[0];
					label = (t.length > 1) ? t[1] : o.tickFormatter(v);
				}else{
					v = t;
					label = o.tickFormatter(v);
				}
				axis.ticks[i] = { v: v, label: label };
			}
		}
		else {
			// Round to nearest multiple of tick size.
			var start = axis.tickSize * Math.ceil(axis.min / axis.tickSize),
			    decimals;
			
			// Then store all possible ticks.
			for(i = 0; start + i * axis.tickSize <= axis.max; ++i){
				v = start + i * axis.tickSize;
				
				// Round (this is always needed to fix numerical instability).
				decimals = o.tickDecimals;
				if(decimals == null) decimals = 1 - Math.floor(Math.log(axis.tickSize) / Math.LN10);
				if(decimals < 0) decimals = 0;
				
				v = v.toFixed(decimals);
				axis.ticks.push({ v: v, label: o.tickFormatter(v) });
			}
		}
	},
	/**
	 * Calculates axis label sizes.
	 */
	calculateSpacing: function(){
		var a = this.axes,
  			options = this.options,
  			series = this.series,
  			margin = options.grid.labelMargin,
  			x = a.x,
  			x2 = a.x2,
  			y = a.y,
  			y2 = a.y2,
  			maxOutset = 2,
  			i, j, l, dim;
		
		// Labels width and height
		[x, x2, y, y2].each(function(axis) {
			var maxLabel = '';
			
			if (axis.options.showLabels) {
				for(i = 0; i < axis.ticks.length; ++i){
					l = axis.ticks[i].label.length;
					if(l > maxLabel.length){
						maxLabel = axis.ticks[i].label;
					}
				}
			}
			axis.maxLabel  = this.getTextDimensions(maxLabel, {size:options.fontSize, angle: Flotr.toRad(axis.options.labelsAngle)}, 'font-size:smaller;', 'flotr-grid-label');
			axis.titleSize = this.getTextDimensions(axis.options.title, {size: options.fontSize*1.2, angle: Flotr.toRad(axis.options.titleAngle)}, 'font-weight:bold;', 'flotr-axis-title');
		}, this);

		// Title height
		dim = this.getTextDimensions(options.title, {size: options.fontSize*1.5}, 'font-size:1em;font-weight:bold;', 'flotr-title');
		this.titleHeight = dim.height;

		// Subtitle height
		dim = this.getTextDimensions(options.subtitle, {size: options.fontSize}, 'font-size:smaller;', 'flotr-subtitle');
		this.subtitleHeight = dim.height;

		// Grid outline line width.
		if(options.show){
			maxOutset = Math.max(maxOutset, options.points.radius + options.points.lineWidth/2);
		}
		for(j = 0; j < options.length; ++j){
			if (series[j].points.show){
				maxOutset = Math.max(maxOutset, series[j].points.radius + series[j].points.lineWidth/2);
			}
		}
		
		var p = this.plotOffset;
		p.bottom += (x.options.showLabels ?  (x.maxLabel.height  + margin) : 0) + 
		            (x.options.title ?       (x.titleSize.height + margin) : 0) + maxOutset;
		
		p.top    += (x2.options.showLabels ? (x2.maxLabel.height  + margin) : 0) + 
		            (x2.options.title ?      (x2.titleSize.height + margin) : 0) + this.subtitleHeight + this.titleHeight + maxOutset;
    
		p.left   += (y.options.showLabels ?  (y.maxLabel.width  + margin) : 0) + 
		            (y.options.title ?       (y.titleSize.width + margin) : 0) + maxOutset;
		
		p.right  += (y2.options.showLabels ? (y2.maxLabel.width  + margin) : 0) + 
		            (y2.options.title ?      (y2.titleSize.width + margin) : 0) + maxOutset;
    
		p.top = Math.floor(p.top); // In order the outline not to be blured
    
		this.plotWidth  = this.canvasWidth - p.left - p.right;
		this.plotHeight = this.canvasHeight - p.bottom - p.top;
		
		x.scale  = this.plotWidth / (x.max - x.min);
		x2.scale = this.plotWidth / (x2.max - x2.min);
		y.scale  = this.plotHeight / (y.max - y.min);
		y2.scale = this.plotHeight / (y2.max - y2.min);
	},
	/**
	 * Draws grid, labels and series.
	 */
	draw: function() {
		this.drawGrid();
		this.drawLabels();
		this.drawTitles();
    
		if(this.series.length){
			this.el.fire('flotr:beforedraw', [this.series, this]);
			for(var i = 0; i < this.series.length; i++){
				if (!this.series[i].hide)
					this.drawSeries(this.series[i]);
			}
		}
		this.el.fire('flotr:afterdraw', [this.series, this]);
	},
	/**
	 * Translates absolute horizontal x coordinates to relative coordinates.
	 * @param {Integer} x - absolute integer x coordinate
	 * @param {Object} axis - the reference axis
	 * @return {Integer} translated relative x coordinate
	 */
	tHoz: function(x, axis){
		axis = axis || this.axes.x;
		return (x - axis.min) * axis.scale;
	},
	/**
	 * Translates absolute vertical x coordinates to relative coordinates.
	 * @param {Integer} y - absolute integer y coordinate
	 * @param {Object} axis - the reference axis
	 * @return {Integer} translated relative y coordinate
	 */
	tVert: function(y, axis){
		axis = axis || this.axes.y;
		return this.plotHeight - (y - axis.min) * axis.scale;
	},
	/**
	 * Draws a grid for the graph.
	 */
	drawGrid: function(){
		var v, o = this.options,
		    ctx = this.ctx;
		if(o.grid.verticalLines || o.grid.horizontalLines){
			this.el.fire('flotr:beforegrid', [this.axes.x, this.axes.y, o, this]);
		}
		ctx.save();
		ctx.translate(this.plotOffset.left, this.plotOffset.top);

		// Draw grid background, if present in options.
		if(o.grid.backgroundColor != null){
			ctx.fillStyle = o.grid.backgroundColor;
			ctx.fillRect(0, 0, this.plotWidth, this.plotHeight);
		}
		
		// Draw grid lines in vertical direction.
		ctx.lineWidth = 1;
		ctx.strokeStyle = o.grid.tickColor;
		ctx.beginPath();
		if(o.grid.verticalLines){
			for(var i = 0; i < this.axes.x.ticks.length; ++i){
				v = this.axes.x.ticks[i].v;
				// Don't show lines on upper and lower bounds.
				if ((v == this.axes.x.min || v == this.axes.x.max) && o.grid.outlineWidth != 0)
					continue;
	
				ctx.moveTo(Math.floor(this.tHoz(v)) + ctx.lineWidth/2, 0);
				ctx.lineTo(Math.floor(this.tHoz(v)) + ctx.lineWidth/2, this.plotHeight);
			}
		}
		
		// Draw grid lines in horizontal direction.
		if(o.grid.horizontalLines){
			for(var j = 0; j < this.axes.y.ticks.length; ++j){
				v = this.axes.y.ticks[j].v;
				// Don't show lines on upper and lower bounds.
				if ((v == this.axes.y.min || v == this.axes.y.max) && o.grid.outlineWidth != 0)
					continue;
	
				ctx.moveTo(0, Math.floor(this.tVert(v)) + ctx.lineWidth/2);
				ctx.lineTo(this.plotWidth, Math.floor(this.tVert(v)) + ctx.lineWidth/2);
			}
		}
		ctx.stroke();
		
		// Draw axis/grid border.
		if(o.grid.outlineWidth != 0) {
			ctx.lineWidth = o.grid.outlineWidth;
			ctx.strokeStyle = o.grid.color;
			ctx.lineJoin = 'round';
			ctx.strokeRect(0, 0, this.plotWidth, this.plotHeight);
		}
		ctx.restore();
		if(o.grid.verticalLines || o.grid.horizontalLines){
			this.el.fire('flotr:aftergrid', [this.axes.x, this.axes.y, o, this]);
		}
	},
	/**
	 * Draws labels for x and y axis.
	 */   
	drawLabels: function(){		
		// Construct fixed width label boxes, which can be styled easily. 
		var noLabels = 0, axis,
			xBoxWidth, i, html, tick,
			options = this.options,
		    ctx = this.ctx,
		    a = this.axes;
		
		for(i = 0; i < a.x.ticks.length; ++i){
			if (a.x.ticks[i].label) {
				++noLabels;
			}
		}
		xBoxWidth = this.plotWidth / noLabels;
    
		if (!options.HtmlText && this.textEnabled) {
			var style = {
				size: options.fontSize,
				adjustAlign: true
			};
	
			// Add x labels.
			axis = a.x;
			style.color = axis.options.color || options.grid.color;
			for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
				tick = axis.ticks[i];
				if(!tick.label || tick.label.length == 0) continue;
				
				style.angle = Flotr.toRad(axis.options.labelsAngle);
				style.halign = 'c';
				style.valign = 't';
				
				ctx.drawText(
					tick.label,
					this.plotOffset.left + this.tHoz(tick.v, axis), 
					this.plotOffset.top + this.plotHeight + options.grid.labelMargin,
					style
				);
			}
			  
			// Add x2 labels.
			axis = a.x2;
			style.color = axis.options.color || options.grid.color;
			for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
				tick = axis.ticks[i];
				if(!tick.label || tick.label.length == 0) continue;
				
				style.angle = Flotr.toRad(axis.options.labelsAngle);
				style.halign = 'c';
				style.valign = 'b';
				
				ctx.drawText(
					tick.label,
					this.plotOffset.left + this.tHoz(tick.v, axis), 
					this.plotOffset.top + options.grid.labelMargin,
					style
				);
			}
			  
			// Add y labels.
			axis = a.y;
			style.color = axis.options.color || options.grid.color;
			for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
				tick = axis.ticks[i];
				if (!tick.label || tick.label.length == 0) continue;
				
				style.angle = Flotr.toRad(axis.options.labelsAngle);
				style.halign = 'r';
				style.valign = 'm';
				
				ctx.drawText(
					tick.label,
					this.plotOffset.left - options.grid.labelMargin, 
					this.plotOffset.top + this.tVert(tick.v, axis),
					style
				);
			}
			  
			// Add y2 labels.
			axis = a.y2;
			style.color = axis.options.color || options.grid.color;
			for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
				tick = axis.ticks[i];
				if (!tick.label || tick.label.length == 0) continue;
				
				style.angle = Flotr.toRad(axis.options.labelsAngle);
				style.halign = 'l';
				style.valign = 'm';
				
				ctx.drawText(
					tick.label,
					this.plotOffset.left + this.plotWidth + options.grid.labelMargin, 
					this.plotOffset.top + this.tVert(tick.v, axis),
					style
				);
				
				ctx.save();
				ctx.strokeStyle = style.color;
				ctx.beginPath();
				ctx.moveTo(this.plotOffset.left + this.plotWidth - 8, this.plotOffset.top + this.tVert(tick.v, axis));
				ctx.lineTo(this.plotOffset.left + this.plotWidth,     this.plotOffset.top + this.tVert(tick.v, axis));
				ctx.stroke();
				ctx.restore();
			}
		} 
		else if (a.x.options.showLabels || 
		         a.x2.options.showLabels || 
		         a.y.options.showLabels || 
		         a.y2.options.showLabels) {
			html = ['<div style="font-size:smaller;color:' + options.grid.color + ';" class="flotr-labels">'];
			
			// Add x labels.
			axis = a.x;
			if (axis.options.showLabels){
				for(i = 0; i < axis.ticks.length; ++i){
					tick = axis.ticks[i];
					if(!tick.label || tick.label.length == 0 || 
					    (this.plotOffset.left + this.tHoz(tick.v, axis) < 0) || 
					    (this.plotOffset.left + this.tHoz(tick.v, axis) > this.canvasWidth)) continue;
					html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight + options.grid.labelMargin) + 'px;left:' + (this.plotOffset.left + this.tHoz(tick.v, axis) - xBoxWidth/2) + 'px;width:' + xBoxWidth + 'px;text-align:center;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
				}
			}
			
			// Add x2 labels.
			axis = a.x2;
			if (axis.options.showLabels && axis.used){
				for(i = 0; i < axis.ticks.length; ++i){
					tick = axis.ticks[i];
					if(!tick.label || tick.label.length == 0 || 
					    (this.plotOffset.left + this.tHoz(tick.v, axis) < 0) || 
					    (this.plotOffset.left + this.tHoz(tick.v, axis) > this.canvasWidth)) continue;
					html.push('<div style="position:absolute;top:' + (this.plotOffset.top - options.grid.labelMargin - axis.maxLabel.height) + 'px;left:' + (this.plotOffset.left + this.tHoz(tick.v, axis) - xBoxWidth/2) + 'px;width:' + xBoxWidth + 'px;text-align:center;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
				}
			}
			
			// Add y labels.
			axis = a.y;
			if (axis.options.showLabels){
				for(i = 0; i < axis.ticks.length; ++i){
					tick = axis.ticks[i];
					if (!tick.label || tick.label.length == 0 ||
							 (this.plotOffset.top + this.tVert(tick.v, axis) < 0) || 
							 (this.plotOffset.top + this.tVert(tick.v, axis) > this.canvasHeight)) continue;
					html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.tVert(tick.v, axis) - axis.maxLabel.height/2) + 'px;left:0;width:' + (this.plotOffset.left - options.grid.labelMargin) + 'px;text-align:right;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
				}
			}
			
			// Add y2 labels.
			axis = a.y2;
			if (axis.options.showLabels && axis.used){
				ctx.save();
				ctx.strokeStyle = axis.options.color || options.grid.color;
				ctx.beginPath();
				
				for(i = 0; i < axis.ticks.length; ++i){
					tick = axis.ticks[i];
					if (!tick.label || tick.label.length == 0 ||
							 (this.plotOffset.top + this.tVert(tick.v, axis) < 0) || 
							 (this.plotOffset.top + this.tVert(tick.v, axis) > this.canvasHeight)) continue;
					html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.tVert(tick.v, axis) - axis.maxLabel.height/2) + 'px;right:0;width:' + (this.plotOffset.right - options.grid.labelMargin) + 'px;text-align:left;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');

					ctx.moveTo(this.plotOffset.left + this.plotWidth - 8, this.plotOffset.top + this.tVert(tick.v, axis));
					ctx.lineTo(this.plotOffset.left + this.plotWidth,     this.plotOffset.top + this.tVert(tick.v, axis));
				}
				ctx.stroke();
				ctx.restore();
			}
			
			html.push('</div>');
			this.el.insert(html.join(''));
		}
	},
	/**
	 * Draws the title and the subtitle
	 */
	drawTitles: function(){
		var html,
		    options = this.options,
		    margin = options.grid.labelMargin,
		    ctx = this.ctx,
		    a = this.axes;
		
		if (!options.HtmlText && this.textEnabled) {
			var style = {
				size: options.fontSize,
				color: options.grid.color,
				halign: 'c'
			};
			
			// Add subtitle
			if (options.subtitle){
				ctx.drawText(
					options.subtitle,
					this.plotOffset.left + this.plotWidth/2, 
					this.titleHeight + this.subtitleHeight - 2,
					style
				);
			}
			
			style.weight = 1.5;
			style.size *= 1.5;
			
			// Add title
			if (options.title){
				ctx.drawText(
					options.title,
					this.plotOffset.left + this.plotWidth/2, 
					this.titleHeight - 2,
					style
				);
			}
			
			style.weight = 1.8;
			style.size *= 0.8;
			style.adjustAlign = true;
			
			// Add x axis title
			if (a.x.options.title && a.x.used){
				style.halign = 'c';
				style.valign = 't';
				style.angle = Flotr.toRad(a.x.options.titleAngle);
				ctx.drawText(
					a.x.options.title,
					this.plotOffset.left + this.plotWidth/2, 
					this.plotOffset.top + a.x.maxLabel.height + this.plotHeight + 2 * margin,
					style
				);
			}
			
			// Add x2 axis title
			if (a.x2.options.title && a.x2.used){
				style.halign = 'c';
				style.valign = 'b';
				style.angle = Flotr.toRad(a.x2.options.titleAngle);
				ctx.drawText(
					a.x2.options.title,
					this.plotOffset.left + this.plotWidth/2, 
					this.plotOffset.top - a.x2.maxLabel.height - 2 * margin,
					style
				);
			}
			
			// Add y axis title
			if (a.y.options.title && a.y.used){
				style.halign = 'r';
				style.valign = 'm';
				style.angle = Flotr.toRad(a.y.options.titleAngle);
				ctx.drawText(
					a.y.options.title,
					this.plotOffset.left - a.y.maxLabel.width - 2 * margin, 
					this.plotOffset.top + this.plotHeight / 2,
					style
				);
			}
			
			// Add y2 axis title
			if (a.y2.options.title && a.y2.used){
				style.halign = 'l';
				style.valign = 'm';
				style.angle = Flotr.toRad(a.y2.options.titleAngle);
				ctx.drawText(
					a.y2.options.title,
					this.plotOffset.left + this.plotWidth + a.y2.maxLabel.width + 2 * margin, 
					this.plotOffset.top + this.plotHeight / 2,
					style
				);
			}
		} 
		else {
			html = ['<div style="color:'+options.grid.color+';" class="flotr-titles">'];
			
			// Add title
			if (options.title)
				html.push('<div style="position:absolute;top:0;left:'+this.plotOffset.left+'px;font-size:1em;font-weight:bold;text-align:center;width:'+this.plotWidth+'px;" class="flotr-title">'+options.title+'</div>');
			
			// Add subtitle
			if (options.subtitle)
				html.push('<div style="position:absolute;top:'+this.titleHeight+'px;left:'+this.plotOffset.left+'px;font-size:smaller;text-align:center;width:'+this.plotWidth+'px;" class="flotr-subtitle">'+options.subtitle+'</div>');

			html.push('</div>');
			
			html.push('<div class="flotr-axis-title" style="font-weight:bold;">');
			
			// Add x axis title
			if (a.x.options.title && a.x.used)
				html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight + options.grid.labelMargin + a.x.titleSize.height) + 'px;left:' + this.plotOffset.left + 'px;width:' + this.plotWidth + 'px;text-align:center;" class="flotr-axis-title">' + a.x.options.title + '</div>');
			
			// Add x2 axis title
			if (a.x2.options.title && a.x2.used)
				html.push('<div style="position:absolute;top:0;left:' + this.plotOffset.left + 'px;width:' + this.plotWidth + 'px;text-align:center;" class="flotr-axis-title">' + a.x2.options.title + '</div>');
			
			// Add y axis title
			if (a.y.options.title && a.y.used)
				html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight/2 - a.y.titleSize.height/2) + 'px;left:0;text-align:right;" class="flotr-axis-title">' + a.y.options.title + '</div>');
			
			// Add y2 axis title
			if (a.y2.options.title && a.y2.used)
				html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight/2 - a.y.titleSize.height/2) + 'px;right:0;text-align:right;" class="flotr-axis-title">' + a.y2.options.title + '</div>');
			
			html.push('</div>');
			
			this.el.insert(html.join(''));
		}
	},
	/**
	 * Actually draws the graph.
	 * @param {Object} series - series to draw
	 */
	drawSeries: function(series){
		series = series || this.series;
		
		var drawn = false;
		for(var type in Flotr._registeredTypes){
			if(series[type] && series[type].show){
				this[Flotr._registeredTypes[type]](series);
				drawn = true;
			}
		}
		
		if(!drawn){
			this[Flotr._registeredTypes[this.options.defaultType]](series);
		}
	},
	
	plotLine: function(series, offset){
		var ctx = this.ctx,
		    xa = series.xaxis,
		    ya = series.yaxis,
  			tHoz = this.tHoz.bind(this),
  			tVert = this.tVert.bind(this),
  			data = series.data;
			
		if(data.length < 2) return;

		var prevx = tHoz(data[0][0], xa),
		    prevy = tVert(data[0][1], ya) + offset;

		ctx.beginPath();
		ctx.moveTo(prevx, prevy);
		for(var i = 0; i < data.length - 1; ++i){
			var x1 = data[i][0],   y1 = data[i][1],
			    x2 = data[i+1][0], y2 = data[i+1][1];

			// To allow empty values
			if (y1 === null || y2 === null) continue;
      
			/**
			 * Clip with ymin.
			 */
			if(y1 <= y2 && y1 < ya.min){
				/**
				 * Line segment is outside the drawing area.
				 */
				if(y2 < ya.min) continue;
				
				/**
				 * Compute new intersection point.
				 */
				x1 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
				y1 = ya.min;
			}
			else if(y2 <= y1 && y2 < ya.min){
				if(y1 < ya.min) continue;
				x2 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
				y2 = ya.min;
			}

			/**
			 * Clip with ymax.
			 */ 
			if(y1 >= y2 && y1 > ya.max) {
				if(y2 > ya.max) continue;
				x1 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
				y1 = ya.max;
			}
			else if(y2 >= y1 && y2 > ya.max){
				if(y1 > ya.max) continue;
				x2 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
				y2 = ya.max;
			}

			/**
			 * Clip with xmin.
			 */
			if(x1 <= x2 && x1 < xa.min){
				if(x2 < xa.min) continue;
				y1 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
				x1 = xa.min;
			}
			else if(x2 <= x1 && x2 < xa.min){
				if(x1 < xa.min) continue;
				y2 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
				x2 = xa.min;
			}

			/**
			 * Clip with xmax.
			 */
			if(x1 >= x2 && x1 > xa.max){
				if (x2 > xa.max) continue;
				y1 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
				x1 = xa.max;
			}
			else if(x2 >= x1 && x2 > xa.max){
				if(x1 > xa.max) continue;
				y2 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
				x2 = xa.max;
			}

			if(prevx != tHoz(x1, xa) || prevy != tVert(y1, ya) + offset)
				ctx.moveTo(tHoz(x1, xa), tVert(y1, ya) + offset);
			
			prevx = tHoz(x2, xa);
			prevy = tVert(y2, ya) + offset;
			ctx.lineTo(prevx, prevy);
		}
		ctx.stroke();
	},
	/**
	 * Function used to fill
	 * @param {Object} series - The series to draw
	 * @param {Object} offset
	 */
	plotLineArea: function(series, offset){
		var data = series.data;
		if(data.length < 2) return;

		var top, lastX = 0,
			ctx = this.ctx,
			xa = series.xaxis,
			ya = series.yaxis,
			tHoz = this.tHoz.bind(this),
			tVert = this.tVert.bind(this),
			bottom = Math.min(Math.max(0, ya.min), ya.max),
			first = true;
		
		ctx.beginPath();
		for(var i = 0; i < data.length - 1; ++i){
			
			var x1 = data[i][0], y1 = data[i][1],
			    x2 = data[i+1][0], y2 = data[i+1][1];
			
			if(x1 <= x2 && x1 < xa.min){
				if(x2 < xa.min) continue;
				y1 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
				x1 = xa.min;
			}
			else if(x2 <= x1 && x2 < xa.min){
				if(x1 < xa.min) continue;
				y2 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
				x2 = xa.min;
			}
								
			if(x1 >= x2 && x1 > xa.max){
				if(x2 > xa.max) continue;
				y1 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
				x1 = xa.max;
			}
			else if(x2 >= x1 && x2 > xa.max){
				if (x1 > xa.max) continue;
				y2 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
				x2 = xa.max;
			}

			if(first){
				ctx.moveTo(tHoz(x1, xa), tVert(bottom, ya) + offset);
				first = false;
			}
			
			/**
			 * Now check the case where both is outside.
			 */
			if(y1 >= ya.max && y2 >= ya.max){
				ctx.lineTo(tHoz(x1, xa), tVert(ya.max, ya) + offset);
				ctx.lineTo(tHoz(x2, xa), tVert(ya.max, ya) + offset);
				continue;
			}
			else if(y1 <= ya.min && y2 <= ya.min){
				ctx.lineTo(tHoz(x1, xa), tVert(ya.min, ya) + offset);
				ctx.lineTo(tHoz(x2, xa), tVert(ya.min, ya) + offset);
				continue;
			}
			
			/**
			 * Else it's a bit more complicated, there might
			 * be two rectangles and two triangles we need to fill
			 * in; to find these keep track of the current x values.
			 */
			var x1old = x1, x2old = x2;
			
			/**
			 * And clip the y values, without shortcutting.
			 * Clip with ymin.
			 */
			if(y1 <= y2 && y1 < ya.min && y2 >= ya.min){
				x1 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
				y1 = ya.min;
			}
			else if(y2 <= y1 && y2 < ya.min && y1 >= ya.min){
				x2 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
				y2 = ya.min;
			}

			/**
			 * Clip with ymax.
			 */
			if(y1 >= y2 && y1 > ya.max && y2 <= ya.max){
				x1 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
				y1 = ya.max;
			}
			else if(y2 >= y1 && y2 > ya.max && y1 <= ya.max){
				x2 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
				y2 = ya.max;
			}

			/**
			 * If the x value was changed we got a rectangle to fill.
			 */
			if(x1 != x1old){
				top = (y1 <= ya.min) ? top = ya.min : ya.max;
				ctx.lineTo(tHoz(x1old, xa), tVert(top, ya) + offset);
				ctx.lineTo(tHoz(x1, xa), tVert(top, ya) + offset);
			}
		   	
			/**
			 * Fill the triangles.
			 */
			ctx.lineTo(tHoz(x1, xa), tVert(y1, ya) + offset);
			ctx.lineTo(tHoz(x2, xa), tVert(y2, ya) + offset);

			/**
			 * Fill the other rectangle if it's there.
			 */
			if(x2 != x2old){
				top = (y2 <= ya.min) ? ya.min : ya.max;
				ctx.lineTo(tHoz(x2old, xa), tVert(top, ya) + offset);
				ctx.lineTo(tHoz(x2, xa), tVert(top, ya) + offset);
			}

			lastX = Math.max(x2, x2old);
		}
		
		ctx.lineTo(tHoz(lastX, xa), tVert(bottom, ya) + offset);
		ctx.closePath();
		ctx.fill();
	},
	/**
	 * Draws lines series in the canvas element.
	 * @param {Object} series - Series with options.lines.show = true.
	 */
	drawSeriesLines: function(series){
		series = series || this.series;
		var ctx = this.ctx;
		ctx.save();
		ctx.translate(this.plotOffset.left, this.plotOffset.top);
		ctx.lineJoin = 'round';

		var lw = series.lines.lineWidth;
		var sw = series.shadowSize;

		if(sw > 0){
			ctx.lineWidth = sw / 2;

			var offset = lw/2 + ctx.lineWidth/2;
			
			ctx.strokeStyle = "rgba(0,0,0,0.1)";
			this.plotLine(series, offset + sw/2);

			ctx.strokeStyle = "rgba(0,0,0,0.2)";
			this.plotLine(series, offset);

			if(series.lines.fill) {
				ctx.fillStyle = "rgba(0,0,0,0.05)";
				this.plotLineArea(series, offset + sw/2);
			}
		}

		ctx.lineWidth = lw;
		ctx.strokeStyle = series.color;
		if(series.lines.fill){
			ctx.fillStyle = series.lines.fillColor != null ? series.lines.fillColor : Flotr.parseColor(series.color).scale(null, null, null, series.lines.fillOpacity).toString();
			this.plotLineArea(series, 0);
		}

		this.plotLine(series, 0);
		ctx.restore();
	},
	/**
	 * Draws point series in the canvas element.
	 * @param {Object} series - Series with options.points.show = true.
	 */
	drawSeriesPoints: function(series) {
		var ctx = this.ctx;
		
		ctx.save();
		ctx.translate(this.plotOffset.left, this.plotOffset.top);

		var lw = series.lines.lineWidth;
		var sw = series.shadowSize;
		
		if(sw > 0){
			ctx.lineWidth = sw / 2;
      
			ctx.strokeStyle = 'rgba(0,0,0,0.1)';
			this.plotPointShadows(series, sw/2 + ctx.lineWidth/2, series.points.radius);

			ctx.strokeStyle = 'rgba(0,0,0,0.2)';
			this.plotPointShadows(series, ctx.lineWidth/2, series.points.radius);
		}

		ctx.lineWidth = series.points.lineWidth;
		ctx.strokeStyle = series.color;
		ctx.fillStyle = series.points.fillColor != null ? series.points.fillColor : series.color;
		this.plotPoints(series, series.points.radius, series.points.fill);
		ctx.restore();
	},
	plotPoints: function (series, radius, fill) {
		var xa = series.xaxis,
		    ya = series.yaxis,
		    ctx = this.ctx, i,
		    data = series.data;
			
		for(i = data.length - 1; i > -1; --i){
			var x = data[i][0], y = data[i][1];
			// To allow empty values
			if(y === null || x < xa.min || x > xa.max || y < ya.min || y > ya.max)
				continue;
			
			ctx.beginPath();
			ctx.arc(this.tHoz(x, xa), this.tVert(y, ya), radius, 0, 2 * Math.PI, true);
			if(fill) ctx.fill();
			ctx.stroke();
		}
	},
	plotPointShadows: function(series, offset, radius){
		var xa = series.xaxis,
		    ya = series.yaxis,
		    ctx = this.ctx, i,
		    data = series.data;
			
		for(i = data.length - 1; i > -1; --i){
			var x = data[i][0], y = data[i][1];
			if (y === null || x < xa.min || x > xa.max || y < ya.min || y > ya.max)
				continue;
			ctx.beginPath();
			ctx.arc(this.tHoz(x, xa), this.tVert(y, ya) + offset, radius, 0, Math.PI, false);
			ctx.stroke();
		}
	},
	/**
	 * Draws bar series in the canvas element.
	 * @param {Object} series - Series with options.bars.show = true.
	 */
	drawSeriesBars: function(series) {
		var ctx = this.ctx,
			bw = series.bars.barWidth,
			lw = Math.min(series.bars.lineWidth, bw);
		
		ctx.save();
		ctx.translate(this.plotOffset.left, this.plotOffset.top);
		ctx.lineJoin = 'miter';

		/**
		 * @todo linewidth not interpreted the right way.
		 */
		ctx.lineWidth = lw;
		ctx.strokeStyle = series.color;
    
		this.plotBarsShadows(series, bw, 0, series.bars.fill);

		if(series.bars.fill){
			var color = series.bars.fillColor || series.color;
			ctx.fillStyle = Flotr.parseColor(color).scale(null, null, null, series.bars.fillOpacity).toString();
		}
    
		this.plotBars(series, bw, 0, series.bars.fill);
		ctx.restore();
	},
	plotBars: function(series, barWidth, offset, fill){
		var data = series.data;
		if(data.length < 1) return;
		
		var xa = series.xaxis,
		    ya = series.yaxis,
		    ctx = this.ctx,
		    tHoz = this.tHoz.bind(this),
		    tVert = this.tVert.bind(this);

		for(var i = 0; i < data.length; i++){
			var x = data[i][0],
			    y = data[i][1],
				drawLeft = true, drawTop = true, drawRight = true;
			
			if (y === null) continue;
			
			// Stacked bars
			var stackOffset = 0;
			if(series.bars.stacked) {
				$H(xa.values).each(function(pair) {
					if (pair.key == x) {
						stackOffset = pair.value.stack || 0;
						pair.value.stack = stackOffset + y;
					}
				});
			}

			// @todo: fix horizontal bars support
			// Horizontal bars
			if(series.bars.horizontal)
				var left = stackOffset, right = x + stackOffset, bottom = y, top = y + barWidth;
			else 
				var left = x - (series.bars.centered ? barWidth/2 : 0), right = x + barWidth - (series.bars.centered ? barWidth/2 : 0), bottom = stackOffset, top = y + stackOffset;

			if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
				continue;

			if(left < xa.min){
				left = xa.min;
				drawLeft = false;
			}

			if(right > xa.max){
				right = xa.max;
				if (xa.lastSerie != series && series.bars.horizontal)
					drawTop = false;
			}

			if(bottom < ya.min)
				bottom = ya.min;

			if(top > ya.max){
				top = ya.max;
				if (ya.lastSerie != series && !series.bars.horizontal)
					drawTop = false;
			}
      
			/**
			 * Fill the bar.
			 */
			if(fill){
				ctx.beginPath();
				ctx.moveTo(tHoz(left, xa), tVert(bottom, ya) + offset);
				ctx.lineTo(tHoz(left, xa), tVert(top, ya) + offset);
				ctx.lineTo(tHoz(right, xa), tVert(top, ya) + offset);
				ctx.lineTo(tHoz(right, xa), tVert(bottom, ya) + offset);
				ctx.fill();
			}

			/**
			 * Draw bar outline/border.
			 */
			if(series.bars.lineWidth != 0 && (drawLeft || drawRight || drawTop)){
				ctx.beginPath();
				ctx.moveTo(tHoz(left, xa), tVert(bottom, ya) + offset);
				
				ctx[drawLeft ?'lineTo':'moveTo'](tHoz(left, xa), tVert(top, ya) + offset);
				ctx[drawTop  ?'lineTo':'moveTo'](tHoz(right, xa), tVert(top, ya) + offset);
				ctx[drawRight?'lineTo':'moveTo'](tHoz(right, xa), tVert(bottom, ya) + offset);
				         
				ctx.stroke();
			}
		}
	},
	plotBarsShadows: function(series, barWidth, offset){
		var data = series.data;
		if(data.length < 1) return;
		
		var xa = series.xaxis,
		    ya = series.yaxis,
		    ctx = this.ctx,
		    tHoz = this.tHoz.bind(this),
		    tVert = this.tVert.bind(this),
		    sw = this.options.shadowSize;
		
		for(var i = 0; i < data.length; i++){
			var x = data[i][0],
			    y = data[i][1];
				
			if (y === null) continue;
			
			// Stacked bars
			var stackOffset = 0;
			if(series.bars.stacked) {
				$H(xa.values).each(function(pair) {
					if (pair.key == x) {
						stackOffset = pair.value.stackShadow || 0;
						pair.value.stackShadow = stackOffset + y;
					}
				});
			}
			
			// Horizontal bars
			if(series.bars.horizontal) 
				var left = stackOffset, right = x + stackOffset, bottom = y, top = y + barWidth;
			else 
				var left = x - (series.bars.centered ? barWidth/2 : 0), right = x + barWidth - (series.bars.centered ? barWidth/2 : 0), bottom = stackOffset, top = y + stackOffset;
			
			if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
				continue;
			
			if(left < xa.min)   left = xa.min;
			if(right > xa.max)  right = xa.max;
			if(bottom < ya.min) bottom = ya.min;
			if(top > ya.max)    top = ya.max;
			
			var width =  tHoz(right, xa)-tHoz(left, xa)-((tHoz(right, xa)+sw <= this.plotWidth) ? 0 : sw);
			var height = Math.max(0, tVert(bottom, ya)-tVert(top, ya)-((tVert(bottom, ya)+sw <= this.plotHeight) ? 0 : sw));
			
			ctx.fillStyle = 'rgba(0,0,0,0.05)';
			ctx.fillRect(Math.min(tHoz(left, xa)+sw, this.plotWidth), Math.min(tVert(top, ya)+sw, this.plotWidth), width, height);
		}
	},
	/**
	 * Draws candles series in the canvas element.
	 * @param {Object} series - Series with options.candles.show = true.
	 */
	drawSeriesCandles: function(series) {
		var ctx = this.ctx,
			  bw = series.candles.candleWidth;
		
		ctx.save();
		ctx.translate(this.plotOffset.left, this.plotOffset.top);
		ctx.lineJoin = 'miter';

		/**
		 * @todo linewidth not interpreted the right way.
		 */
		ctx.lineWidth = series.candles.lineWidth;
		this.plotCandlesShadows(series, bw/2);
		this.plotCandles(series, bw/2);
		
		ctx.restore();
	},
	plotCandles: function(series, offset){
		var data = series.data;
		if(data.length < 1) return;
		
		var xa = series.xaxis,
		    ya = series.yaxis,
		    ctx = this.ctx,
		    tHoz = this.tHoz.bind(this),
		    tVert = this.tVert.bind(this);

		for(var i = 0; i < data.length; i++){
			var d     = data[i],
			    x     = d[0],
			    open  = d[1],
			    high  = d[2],
			    low   = d[3],
			    close = d[4];

			var left    = x - series.candles.candleWidth/2,
			    right   = x + series.candles.candleWidth/2,
			    bottom  = Math.max(ya.min, low),
			    top     = Math.min(ya.max, high),
			    bottom2 = Math.max(ya.min, Math.min(open, close)),
			    top2    = Math.min(ya.max, Math.max(open, close));

			if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
				continue;

			var color = series.candles[open>close?'downFillColor':'upFillColor'];
			/**
			 * Fill the candle.
			 */
			if(series.candles.fill && !series.candles.barcharts){
				ctx.fillStyle = Flotr.parseColor(color).scale(null, null, null, series.candles.fillOpacity).toString();
				ctx.fillRect(tHoz(left, xa), tVert(top2, ya) + offset, tHoz(right, xa) - tHoz(left, xa), tVert(bottom2, ya) - tVert(top2, ya));
			}

			/**
			 * Draw candle outline/border, high, low.
			 */
			if(series.candles.lineWidth || series.candles.wickLineWidth){
				var x, y, pixelOffset = (series.candles.wickLineWidth % 2) / 2;

				x = Math.floor(tHoz((left + right) / 2), xa) + pixelOffset;
				
				ctx.save();
				ctx.strokeStyle = color;
				ctx.lineWidth = series.candles.wickLineWidth;
				ctx.lineCap = 'butt';
			  
				if (series.candles.barcharts) {
					ctx.beginPath();
					
					ctx.moveTo(x, Math.floor(tVert(top, ya) + offset));
					ctx.lineTo(x, Math.floor(tVert(bottom, ya) + offset));
					
					y = Math.floor(tVert(open, ya) + offset)+0.5;
					ctx.moveTo(Math.floor(tHoz(left, xa))+pixelOffset, y);
					ctx.lineTo(x, y);
					
					y = Math.floor(tVert(close, ya) + offset)+0.5;
					ctx.moveTo(Math.floor(tHoz(right, xa))+pixelOffset, y);
					ctx.lineTo(x, y);
				} 
				else {
					ctx.strokeRect(tHoz(left, xa), tVert(top2, ya) + offset, tHoz(right, xa) - tHoz(left, xa), tVert(bottom2, ya) - tVert(top2, ya));
					
					ctx.beginPath();
					ctx.moveTo(x, Math.floor(tVert(top2,    ya) + offset));
					ctx.lineTo(x, Math.floor(tVert(top,     ya) + offset));
					ctx.moveTo(x, Math.floor(tVert(bottom2, ya) + offset));
					ctx.lineTo(x, Math.floor(tVert(bottom,  ya) + offset));
				}
				
				ctx.stroke();
				ctx.restore();
			}
		}
	},
	plotCandlesShadows: function(series, offset){
		var data = series.data;
		if(data.length < 1 || series.candles.barcharts) return;
		
		var xa = series.xaxis,
		    ya = series.yaxis,
		    tHoz = this.tHoz.bind(this),
		    tVert = this.tVert.bind(this),
		    sw = this.options.shadowSize;
		
		for(var i = 0; i < data.length; i++){
			var d     = data[i],
			    x     = d[0],
			    open  = d[1],
			    high  = d[2],
			    low   = d[3],
			    close = d[4];
			
			var left   = x - series.candles.candleWidth/2,
			    right  = x + series.candles.candleWidth/2,
			    bottom = Math.max(ya.min, Math.min(open, close)),
			    top    = Math.min(ya.max, Math.max(open, close));
			
			if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
				continue;
			
			var width =  tHoz(right, xa)-tHoz(left, xa)-((tHoz(right, xa)+sw <= this.plotWidth) ? 0 : sw);
			var height = Math.max(0, tVert(bottom, ya)-tVert(top, ya)-((tVert(bottom, ya)+sw <= this.plotHeight) ? 0 : sw));
			
			this.ctx.fillStyle = 'rgba(0,0,0,0.05)';
			this.ctx.fillRect(Math.min(tHoz(left, xa)+sw, this.plotWidth), Math.min(tVert(top, ya)+sw, this.plotWidth), width, height);
		}
	},
	/**
	 * Draws a pie in the canvas element.
	 * @param {Object} series - Series with options.pie.show = true.
	 */
	drawSeriesPie: function(series) {
		if (this.options.pie.drawn) return;
		
		var ctx = this.ctx,
		    options = this.options,
		    lw = series.pie.lineWidth,
		    sw = series.shadowSize,
		    data = series.data,
		    plotOffset = this.plotOffset,
		    radius = (Math.min(this.canvasWidth, this.canvasHeight) * series.pie.sizeRatio) / 2,
		    html = [],
			vScale = 1,//Math.cos(series.pie.viewAngle);
			plotTickness = Math.sin(series.pie.viewAngle)*series.pie.spliceThickness / vScale,
		
		style = {
			size: options.fontSize*1.2,
			color: options.grid.color,
			weight: 1.5
		},
		
		center = {
			x: plotOffset.left + (this.plotWidth)/2,
			y: plotOffset.top + (this.plotHeight)/2
		},
		
		// Pie portions
		portions = this.series.collect(function(hash, index){
			if (hash.pie.show && hash.data[0][1] !== null)
				return {
					name: (hash.label || hash.data[0][1]),
					value: [index, hash.data[0][1]],
					options: hash.pie,
					series: hash
				};
		}),
		
		// Sum of the portions' angles
		sum = portions.pluck('value').pluck(1).inject(0, function(acc, n) { return acc + n; }),
		fraction = 0.0,
		angle = series.pie.startAngle,
		value = 0.0;
		
		var slices = portions.collect(function(slice){
			angle += fraction;
			value = parseFloat(slice.value[1]); // @warning : won't support null values !!
			fraction = value/sum;
			return {
				name:     slice.name,
				fraction: fraction,
				x:        slice.value[0],
				y:        value,
				options:  slice.options,
				series:   slice.series,
				startAngle: 2 * angle * Math.PI,
				endAngle:   2 * (angle + fraction) * Math.PI
			};
		});
		
		ctx.save();
		
		if(sw > 0){
			slices.each(function (slice) {
				if (slice.startAngle == slice.endAngle) return;
				
				var bisection = (slice.startAngle + slice.endAngle) / 2,
				    xOffset = center.x + Math.cos(bisection) * slice.options.explode + sw,
				    yOffset = center.y + Math.sin(bisection) * slice.options.explode + sw;
				
				this.plotSlice(xOffset, yOffset, radius, slice.startAngle, slice.endAngle, false, vScale);
				
				if (series.pie.fill) {
					ctx.fillStyle = 'rgba(0,0,0,0.1)';
					ctx.fill();
				}
			}, this);
		}
		
		if (options.HtmlText || !this.textEnabled)
			html = ['<div style="color:' + this.options.grid.color + '" class="flotr-labels">'];
		
		slices.each(function (slice, index) {
			if (slice.startAngle == slice.endAngle) return;
			
			var bisection = (slice.startAngle + slice.endAngle) / 2,
			    color = slice.series.color,
			    fillColor = slice.options.fillColor || color,
				xOffset = center.x + Math.cos(bisection) * slice.options.explode,
				yOffset = center.y + Math.sin(bisection) * slice.options.explode;
			
			this.plotSlice(xOffset, yOffset, radius, slice.startAngle, slice.endAngle, false, vScale);
			
			if(series.pie.fill){
				ctx.fillStyle = Flotr.parseColor(fillColor).scale(null, null, null, series.pie.fillOpacity).toString();
				ctx.fill();
			}
			ctx.lineWidth = lw;
			ctx.strokeStyle = color;
			ctx.stroke();
			
			var label = options.pie.labelFormatter(slice),
			    textAlignRight = (Math.cos(bisection) < 0),
			    distX = xOffset + Math.cos(bisection) * (series.pie.explode + radius),
				distY = yOffset + Math.sin(bisection) * (series.pie.explode + radius);
			
			if (slice.fraction && label) {
				if (options.HtmlText || !this.textEnabled) {
					var divStyle = 'position:absolute;top:' + (distY - 5) + 'px;'; //@todo: change
					if (textAlignRight)
						divStyle += 'right:'+(this.canvasWidth - distX)+'px;text-align:right;';
					else 
						divStyle += 'left:'+distX+'px;text-align:left;';
					html.push('<div style="' + divStyle + '" class="flotr-grid-label">' + label + '</div>');
				}
				else {
					style.halign = textAlignRight ? 'r' : 'l';
					ctx.drawText(
						label, 
						distX, 
						distY + style.size / 2, 
						style
					);
				}
			}
		}, this);
		
		if (options.HtmlText || !this.textEnabled) {
			html.push('</div>');    
			this.el.insert(html.join(''));
		}
		
		ctx.restore();
		options.pie.drawn = true;
	},
	plotSlice: function(x, y, radius, startAngle, endAngle, fill, vScale) {
		var ctx = this.ctx;
		vScale = vScale || 1;

		ctx.scale(1, vScale);
		ctx.beginPath();
		ctx.moveTo(x, y);
		ctx.arc   (x, y, radius, startAngle, endAngle, fill);
		ctx.lineTo(x, y);
		ctx.closePath();
	},
	/**
	 * Adds a legend div to the canvas container or draws it on the canvas.
	 */
	insertLegend: function(){
		if(!this.options.legend.show)
			return;
			
		var series = this.series,
			plotOffset = this.plotOffset,
			options = this.options,
			fragments = [],
			rowStarted = false, 
			ctx = this.ctx,
			i;
			
		var noLegendItems = series.findAll(function(s) {return (s.label && !s.hide)}).size();

		if (noLegendItems) {
		    if (!options.HtmlText && this.textEnabled) {
				var style = {
					size: options.fontSize*1.1,
					color: options.grid.color
				};
				
				// @todo: take css into account
				//var dummyDiv = this.el.insert('<div class="flotr-legend" style="position:absolute;top:-10000px;"></div>');
				
				var p = options.legend.position, 
				    m = options.legend.margin,
				    lbw = options.legend.labelBoxWidth,
				    lbh = options.legend.labelBoxHeight,
				    lbm = options.legend.labelBoxMargin,
				    offsetX = plotOffset.left + m,
				    offsetY = plotOffset.top + m;
				
				// We calculate the labels' max width
				var labelMaxWidth = 0;
				for(i = series.length - 1; i > -1; --i){
					if(!series[i].label || series[i].hide) continue;
					var label = options.legend.labelFormatter(series[i].label);	
					labelMaxWidth = Math.max(labelMaxWidth, ctx.measureText(label, style));
				}
				
				var legendWidth  = Math.round(lbw + lbm*3 + labelMaxWidth),
				    legendHeight = Math.round(noLegendItems*(lbm+lbh) + lbm);
				
				if(p.charAt(0) == 's') offsetY = plotOffset.top + this.plotHeight - (m + legendHeight);
				if(p.charAt(1) == 'e') offsetX = plotOffset.left + this.plotWidth - (m + legendWidth);
				
				// Legend box
				var color = Flotr.parseColor(options.legend.backgroundColor || 'rgb(240,240,240)').scale(null, null, null, options.legend.backgroundOpacity || 0.1).toString();
				
				ctx.fillStyle = color;
				ctx.fillRect(offsetX, offsetY, legendWidth, legendHeight);
				ctx.strokeStyle = options.legend.labelBoxBorderColor;
				ctx.strokeRect(Flotr.toPixel(offsetX), Flotr.toPixel(offsetY), legendWidth, legendHeight);
				
				// Legend labels
				var x = offsetX + lbm;
				var y = offsetY + lbm;
				for(i = 0; i < series.length; i++){
					if(!series[i].label || series[i].hide) continue;
					var label = options.legend.labelFormatter(series[i].label);
					
					ctx.fillStyle = series[i].color;
					ctx.fillRect(x, y, lbw-1, lbh-1);
					
					ctx.strokeStyle = options.legend.labelBoxBorderColor;
					ctx.lineWidth = 1;
					ctx.strokeRect(Math.ceil(x)-1.5, Math.ceil(y)-1.5, lbw+2, lbh+2);
					
					// Legend text
					ctx.drawText(
						label,
						x + lbw + lbm,
						y + (lbh + style.size - ctx.fontDescent(style))/2,
						style
					);
					
					y += lbh + lbm;
				}
		    }
		    else {
		  		for(i = 0; i < series.length; ++i){
		  			if(!series[i].label || series[i].hide) continue;
		  			
		  			if(i % options.legend.noColumns == 0){
		  				fragments.push(rowStarted ? '</tr><tr>' : '<tr>');
		  				rowStarted = true;
		  			}
		  
		  			var legend = options.legend,
		  			    s = series[i],
		  			    label = legend.labelFormatter(s.label),
		  			    boxWidth = legend.labelBoxWidth,
		  			    boxHeight = legend.labelBoxHeight,
		  			    opacity = 'opacity:' + s.bars.fillOpacity + ';filter:alpha(opacity=' + s.bars.fillOpacity + ');',
		  			    color = 'background-color:' + ((s.bars.show && s.bars.fillColor && s.bars.fill) ? s.bars.fillColor : s.color) + ';';
		  			
					fragments.push(
						'<td class="flotr-legend-color-box">',
							'<div style="border:1px solid ', legend.labelBoxBorderColor, ';padding:1px">',
								'<div style="width:', (boxWidth-1), 'px;height:', (boxHeight-1), 'px;border:1px solid ', series[i].color, '">', 
									'<div style="width:', boxWidth, 'px;height:', boxHeight, 'px;', opacity, color, '"></div>',
								'</div>',
							'</div>',
						'</td>',
						'<td class="flotr-legend-label">', label, '</td>'
					);
		  		}
		  		if(rowStarted) fragments.push('</tr>');
		  		
		  		if(fragments.length > 0){
		  			var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
		  			if(options.legend.container != null){
		  				$(options.legend.container).update(table);
		  			}
					else {
		  				var pos = '', p = options.legend.position, m = options.legend.margin;
		  				
		  				     if(p.charAt(0) == 'n') pos += 'top:' + (m + plotOffset.top) + 'px;';
		  				else if(p.charAt(0) == 's') pos += 'bottom:' + (m + plotOffset.bottom) + 'px;';					
		  				     if(p.charAt(1) == 'e') pos += 'right:' + (m + plotOffset.right) + 'px;';
		  				else if(p.charAt(1) == 'w') pos += 'left:' + (m + plotOffset.left) + 'px;';
		  				     
		  				var div = this.el.insert('<div class="flotr-legend" style="position:absolute;z-index:2;' + pos +'">' + table + '</div>').select('div.flotr-legend').first();
		  				
		  				if(options.legend.backgroundOpacity != 0.0){
		  					/**
		  					 * Put in the transparent background separately to avoid blended labels and
		  					 * label boxes.
		  					 */
		  					var c = options.legend.backgroundColor;
		  					if(c == null){
		  						var tmp = (options.grid.backgroundColor != null) ? options.grid.backgroundColor : Flotr.extractColor(div);
		  						c = Flotr.parseColor(tmp).adjust(null, null, null, 1).toString();
		  					}
		  					this.el.insert('<div class="flotr-legend-bg" style="position:absolute;width:' + div.getWidth() + 'px;height:' + div.getHeight() + 'px;' + pos +'background-color:' + c + ';"> </div>').select('div.flotr-legend-bg').first().setStyle({
		  						'opacity': options.legend.backgroundOpacity
		  					});						
		  				}
		  			}
		  		}
		    }
	    }
	},
	/**
	 * Calculates the coordinates from a mouse event object.
	 * @param {Event} event - Mouse Event object.
	 * @return {Object} Object with coordinates of the mouse.
	 */
	getEventPosition: function (event){
		var offset = this.overlay.cumulativeOffset(),
			rx = (event.pageX - offset.left - this.plotOffset.left),
			ry = (event.pageY - offset.top - this.plotOffset.top),
			ax = 0, ay = 0;
			
		if(event.pageX == null && event.clientX != null){
			var de = document.documentElement, b = document.body;
			ax = event.clientX + (de && de.scrollLeft || b.scrollLeft || 0);
			ay = event.clientY + (de && de.scrollTop || b.scrollTop || 0);
		}else{
			ax = event.pageX;
			ay = event.pageY;
		}
		
		return {
			x:  this.axes.x.min  + rx / this.axes.x.scale,
			x2: this.axes.x2.min + rx / this.axes.x2.scale,
			y:  this.axes.y.max  - ry / this.axes.y.scale,
			y2: this.axes.y2.max - ry / this.axes.y2.scale,
			relX: rx,
			relY: ry,
			absX: ax,
			absY: ay
		};
	},
	/**
	 * Observes the 'click' event and fires the 'flotr:click' event.
	 * @param {Event} event - 'click' Event object.
	 */
	clickHandler: function(event){
		if(this.ignoreClick){
			this.ignoreClick = false;
			return;
		}
		this.el.fire('flotr:click', [this.getEventPosition(event), this]);
	},
	/**
	 * Observes mouse movement over the graph area. Fires the 'flotr:mousemove' event.
	 * @param {Event} event - 'mousemove' Event object.
	 */
	mouseMoveHandler: function(event){
 		var pos = this.getEventPosition(event);
    
		this.lastMousePos.pageX = pos.absX;
		this.lastMousePos.pageY = pos.absY;	
    	
    	//@todo Add another overlay for the crosshair
		if (this.options.crosshair.mode)
			this.clearCrosshair();
			
		if(this.selectionInterval == null && (this.options.mouse.track || this.series.any(function(s){return s.mouse && s.mouse.track;})))
			this.hit(pos);
		
		if (this.options.crosshair.mode)
			this.drawCrosshair(pos);
    
		this.el.fire('flotr:mousemove', [event, pos, this]);
	},
	/**
	 * Observes the 'mousedown' event.
	 * @param {Event} event - 'mousedown' Event object.
	 */
	mouseDownHandler: function (event){
		if(event.isRightClick()) {
			event.stop();
			var overlay = this.overlay;
			
			overlay.hide();
			
			function cancelContextMenu () {
				overlay.show();
				$(document).stopObserving('mousemove', cancelContextMenu);
			}
			$(document).observe('mousemove', cancelContextMenu);
			return;
		}
    
		if(!this.options.selection.mode || !event.isLeftClick()) return;
		
		this.setSelectionPos(this.selection.first, event);				
		if(this.selectionInterval != null){
			clearInterval(this.selectionInterval);
		}
		this.lastMousePos.pageX = null;
		this.selectionInterval = setInterval(this.updateSelection.bind(this), 1000/this.options.selection.fps);
		
		this.mouseUpHandler = this.mouseUpHandler.bind(this);
		$(document).observe('mouseup', this.mouseUpHandler);
	},
	/**
	 * Fires the 'flotr:select' event when the user made a selection.
	 */
	fireSelectEvent: function(){
		var a = this.axes, selection = this.selection,
			x1 = (selection.first.x <= selection.second.x) ? selection.first.x : selection.second.x,
			x2 = (selection.first.x <= selection.second.x) ? selection.second.x : selection.first.x,
			y1 = (selection.first.y >= selection.second.y) ? selection.first.y : selection.second.y,
			y2 = (selection.first.y >= selection.second.y) ? selection.second.y : selection.first.y;
		
		x1 = a.x.min + x1 / a.x.scale;
		x2 = a.x.min + x2 / a.x.scale;
		y1 = a.y.max - y1 / a.y.scale;
		y2 = a.y.max - y2 / a.y.scale;

		this.el.fire('flotr:select', [{x1:x1, y1:y1, x2:x2, y2:y2}, this]);
	},
	/**
	 * Observes the mouseup event for the document. 
	 * @param {Event} event - 'mouseup' Event object.
	 */
	mouseUpHandler: function(event){
		$(document).stopObserving('mouseup', this.mouseUpHandler);
		event.stop();
    
		if(this.selectionInterval != null){
			clearInterval(this.selectionInterval);
			this.selectionInterval = null;
		}

		this.setSelectionPos(this.selection.second, event);
		this.clearSelection();
		
		if(this.selectionIsSane()){
			this.drawSelection();
			this.fireSelectEvent();
			this.ignoreClick = true;
		}
	},
	/**
	 * Calculates the position of the selection.
	 * @param {Object} pos - Position object.
	 * @param {Event} event - Event object.
	 */
	setSelectionPos: function(pos, event) {
		var options = this.options,
		    offset = $(this.overlay).cumulativeOffset();
		
		if(options.selection.mode.indexOf('x') == -1){
			pos.x = (pos == this.selection.first) ? 0 : this.plotWidth;			   
		}else{
			pos.x = event.pageX - offset.left - this.plotOffset.left;
			pos.x = Math.min(Math.max(0, pos.x), this.plotWidth);
		}

		if (options.selection.mode.indexOf('y') == -1){
			pos.y = (pos == this.selection.first) ? 0 : this.plotHeight;
		}else{
			pos.y = event.pageY - offset.top - this.plotOffset.top;
			pos.y = Math.min(Math.max(0, pos.y), this.plotHeight);
		}
	},
	/**
	 * Updates (draws) the selection box.
	 */
	updateSelection: function(){
		if(this.lastMousePos.pageX == null) return;
		
		this.setSelectionPos(this.selection.second, this.lastMousePos);
		this.clearSelection();
		
		if(this.selectionIsSane()) this.drawSelection();
	},
	/**
	 * Removes the selection box from the overlay canvas.
	 */
	clearSelection: function() {
		if(this.prevSelection == null) return;
			
		var prevSelection = this.prevSelection,
			lw = this.octx.lineWidth,
			plotOffset = this.plotOffset,
			x = Math.min(prevSelection.first.x, prevSelection.second.x),
			y = Math.min(prevSelection.first.y, prevSelection.second.y),
			w = Math.abs(prevSelection.second.x - prevSelection.first.x),
			h = Math.abs(prevSelection.second.y - prevSelection.first.y);
		
		this.octx.clearRect(x + plotOffset.left - lw/2+0.5,
		                    y + plotOffset.top - lw/2+0.5,
		                    w + lw,
		                    h + lw);
		
		this.prevSelection = null;
	},
	/**
	 * Allows the user the manually select an area.
	 * @param {Object} area - Object with coordinates to select.
	 */
	setSelection: function(area){
		var options = this.options,
			xa = this.axes.x,
			ya = this.axes.y,
			vertScale = ya.scale,
			hozScale = xa.scale,
			selX = options.selection.mode.indexOf('x') != -1,
			selY = options.selection.mode.indexOf('y') != -1;
		
		this.clearSelection();

		this.selection.first.y  = selX ? 0 : (ya.max - area.y1) * vertScale;
		this.selection.second.y = selX ? this.plotHeight : (ya.max - area.y2) * vertScale;			
		this.selection.first.x  = selY ? 0 : (area.x1 - xa.min) * hozScale;
		this.selection.second.x = selY ? this.plotWidth : (area.x2 - xa.min) * hozScale;
		
		this.drawSelection();
		this.fireSelectEvent();
	},
	/**
	 * Draws the selection box.
	 */
	drawSelection: function() {
		var prevSelection = this.prevSelection,
			selection = this.selection,
			octx = this.octx,
			options = this.options,
			plotOffset = this.plotOffset;
		
		if(prevSelection != null &&
			selection.first.x == prevSelection.first.x &&
			selection.first.y == prevSelection.first.y && 
			selection.second.x == prevSelection.second.x &&
			selection.second.y == prevSelection.second.y)
			return;
		
		octx.save();
		octx.strokeStyle = Flotr.parseColor(options.selection.color).scale(null, null, null, 0.8).toString();
		octx.lineWidth = 1;
		octx.lineJoin = 'miter';
		octx.fillStyle = Flotr.parseColor(options.selection.color).scale(null, null, null, 0.4).toString();

		this.prevSelection = {
			first: { x: selection.first.x, y: selection.first.y },
			second: { x: selection.second.x, y: selection.second.y }
		};

		var x = Math.min(selection.first.x, selection.second.x),
		    y = Math.min(selection.first.y, selection.second.y),
		    w = Math.abs(selection.second.x - selection.first.x),
		    h = Math.abs(selection.second.y - selection.first.y);
		
		octx.fillRect(x + plotOffset.left+0.5, y + plotOffset.top+0.5, w, h);
		octx.strokeRect(x + plotOffset.left+0.5, y + plotOffset.top+0.5, w, h);
		octx.restore();
	},
	/**	 
	 * Draws the selection box.
	 */
	drawCrosshair: function(pos) {
		var octx = this.octx,
			options = this.options,
			plotOffset = this.plotOffset,
			x = plotOffset.left+pos.relX+0.5,
			y = plotOffset.top+pos.relY+0.5,
			modeX = options.crosshair.mode.indexOf('x') != -1,
			modeY = options.crosshair.mode.indexOf('y') != -1;
		
		if (pos.relX < 0 || pos.relY < 0 || pos.relX > this.plotWidth || pos.relY > this.plotHeight) {
			this.el.style.cursor = null;
			this.el.removeClassName('flotr-crosshair');
			return; 
		}
		
		this.lastMousePos.relX = null;
		this.lastMousePos.relY = null;
		
		if (options.crosshair.hideCursor) {
			this.el.style.cursor = 'url(blank.cur), crosshair';
			this.el.addClassName('flotr-crosshair');
		}
		
		octx.save();
		octx.strokeStyle = options.crosshair.color;
		octx.lineWidth = 1;
		octx.beginPath();
		
		if (modeX) {
			octx.moveTo(x, plotOffset.top);
			octx.lineTo(x, plotOffset.top + this.plotHeight);
			this.lastMousePos.relX = x;
		}
		
		if (modeY) {
			octx.moveTo(plotOffset.left, y);
			octx.lineTo(plotOffset.left + this.plotWidth, y);
			this.lastMousePos.relY = y;
		}
		
		octx.stroke();
		octx.restore();
	},
	/**
	 * Removes the selection box from the overlay canvas.
	 */
	clearCrosshair: function() {
		if (this.lastMousePos.relX != null)
		this.octx.clearRect(this.lastMousePos.relX-0.5,
		                    this.plotOffset.top,
		                    1,
		                    this.plotHeight+1);
							
		if (this.lastMousePos.relY != null)
		this.octx.clearRect(this.plotOffset.left,
		                    this.lastMousePos.relY-0.5,
		                    this.plotWidth+1,
		                    1);		
	},
	/**
	 * Determines whether or not the selection is sane and should be drawn.
	 * @return {Boolean} - True when sane, false otherwise.
	 */
	selectionIsSane: function(){
		return Math.abs(this.selection.second.x - this.selection.first.x) >= 5 &&
		       Math.abs(this.selection.second.y - this.selection.first.y) >= 5;
	},
	/**
	 * Removes the mouse tracking point from the overlay.
	 */
	clearHit: function(){
		if(!this.prevHit) return;
    
		var prevHit = this.prevHit,
		    plotOffset = this.plotOffset,
		    s = prevHit.series,
		    lw = s.bars.lineWidth;
				
		if(!s.bars.show){
			var r = s.points.radius;
			this.octx.clearRect(
				this.tHoz(prevHit.x, prevHit.xaxis) + plotOffset.left - r*2,
				this.tVert(prevHit.y, prevHit.yaxis) + plotOffset.top - r*2,
				r*3 + s.points.lineWidth*3, 
				r*3 + s.points.lineWidth*3
			);
		}

		else {
			var bw = s.bars.barWidth;
			this.octx.clearRect(
				this.tHoz(prevHit.x - bw/2, prevHit.xaxis) + plotOffset.left - lw, 
				this.tVert(prevHit.y, prevHit.yaxis) + plotOffset.top - lw, 
				this.tHoz(bw, prevHit.xaxis) + lw * 2, 
				this.tVert(0, prevHit.yaxis) + lw * 2
			);
		}
	},
	/**
	 * Updates the mouse tracking point on the overlay.
	 */
	drawHit: function(n){
		var octx = this.octx,
		    s = n.series,
		    tHoz = this.tHoz.bind(this),
		    tVert = this.tVert.bind(this);

		if(s.mouse.lineColor != null){
			octx.save();
			octx.lineWidth = s.points.lineWidth;
			octx.strokeStyle = s.mouse.lineColor;
      octx.fillStyle = Flotr.parseColor(s.mouse.fillColor || '#ffffff').scale(null,null,null, s.mouse.fillOpacity).toString();
      
			if(!s.bars.show){
				octx.translate(this.plotOffset.left, this.plotOffset.top);
				octx.beginPath();
				octx.arc(tHoz(n.x, n.xaxis), tVert(n.y, n.yaxis), s.mouse.radius, 0, 2 * Math.PI, true);
				octx.fill();
				octx.stroke();
			}

			else {
				var bw = s.bars.barWidth;
				
				octx.save();
				octx.translate(this.plotOffset.left, this.plotOffset.top);
				octx.beginPath();
				octx.moveTo(tHoz(n.x-(bw/2), n.xaxis), tVert(n.yaxis.min, n.yaxis));
				octx.lineTo(tHoz(n.x-(bw/2), n.xaxis), tVert(n.y, n.yaxis));
				octx.lineTo(tHoz(n.x+(bw/2), n.xaxis), tVert(n.y, n.yaxis));
				octx.lineTo(tHoz(n.x+(bw/2), n.xaxis), tVert(n.yaxis.min, n.yaxis));
				octx.stroke();
				octx.closePath();
				
				if(s.mouse.fillColor){ 
					octx.beginPath();
					octx.moveTo(tHoz(n.x-(bw/2), n.xaxis), tVert(n.yaxis.min, n.yaxis));
					octx.lineTo(tHoz(n.x-(bw/2), n.xaxis), tVert(n.y, n.yaxis));
					octx.lineTo(tHoz(n.x+(bw/2), n.xaxis), tVert(n.y, n.yaxis));
					octx.lineTo(tHoz(n.x+(bw/2), n.xaxis), tVert(n.yaxis.min, n.yaxis));
					octx.fill();
					octx.closePath();
				}
        
				octx.restore();
			}
			octx.restore();
		}
		this.prevHit = n;
	},
	/**
	 * Retrieves the nearest data point from the mouse cursor. If it's within
	 * a certain range, draw a point on the overlay canvas and display the x and y
	 * value of the data.
	 * @param {Object} mouse - Object that holds the relative x and y coordinates of the cursor.
	 */
	hit: function(mouse){
		var series = this.series,
			options = this.options,
			prevHit = this.prevHit,
			plotOffset = this.plotOffset,
			octx = this.octx, 
			data, xsens, ysens, x, y, xa, ya, mx, my, 
			/**
			 * Nearest data element.
			 */
			i, n = {
				dist:Number.MAX_VALUE,
				x:null,
				y:null,
				relX:mouse.relX,
				relY:mouse.relY,
				absX:mouse.absX,
				absY:mouse.absY,
				mouse:null,
				xaxis:null,
				yaxis:null,
				series:null,
				index:null
			};
		
		for(i = 0; i < series.length; i++){
			s = series[i];
			if(!s.mouse.track) continue;
			data = s.data;
			xa = s.xaxis;
			ya = s.yaxis;
			xsens = (2*options.points.lineWidth)/xa.scale * s.mouse.sensibility;
			ysens = (2*options.points.lineWidth)/ya.scale * s.mouse.sensibility;
			mx =  mouse.relX/xa.scale + xa.min;
			my = -mouse.relY/ya.scale + ya.max;
			
			for(var j = 0, xpow, ypow; j < data.length; j++){
				x = data[j][0];
				y = data[j][1];
				
				if (y === null || 
				    xa.min > x || xa.max < x || 
				    ya.min > y || ya.max < y) continue;
				
				var xdiff = Math.abs(x - mx),
				    ydiff = Math.abs(y - my);
				
				// we use a different set of criteria to determin if there has been a hit
				// depending on what type of graph we have
				if(((!s.bars.show) && xdiff < xsens && ydiff < ysens) || 
				    (s.bars.show && xdiff < s.bars.barWidth/2 && my > ya.min && my < y)){
					var distance = Math.sqrt(xdiff*xdiff + ydiff*ydiff);
					if(distance < n.dist){
						n.dist = distance;
						n.x = x;
						n.y = y;
						n.xaxis = xa;
						n.yaxis = ya;
						n.mouse = s.mouse;
						n.series = s;
						n.index = j;
					}
				}
			}
		}
		
		if(n.series && (n.mouse && n.mouse.track && !prevHit || (prevHit /*&& (n.x != prevHit.x || n.y != prevHit.y)*/))){
			var mt = this.mouseTrack || this.el.select(".flotr-mouse-value")[0],
			    pos = '', 
			    s = n.series,
			    p = n.mouse.position, 
			    m = n.mouse.margin,
			    elStyle = 'opacity:0.7;background-color:#000;color:#fff;display:none;position:absolute;padding:2px 8px;-moz-border-radius:4px;border-radius:4px;white-space:nowrap;';
			
			if (!n.mouse.relative) { // absolute to the canvas
				     if(p.charAt(0) == 'n') pos += 'top:' + (m + plotOffset.top) + 'px;';
				else if(p.charAt(0) == 's') pos += 'bottom:' + (m + plotOffset.bottom) + 'px;';					
				     if(p.charAt(1) == 'e') pos += 'right:' + (m + plotOffset.right) + 'px;';
				else if(p.charAt(1) == 'w') pos += 'left:' + (m + plotOffset.left) + 'px;';
			}
			else { // relative to the mouse or in the case of bar like graphs to the bar
				if(!s.bars.show){
					     if(p.charAt(0) == 'n') pos += 'bottom:' + (m - plotOffset.top - this.tVert(n.y, n.yaxis) + this.canvasHeight) + 'px;';
					else if(p.charAt(0) == 's') pos += 'top:' + (m + plotOffset.top + this.tVert(n.y, n.yaxis)) + 'px;';
					     if(p.charAt(1) == 'e') pos += 'left:' + (m + plotOffset.left + this.tHoz(n.x, n.xaxis)) + 'px;';
					else if(p.charAt(1) == 'w') pos += 'right:' + (m - plotOffset.left - this.tHoz(n.x, n.xaxis) + this.canvasWidth) + 'px;';
				}

				else {
					pos += 'bottom:' + (m - plotOffset.top - this.tVert(n.yaxis.min+((n.y-n.yaxis.min)/2), n.yaxis) + this.canvasHeight) + 'px;';
					pos += 'left:' + (m + plotOffset.left + this.tHoz(n.x - options.bars.barWidth/2 , n.xaxis)) + 'px;';
				}
			}
			
			elStyle += pos;
				     
			if(!mt){
				this.el.insert('<div class="flotr-mouse-value" style="'+elStyle+'"></div>');
				mt = this.mouseTrack = this.el.select('.flotr-mouse-value').first();
			}
			else {
				this.mouseTrack = mt.setStyle(elStyle);
			}
			
			if(n.x !== null && n.y !== null){
				mt.show();
				
				this.clearHit();
				this.drawHit(n);
				
				var decimals = n.mouse.trackDecimals;
				if(decimals == null || decimals < 0) decimals = 0;
				
				mt.innerHTML = n.mouse.trackFormatter({x: n.x.toFixed(decimals), y: n.y.toFixed(decimals), series: n.series, index: n.index});
				mt.fire('flotr:hit', [n, this]);
			}
			else if(prevHit){
				mt.hide();
				this.clearHit();
			}
		}
		else if(this.prevHit) {
			this.mouseTrack.hide();
			this.clearHit();
		}
	},
	saveImage: function (type, width, height, replaceCanvas) {
		var image = null;
		switch (type) {
			case 'jpeg':
			case 'jpg': image = Canvas2Image.saveAsJPEG(this.canvas, replaceCanvas, width, height); break;
			default:
			case 'png': image = Canvas2Image.saveAsPNG(this.canvas, replaceCanvas, width, height); break;
			case 'bmp': image = Canvas2Image.saveAsBMP(this.canvas, replaceCanvas, width, height); break;
		}
		if (Object.isElement(image) && replaceCanvas) {
			this.restoreCanvas();
			this.canvas.hide();
			this.overlay.hide();
			this.el.insert(image.setStyle({position: 'absolute'}));
		}
	},
	restoreCanvas: function() {
		this.canvas.show();
		this.overlay.show();
		this.el.select('img').invoke('remove');
	}
});

Flotr.Color = Class.create({
	initialize: function(r, g, b, a){
		this.rgba = ['r','g','b','a'];
		var x = 4;
		while(-1<--x){
			this[this.rgba[x]] = arguments[x] || ((x==3) ? 1.0 : 0);
		}
		this.normalize();
	},
	
	adjust: function(rd, gd, bd, ad) {
		var x = 4;
		while(-1<--x){
			if(arguments[x] != null)
				this[this.rgba[x]] += arguments[x];
		}
		return this.normalize();
	},
	
	clone: function(){
		return new Flotr.Color(this.r, this.b, this.g, this.a);
	},
	
	limit: function(val,minVal,maxVal){
		return Math.max(Math.min(val, maxVal), minVal);
	},
	
	normalize: function(){
		var limit = this.limit;
		this.r = limit(parseInt(this.r), 0, 255);
		this.g = limit(parseInt(this.g), 0, 255);
		this.b = limit(parseInt(this.b), 0, 255);
		this.a = limit(this.a, 0, 1);
		return this;
	},
	
	scale: function(rf, gf, bf, af){
		var x = 4;
		while(-1<--x){
			if(arguments[x] != null)
				this[this.rgba[x]] *= arguments[x];
		}
		return this.normalize();
	},
	
	distance: function(color){
		if (!color) return;
		color = new Flotr.parseColor(color);
		var dist = 0, x = 3;
		while(-1<--x){
			dist += Math.abs(this[this.rgba[x]] - color[this.rgba[x]]);
		}
		return dist;
	},
	
	toString: function(){
		return (this.a >= 1.0) ? 'rgb('+[this.r,this.g,this.b].join(',')+')' : 'rgba('+[this.r,this.g,this.b,this.a].join(',')+')';
	}
});

Flotr.Color.lookupColors = {
	aqua:[0,255,255],
	azure:[240,255,255],
	beige:[245,245,220],
	black:[0,0,0],
	blue:[0,0,255],
	brown:[165,42,42],
	cyan:[0,255,255],
	darkblue:[0,0,139],
	darkcyan:[0,139,139],
	darkgrey:[169,169,169],
	darkgreen:[0,100,0],
	darkkhaki:[189,183,107],
	darkmagenta:[139,0,139],
	darkolivegreen:[85,107,47],
	darkorange:[255,140,0],
	darkorchid:[153,50,204],
	darkred:[139,0,0],
	darksalmon:[233,150,122],
	darkviolet:[148,0,211],
	fuchsia:[255,0,255],
	gold:[255,215,0],
	green:[0,128,0],
	indigo:[75,0,130],
	khaki:[240,230,140],
	lightblue:[173,216,230],
	lightcyan:[224,255,255],
	lightgreen:[144,238,144],
	lightgrey:[211,211,211],
	lightpink:[255,182,193],
	lightyellow:[255,255,224],
	lime:[0,255,0],
	magenta:[255,0,255],
	maroon:[128,0,0],
	navy:[0,0,128],
	olive:[128,128,0],
	orange:[255,165,0],
	pink:[255,192,203],
	purple:[128,0,128],
	violet:[128,0,128],
	red:[255,0,0],
	silver:[192,192,192],
	white:[255,255,255],
	yellow:[255,255,0]
};

// not used yet
Flotr.Date = {
	format: function(d, format) {
		if (!d) return;

		var leftPad = function(n) {
			n = n.toString();
			return n.length == 1 ? "0" + n : n;
		};
		
		var r = [], c,
		    escape = false;
		
		for (var i = 0; i < format.length; ++i) {
			c = format.charAt(i);
			
			if (escape) {
				switch (c) {
					case 'h': c = d.getUTCHours().toString(); break;
					case 'H': c = leftPad(d.getUTCHours()); break;
					case 'M': c = leftPad(d.getUTCMinutes()); break;
					case 'S': c = leftPad(d.getUTCSeconds()); break;
					case 'd': c = d.getUTCDate().toString(); break;
					case 'm': c = (d.getUTCMonth() + 1).toString(); break;
					case 'y': c = d.getUTCFullYear().toString(); break;
					case 'b': c = Flotr.Date.monthNames[d.getUTCMonth()]; break;
				}
				r.push(c);
				escape = false;
			}
			else {
				if (c == "%")
					escape = true;
				else
					r.push(c);
			}
		}
		return r.join("");
	},
	formatter: function (v, axis) {
		var d = new Date(v);

		// first check global format
		if (axis.options.timeformat != null)
			return Flotr.Date.format(d, axis.options.timeformat);
		
		var t = axis.tickSize[0] * Flotr.Date.timeUnits[axis.tickSize[1]],
		    span = axis.max - axis.min;
		
		if (t < Flotr.Date.timeUnits.minute)
			fmt = "%h:%M:%S";
		else if (t < Flotr.Date.timeUnits.day)
			fmt = (span < 2 * Flotr.Date.timeUnits.day) ? "%h:%M" : "%b %d %h:%M";
		else if (t < Flotr.Date.timeUnits.month)
			fmt = "%b %d";
		else if (t < Flotr.Date.timeUnits.year) 
			fmt = (span < Flotr.Date.timeUnits.year) ? "%b" : "%b %y";
		else 
			fmt = "%y";
		
		return Flotr.Date.format(d, fmt);
	},
	generator: function(axis) {
		var ticks = [],
			tickSize = axis.tickSize[0], unit = axis.tickSize[1],
			d = new Date(axis.min),
			step = tickSize * timeUnitSize[unit];

		switch (unit) {
			case "second": d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize)); break;
			case "minute": d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize)); break;
			case "hour":   d.setUTCHours(floorInBase(d.getUTCHours(), tickSize)); break;
			case "month":  d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize)); break;
			case "year":   d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize));break;
		}
		
		// reset smaller components
		d.setUTCMilliseconds(0);
		if (step >= timeUnitSize.minute)  d.setUTCSeconds(0);
		if (step >= timeUnitSize.hour)    d.setUTCMinutes(0);
		if (step >= timeUnitSize.day)     d.setUTCHours(0);
		if (step >= timeUnitSize.day * 4) d.setUTCDate(1);
		if (step >= timeUnitSize.year)    d.setUTCMonth(0);

		var carry = 0, v = Number.NaN, prev;
		do {
			prev = v;
			v = d.getTime();
			ticks.push({ v: v, label: axis.tickFormatter(v, axis) });
			if (unit == "month") {
				if (tickSize < 1) {
					/* a bit complicated - we'll divide the month up but we need to take care of fractions
					 so we don't end up in the middle of a day */
					d.setUTCDate(1);
					var start = d.getTime();
					d.setUTCMonth(d.getUTCMonth() + 1);
					var end = d.getTime();
					d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
					carry = d.getUTCHours();
					d.setUTCHours(0);
				}
				else
					d.setUTCMonth(d.getUTCMonth() + tickSize);
			}
			else if (unit == "year") {
				d.setUTCFullYear(d.getUTCFullYear() + tickSize);
			}
			else
				d.setTime(v + step);
		} while (v < axis.max && v != prev);

		return ticks;
	},
	timeUnits: {
		second: 1000,
		minute: 1000 * 60,
		hour:   1000 * 60 * 60,
		day:    1000 * 60 * 60 * 24,
		month:  1000 * 60 * 60 * 24 * 30,
		year:   1000 * 60 * 60 * 24 * 30 * 365.2425
	},
	// the allowed tick sizes, after 1 year we use an integer algorithm
	spec: [
		[1, "second"],   [2, "second"],  [5, "second"], [10, "second"], [30, "second"], 
		[1, "minute"],   [2, "minute"],  [5, "minute"], [10, "minute"], [30, "minute"], 
		[1, "hour"],     [2, "hour"],    [4, "hour"],   [8, "hour"],    [12, "hour"],
		[1, "day"],      [2, "day"],     [3, "day"],
		[0.25, "month"], [0.5, "month"], [1, "month"],  [2, "month"],   [3, "month"], [6, "month"],
		[1, "year"]
	],
	monthNames: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
};


// Title: Tigra Tables PRO
// URL: http://www.softcomplex.com/products/tigra_tables_pro/
// Version: 2.1
// Date: 03-09-2004 (mm-dd-yyyy)
// Notes: Registration needed to use this script legally.
//      Visit official site for details.
// ----------------------------------------------------------------------------------
// " IN " instead of " ON "
// "" instead of " substring case ";
// and so on
    var path_to_files = "/js/ttp_files_proto/";
    var d = document, TTablePRO = [], NUM = "NUM", STR = "STR", DATE = "DATE", CURRENCY = "CURRENCY";

    function TCastSTR(TTPH) {
        return TTPH.replace(/<[^>]+>/gi, "") + "";
    }


    function TCastNUM(TTPH) {
        if (isNaN(TTPH * 1)) {
            return 0;
        } else {
            return TTPH * 1;
        }
    }


    function TCastDATE(TTPH, TTP0P) {
        if (typeof TTPJ != "function") {
            return TTPH + "";
        }
        if (TTP0P) {
            return TTPJ(TTP0P, TTPH);
        } else {
            return TTPJ("Y-m-d", TTPH);
        }
    }


    function TCastCURRENCY(TTPH) {
        return TTPH.replace(/[^0-9\-\.]/g, "") * 1;
    }


    function TTP0Q(l, h) {
        if (this.TTPc && !this.TTPc.length) {
            return true;
        }
        var TTP0R = this.TTP0S[h + l >> 1][this.TTPo.TTPp], i = l, TTPR = h, TTP0T = [];
        do {
            while (i <= h && this.TTP0S[i][this.TTPo.TTPp] < TTP0R) {
                i++;
            }
            while (TTPR >= l && TTP0R < this.TTP0S[TTPR][this.TTPo.TTPp]) {
                TTPR--;
            }
            if (i <= TTPR) {
                TTP0T = this.TTPa[i];
                this.TTPa[i] = this.TTPa[TTPR];
                this.TTPa[TTPR] = TTP0T;
                TTP0T = this.TTP0S[i];
                this.TTP0S[i] = this.TTP0S[TTPR];
                this.TTP0S[TTPR] = TTP0T;
                i++;
                TTPR--;
            }
        } while (i < TTPR);
        if (l < TTPR) {
            this.TTP0U(l, TTPR);
        }
        if (i < h) {
            this.TTP0U(i, h);
        }
    }


    function TTable(TTPY, TTPb, TTP0V) {
        var TTPU = 0, filters = ["substring", "match", "regexp", ""], i, TTP0W = ["main", "captCell", "captText", "head", "foot", "pagnCell", "pagnText", "pagnPict", "filtCell", "filtPatt", "filtSelc"];
        this.TTPY = [];
        this.TTP0X = [];
        this.TTPa = [];
        this.TTP0Y = [], this.TTP0Z = [];
        this.TTP0S = [], this.TTPb = [], this.TTP0a = 0;
        this.TTP0b = ["Capt()", "HdFt(\"head\")", "Body()", "HdFt(\"foot\")", "Page()", "Filt()"];
        this.id = TTablePRO.length;
        TTablePRO[this.id] = this;
        this.TTPl = null;
        this.TTPm = "";
        this.TTPz = "";
        this.TTP00 = "";
        this.TTP0c = [];
        this.TTP0d = [];
        this.TTP0L = [];
        this.TTPr = "";
        this.TTPs = 0;
        this.changeCont = TTP0e;
        this.buildCapt = TTP0f;
        this.buildHdFt = TTP0g;
        this.buildBody = TTPP;
        this.buildPage = TTP0h;
        this.buildFilt = TTP0i;
        this.build = TTP0j;
        this.TTP04 = TTPy;
        this.buildCell = TTP0k;
        this.exeSort = TTP0l;
        this.TTP0U = TTP0Q;
        this.exePage = TTP0m;
        this.exeFilt = TTP0n;
        this.TTPv = TTP0o;
        this.TTPw = TTP0p;
        this.attachForm = TTP0q;
        this.TTP0r = TTPt;
        this.TTPe = [];
        this.TTP0s = "";
        this.TTP0t = false;
        this.TTP0F = TTP0V.onclick;
        this.TTP0H = TTP0V.key || 0;
        with (TTP0V) {
            for (var i = 0; i < TTP0W.length; ++i) {
                this.TTPe[TTP0W[i]] = css != null && css[TTP0W[i]] ? " class=\"" + css[TTP0W[i]] + "\"" : "";
            }
            this.TTPe.body = [];
            this.TTP0u = params[0] || 0;
            this.TTP0v = params[1] || 0;
            this.TTPX = colors || {};
            this.TTPx = structure;
            if (!paging) {
                var paging = [];
            }
            this.TTPT = {TTP1C: paging.pf || "&laquo;&laquo;", TTP1D: paging.pp || "&laquo;", TTP1F: paging.pn || "&raquo;", TTP1G: paging.pl || "&raquo;&raquo;", TTP1E: paging.tt || "&nbsp;", TTP1B: paging.sh, TTPV: paging.by && paging.by > 0 ? paging.by : TTPb.length, TTPU: 0};
            if (!sorting) {
                var sorting = [];
            }
            this.TTPo = {s_as: sorting.as || "", s_ds: sorting.ds || "", s_no: sorting.no || "", TTPp: sorting.cl, TTPq: sorting.or};
            this.btn_ok = filter.btn_ok || "filter";
            this.btn_no = filter.btn_no || "clear";
            this.TTP0w = filters;
            this.filter = filter.type;
            this.TTP0x = 4;
            for (i = filters.length - 1; i >= 0; i--) {
                if (!(1 << i & filter.type)) {
                    this.TTP0w[i] = 0;
                    this.TTP0x--;
                } else {
                    this.TTPn = i;
                }
            }
            if (this.filter == 0) {
                this.TTPn = "";
            }
            var TTP0y = freeze[0] * 1, TTP0z = freeze[1] * 1;
        }
        this.TTP0B = TTP0V.multy_mark;
        this.TTPW = TTPb.length - TTP0y - TTP0z;
        this.TTPd = TTPY.length;
        for (var  i = 0;  i < TTPY.length; ++i) {
            this.TTPe.body[i] = !TTP0V.css || !TTP0V.css.body ? "" : typeof TTP0V.css.body != "object" ? TTP0V.css.body : TTP0V.css.body[i] ? " class=\"" + TTP0V.css.body[i] + "\"" : "";
            this.TTP0Y[i] = {name: TTPY[i].name.replace(/<[^>]+>/gi, "")};
            this.TTPY[i] = {name: TTPY[i].name, TTP19: TTPY[i].TTP10, type: TTPY[i].type, TTPZ: TTPY[i].hide, TTP13: typeof window["TCast" + TTPY[i].type] == "function" ? window["TCast" + TTPY[i].type] : typeof TTPY[i].type == "function" ? TTPY[i].type : function (TTPH) {return TTPH;}, f_css: typeof TTPY[i].format == "function" ? TTPY[i].format : function () {return null;}};
            if (TTPY[i].hide) {
                this.TTP0a++;
            }
            if (TTPY[i].type == DATE) {
                if (!this.TTP0t) {
                    this.TTP11 = typeof TTPB == "function" ? TTPB : function (TTPH) {return TTPH + "";};
                    this.TTP0t = true;
                }
                this.TTPY[i].format_input = TTPY[i].format_input || "";
                this.TTPY[i].format_output = TTPY[i].format_output || "";
            }
        }
        for (i = 0; i < TTPb.length; i++) {
            for (TTPR = 0; TTPR < TTPb[0].length; TTPR++) {
                if (TTPb[i][TTPR] + "" == "" || TTPb[i][TTPR] == null) {
                    TTPb[i][TTPR] = "&nbsp;";
                }
            }
        }
        for (i = 0; i < TTP0y; i++) {
            this.TTP0X[i] = TTPb[TTPU++];
        }
        for (i = 0; i < this.TTPW; i++) {
            this.TTP0S[i] = [];
            for (var TTP12 = 0; TTP12 < this.TTPd; TTP12++) {
                var TTPH = TTPb[TTPU][TTP12] + "";
                if (this.TTPY[TTP12].type == DATE) {
                    this.TTP0S[i][TTP12] = this.TTPY[TTP12].TTP13(TTPH, this.TTPY[TTP12].format_input);
                    TTPb[i][TTP12] = this.TTP11(this.TTP0S[i][TTP12], this.TTPY[TTP12].format_output);
                } else {
                    this.TTP0S[i][TTP12] = this.TTPY[TTP12].TTP13(TTPH);
                }
            }
            this.TTPa[i] = TTPb[TTPU++];
            this.TTPb[i] = this.TTP0S[i];
            this.TTPa[i][this.TTPa[i].length] = i;
        }
        for (i = 0; i < TTP0z; i++) {
            this.TTP0Z[i] = TTPb[TTPU++];
        }
        this.TTP0r();
    }


    function TTP0e(TTPb, TTPs) {
        var TTPU = 0;
        if (!d.implementation && !d.styleSheets && !this.TTPr) {
            this.TTPr = TTPb;
            this.TTPs = TTPs;
            TTPi(this.id);
            return;
        }
        TTPb = window[TTPb];
        this.TTPb = [];
        this.TTP0S = [];
        this.TTPa = [];
        this.TTP0c = [];
        this.TTPo.TTPp = null;
        this.TTPc = [];
        this.TTPT.TTPV = TTPs && TTPs > 0 ? TTPs : TTPb.length;
        this.TTPT.TTPU = 0;
        if (this.TTPT.TTPV > TTPb.length) {
            this.TTPT.TTPV = TTPb.length;
        }
        this.TTPW = TTPb.length - this.TTP0X.length - this.TTP0Z.length;
        for (i = 0; i < TTPb.length; i++) {
            for (TTPR = 0; TTPR < TTPb[0].length; TTPR++) {
                if (TTPb[i][TTPR] + "" == "" || TTPb[i][TTPR] == null) {
                    TTPb[i][TTPR] = "&nbsp;";
                }
            }
        }
        for (i = 0; i < this.TTP0X.length; i++) {
            this.TTP0X[i] = TTPb[TTPU++];
        }
        for (i = 0; i < this.TTPW; i++) {
            this.TTP0S[i] = [];
            this.TTPa[i] = [];
            for (var TTP12 = 0; TTP12 < this.TTPd; TTP12++) {
                var TTPH = TTPb[TTPU][TTP12] + "";
                var TTP14 = 0;
                if (this.TTPY[TTP12].type == DATE) {
                    this.TTP0S[i][TTP12] = this.TTPY[TTP12].TTP13(TTPH, this.TTPY[TTP12].format_input);
                    TTP14 = this.TTP11(this.TTP0S[i][TTP12], this.TTPY[TTP12].format_output);
                } else {
                    this.TTP0S[i][TTP12] = this.TTPY[TTP12].TTP13(TTPH);
                }
                this.TTPa[i][TTP12] = TTP14 ? TTP14 : TTPb[i][TTP12];
            }
            TTPU++;
            this.TTPb[i] = this.TTP0S[i];
            this.TTPa[i][this.TTPa[i].length] = i;
        }
        for (i = 0; i < this.TTP0Z.length; i++) {
            this.TTP0Z[i] = TTPb[TTPU++];
        }
        if (d.implementation || d.styleSheets) {
            this.TTP04();
        }
    }


    function TTP0f() {
        var TTP08 = ["<tr>"], i, TTP15, TTP16, TTP17 = 1;
        for (var i = 0; i < this.TTPY.length; ++i) {
            if (!this.TTPY[i].TTPZ) {
                if (this.TTPY[i].type) {
                    TTP15 = Boolean(this.TTPo.TTPp == i && this.TTPo.TTPq != 1);
                    TTP16 = this.TTPo[this.TTPo.TTPp != i ? "s_no" : this.TTPo.TTPq ? "s_ds" : "s_as"];
                    TTP18 = "TTablePRO[" + this.id + "].exeSort(" + i + "," + TTP15 + ")";
                    TTP08[TTP17++] = this.buildCell(["<table cellpadding=\"0\" cellspacing=\"0\" border=\"0\" width=\"100%\"><tr valign=\"middle\">", "<td width=\"99%\"", this.TTPe.captText, "><a title=\"Sort this column\" href=\"javascript:", TTP18, "\"", this.TTPe.captText, ">", this.TTPY[i].name, "</a></td><td><a href=\"javascript:", TTP18, "\">", TTP16, "</a></td></tr></table>"].join(""), this.TTPe.captCell);
                } else {
                    TTP08[TTP17++] = this.buildCell(["<table cellpadding=\"0\" width=\"100%\" cellspacing=\"0\" border=\"0\"><tr valign=\"middle\"><td width=\"99%\"", this.TTPe.captText, ">", this.TTPY[i].name, "</td></tr></table>"].join(""), this.TTPe.captCell);
                }
            }
        }
        TTP08[TTP17++] = "</tr>";
        return TTP08.join("");
    }


    function TTP0i() {
        if (this.TTP0s) {
            return this.TTP0s;
        }
        if (this.TTP0x == 0) {
            return "";
        }
        var TTP08 = ["<tr><td", this.TTPe.filtCell, " colspan=\"", this.TTPd - this.TTP0a, "\" ><form id=\"TTForm" + this.id + "\" name=\"TTForm" + this.id + "\" onsubmit=\"return TTablePRO[", this.id, "].exeFilt(1);\"><table border=0 cellpadding=0 cellspacing=0 width=100%><tr><td", this.TTPe.filtCell, " align=right nowrap>Search <input", this.TTPe.filtPatt, " type=\"text\" name=\"filtPatt\" size=\"10", this.TTPm ? "\" value=\"" + this.TTPm : "", "\"> "], TTP17 = 13;
        if (this.TTP0x > 1) {
            TTP08[TTP17++] = "<select" + this.TTPe.filtSelc + " name=\"filtType\">";
            for (var i = 0; i < this.TTP0w.length; i++) {
                if (this.TTP0w[i]) {
                    TTP08[TTP17++] = ["<option value=", i, i == this.TTPn * 1 ? " selected" : "", ">", this.TTP0w[i]].join("");
                }
            }
            TTP08[TTP17++] = "</select>";
        } else {
            TTP08[TTP17++] = this.TTP0w[this.TTPn];
        }
        TTP08[TTP17++] = " in column <select" + this.TTPe.filtSelc + " name=\"filtCol\">";
        for (var  i = 0;  i < this.TTPY.length; ++i) {
            if (!this.TTPY[i].TTPZ && !this.TTPY[i].TTP19) {
                TTP08[TTP17++] = "<option value=" + i + (this.TTPl * 1 == i ? " selected" : "") + ">" + this.TTP0Y[i].name;
            }
        }
        TTP08[TTP17++] = "</select><a href=\"#\" onclick=\"javascript:{TTablePRO[" + this.id + "].exeFilt(1);return false}\">" + this.btn_ok + "</a> <a href=\"#\" onclick=\"javascript:{TTablePRO[" + this.id + "].exeFilt(); return false}\">" + this.btn_no + "</a></td></tr></table></td></form></tr>";
        this.TTP0s = TTP08.join("");
        return this.TTP0s;
    }


    function TTP0h() {
        var TTP1A = Math.ceil(this.TTPW / this.TTPT.TTPV) - 1;
        if (TTP1A <= 0 && !this.TTPT.TTP1B) {
            return "";
        }
        var TTP08 = ["<tr><td colspan=", this.TTPd - this.TTP0a, this.TTPe.pagnCell, "><table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" width=\"100%\"><tr>"], TTP17 = 4;
        this.TTPT.TTPU = this.TTPT.TTPU * 1;
        var TTPH = "<td nowrap><a" + this.TTPe.pagnPict + " href=\"javascript:TTablePRO[" + this.id + "].exePage(";
        if (this.TTPT.TTPU > 0) {
            if (this.TTPT.TTP1C) {
                TTP08[TTP17++] = TTPH + ("0)\" title=\"First page\">" + this.TTPT.TTP1C + "</a></td>");
            }
            if (this.TTPT.TTP1D) {
                TTP08[TTP17++] = TTPH + (this.TTPT.TTPU - 1) + (")\" title=\"Previous page\">" + this.TTPT.TTP1D + "</a></td>");
            }
        }
        TTP08[TTP17++] = "<td width=\"99%\"" + this.TTPe.pagnText + ">" + this.TTPT.TTP1E.replace("%ind", this.TTPT.TTPU + 1).replace("%pgs", TTP1A + 1).replace("%rcs", this.TTPW) + "</td>";
        if (this.TTPT.TTPU < TTP1A) {
            if (this.TTPT.TTP1F) {
                TTP08[TTP17++] = TTPH + (this.TTPT.TTPU + 1) + (")\" title=\"Next page\">" + this.TTPT.TTP1F + "</a></td>");
            }
            if (this.TTPT.TTP1G) {
                TTP08[TTP17++] = TTPH + TTP1A + (")\" title=\"Last page\">" + this.TTPT.TTP1G + "</a></td>");
            }
        }
        TTP08[TTP17++] = "</tr></table></td></tr>";
        return TTP08.join("");
    }


    function TTP0k(value, TTP1H, TTP1I) {
        return "<td" + TTP1H + (TTP1I ? " " + TTP1I : "") + ">" + value + "</td>";
    }


    function TTP0g(TTP1J) {
        var TTPH = "", i, TTPR, TTP08 = {head: this.TTP0X, foot: this.TTP0Z};
        for (var i = 0; i < TTP08[TTP1J].length; ++i) {
            TTPH += "<tr>";
            for (var TTPR = 0; TTPR < this.TTPY.length; ++TTPR) {
                if (!this.TTPY[TTPR].TTPZ) {
                    TTPH += this.buildCell(TTP08[TTP1J][i][TTPR], this.TTPe[TTP1J]);
                }
            }
            TTPH += "</tr>";
        }
        return TTPH;
    }


    function TTP0j() {
        var i, TTPH = "<table cellpadding=" + this.TTP0u + " cellspacing=" + this.TTP0v + this.TTPe.main + " width=100% border=0>";
        for (var i = 0; i < this.TTPx.length; ++i) {
            TTPH += eval("this.build" + this.TTP0b[this.TTPx[i]]);
        }
        TTPH += "</table>";
        return TTPH;
    }


    function TTP0q(TTP1K, filtCol, filtPatt, filtType) {
        this.TTP1K = TTP1K;
        this.filtCol = TTP1K.elements[filtCol];
        this.filtPatt = TTP1K.elements[filtPatt];
        this.filtType = TTP1K.elements[filtType];
    }


    function TTP0n(TTP1L) {
        if (TTP1L) {
            if (!this.TTP1K) {
                return false;
            }
            this.TTPl = !this.filtCol ? 0 : this.filtCol.type.indexOf("select-") > -1 ? this.filtCol.options[this.filtCol.selectedIndex].value : this.filtCol.value;
            this.TTPm = this.filtPatt.value;
            this.TTPn = this.filtType && this.filtType.type.indexOf("select-") > -1 ? this.filtType.options[this.filtType.selectedIndex].value : this.TTPn;
        } else {
            this.TTPl = null;
            this.TTPm = "";
        }
        this.TTPT.TTPU = 0;
        this.TTP04();
        return false;
    }


    function TTP0m(TTPV) {
        this.TTPT.TTPU = TTPV;
        this.TTP04();
    }


    function TTP0l(TTPp, TTP1M) {
        var TTP07 = this.TTPo.TTPp;
        this.TTPo.TTPp = TTPp;
        this.TTPo.TTPq = TTP1M;
        this.TTPT.TTPU = 0;
        this.TTP04(true, TTP07);
    }


    function TTP0p(TTP07) {
        var i, TTPR = 0;
        if (TTP07 == this.TTPo.TTPp) {
            this.TTPa = this.TTPa.reverse();
            this.TTP0S = this.TTP0S.reverse();
        } else {
            if (!this.TTP0c[this.TTPo.TTPp]) {
                this.TTP0U(0, this.TTP0S.length - 1);
                this.TTP0c[this.TTPo.TTPp] = [];
                this.TTP0d[this.TTPo.TTPp] = [];
                for (i = 0; i < this.TTPa.length; i++) {
                    this.TTP0c[this.TTPo.TTPp][i] = this.TTPa[i];
                    this.TTP0d[this.TTPo.TTPp][i] = this.TTP0S[i];
                }
                this.TTP0c[this.TTPo.TTPp].TTPq = this.TTPo.TTPq;
            } else {
                if (this.TTP0c[this.TTPo.TTPp].TTPq != this.TTPo.TTPq) {
                    this.TTPa = this.TTP0c[this.TTPo.TTPp].reverse();
                    this.TTP0S = this.TTP0d[this.TTPo.TTPp].reverse();
                } else {
                    this.TTPa = this.TTP0c[this.TTPo.TTPp];
                    this.TTP0S = this.TTP0d[this.TTPo.TTPp];
                }
            }
            if (this.TTPo.TTPq) {
                this.TTPa = this.TTPa.reverse();
                this.TTP0S = this.TTP0S.reverse();
            }
        }
    }


    function TTP0o() {
        if (!this.TTPm || this.TTPl == null) {
            return this.TTPa;
        }
        var TTPa = [], TTPH;
        if (this.TTPn == 2) {
            var TTP1N = eval("/" + this.TTPm + "/");
        }
        for (i = 0; i < this.TTPa.length; i++) {
            if (this.TTPY[this.TTPl] == DATE) {
                TTPH = this.TTPa[i][this.TTPl] + "";
            } else {
                TTPH = this.TTP0S[i][this.TTPl] + "";
            }
            if (this.TTPn == 2 && TTPH.search(TTP1N) != -1 ||
                this.TTPn == 1 && TTPH == this.TTPm ||
                this.TTPn == 0 && TTPH.indexOf(this.TTPm) != -1 ||
                this.TTPn == 3 &&
                TTPH.search(eval("/" + this.TTPm + "/i")) != -1) {
                TTPa[TTPa.length] = this.TTPa[i];
            }
        }
        return TTPa;
    }

    d.write("<SC", "RIPT LANGUAGE=\"JavaScript\" src=\"", path_to_files, "table.do.", d.implementation || d.styleSheets ? "ok" : "no", ".js\"></SCR", "IPT>");


// Title: Tigra Tables PRO
// URL: http://www.softcomplex.com/products/tigra_tables_pro/
// Version: 2.1
// Date: 03-09-2004 (mm-dd-yyyy)
// Notes: Registration needed to use this script legally.
//	Visit official site for details.

    var TTP0 = "aAdDFhHilmMsUYy", TTP1 = "dMDFhHimsUYy", TTP2 = {a: ["([a-z]{2})"], A: ["([A-Z]{2})"], d: ["([0-9]{0,2})"], D: ["([A-z]{3})"], F: ["([A-z]{0,10})"], h: ["([0-9]{0,2})"], H: ["([0-9]{0,2})"], i: ["([0-9]{0,2})"], l: ["([A-z]{0,10})"], m: ["([0-9]{0,2})"], M: ["([A-z]{3})"], s: ["([0-9]{0,2})"], U: ["([0-9]{0,12})"], Y: ["([0-9]{4})"], y: ["([0-9]{2})"]}, TTP3 = false, TTP4 = {a: [null, function (TTP5) {if (TTP5 > 12) {return "pm";} else {return "am";}}, null], A: [null, function (TTP5) {if (TTP5 > 12) {return "PM";} else {return "AM";}}, null], d: ["setDate", function (TTP5) {TTP5 = TTP5.getDate();if (TTP5 < 10) {return "0" + TTP5;} else {return TTP5;}}, function (TTP5) {return TTP5 * 1;}], D: [null, function (TTP5) {return ARR_STRINGS.short_days[TTP5.getDay()];}, function (TTP5) {return TTP5 * 1;}], l: [null, function (TTP5) {return ARR_STRINGS.long_days[TTP5.getDay()];}, function (TTP5) {return TTP5 * 1;}], h: ["setHours", function (TTP5) {TTP5 = TTP5.getHours();if (TTP5 <= 12) {return TTP5;} else {return TTP5 - 12;}}, function (TTP5, TTP6) {TTP5 = TTP5 * 1;if (TTP6 == "PM" || TTP6 == "pm") {return 12 + TTP5 * 1;} else {return TTP5 * 1;}}], H: ["setHours", "getHours", function (TTP5) {return TTP5 * 1;}], i: ["setMinutes", function (TTP5) {TTP5 = TTP5.getMinutes();if (TTP5 < 10) {return "0" + TTP5;} else {return TTP5 * 1;}}, function (TTP5) {return TTP5 * 1;}], s: ["setSeconds", function (TTP5) {TTP5 = TTP5.getSeconds();if (TTP5 < 10) {return "0" + TTP5;} else {return TTP5 * 1;}}, function (TTP5) {return TTP5 * 1;}], m: ["setMonth", function (TTP5) {TTP5 = TTP5.getMonth() + 1;if (TTP5 < 10) {return "0" + TTP5;} else {return TTP5;}}, function (TTP5) {return TTP5 * 1 - 1;}], F: ["setMonth", function (TTP5) {return ARR_STRINGS.long_month[TTP5.getMonth()];}, function (TTP5) {var i;TTP5 = TTP5 + "";for (i = 0; i < 12; i++) {if (ARR_STRINGS.long_month[i].toLowerCase() == TTP5.toLowerCase()) {return i;}}return alert(ARR_STRINGS.bad_month.replace(/%month_name/g, TTP5));}], M: ["setMonth", function (TTP5) {return ARR_STRINGS.short_month[TTP5.getMonth()];}, function (TTP5) {var i;TTP5 = TTP5 + "";for (i = 0; i < 12; i++) {if (ARR_STRINGS.short_month[i].toLowerCase() == TTP5.toLowerCase()) {return i;}}return alert(ARR_STRINGS.bad_month.replace(/%month_name/g, TTP5));}], U: [], Y: ["setFullYear", "getFullYear", function (TTP5) {return TTP5 * 1;}], y: ["setFullYear", function (TTP5) {return (TTP5.getFullYear() + "").substr(2);}, function (TTP5) {if (TTP5 < 50) {return ("20" + TTP5) * 1;} else {return ("19" + TTP5) * 1;}}]}, TTP7;

    function TTP8(TTP9) {
        var TTPA = new Date(1), i;
        TTPA.setMinutes(TTPA.getTimezoneOffset());
        for ( i = 0; i < TTP9.length; ++i) {
            if (TTP1.indexOf(TTP9[i][1]) != -1) {
                var key = TTP9[i][1];
                if (key == "U") {
                    return new Date(TTP9[i][0] * 1000);
                }
                if (key == "h") {
                    var value = TTP4[TTP9[i][1]][2](TTP9[i][0], TTP9[TTP7][0]);
                } else {
                    var value = TTP4[TTP9[i][1]][2](TTP9[i][0]);
                }
                TTPA[TTP4[key][0]](value);
            }
        }
        return TTPA;
    }


    function TTPB(TTPC, TTPD) {
        if (TTPC * 1 == 999999999999999) {
            return "&nbsp;";
        }
        var TTPE, TTPF = 0, TTPG = [], i = 0, TTPH = "", TTPI = "";
        var TTPA = new Date(TTPC);
        do {
            TTPE = TTPD.substr(i, 1);
            if (TTP0.indexOf(TTPE) != -1 && TTPE != "") {
                if (TTPE == "A" || TTPE == "a") {
                    TTPI = new String(TTP4[TTPE][1](TTP7));
                } else if (TTPE == "U") {
                    return TTPC;
                } else if (typeof TTPA[TTP4[TTPE][1]] != "function") {
                    TTPI = new String(TTP4[TTPE][1](TTPA));
                } else {
                    TTPI = new String(TTPA[TTP4[TTPE][1]]());
                }
                if (TTPE == "h") {
                    TTP7 = TTPA.getHours();
                }
                TTPH += TTPI;
            } else {
                TTPH += TTPE;
            }
            i++;
        } while (i < TTPD.length);
        return TTPH;
    }


    function TTPJ(TTPD, TTPK) {
        var TTPL = [], TTPE, TTPF = 0, TTPG = [], i, TTPM = [];
        var TTPN = ["\\\\", "\\/", "\\.", "\\+", "\\*", "\\?", "\\$", "\\^", "\\|"];
        for (i = 0; i < TTPD.length; i++) {
            TTPE = TTPD.substr(i, 1);
            if (TTP0.indexOf(TTPE) != -1 && TTPE != "") {
                TTPG[TTPF] = TTPE;
                TTPM[TTPF++] = TTPE;
            }
        }
        TTPF = 1;
        var TTPG = TTPG.sort();
        for ( i = 0; i < TTPN.length; ++i) {
            TTPD = TTPD.replace(eval("/" + TTPN[i] + "/g"), TTPN[i]);
        }
        for (i = 0; i < TTPG.length; i++) {
            TTPO = new RegExp(TTPG[i]);
            TTPD = TTPD.replace(TTPO, TTP2[TTPG[i]]);
        }
        TTPO = new RegExp("^" + TTPD.replace(/\s+/g, "\\s+") + "$");
        var a = TTPO.exec(TTPK);
        if (!a || typeof a != "object") {
            if (TTPK && TTPK != "&nbsp;") {
                if (!TTP3) {
                    alert(ARR_STRINGS.not_meet);
                    TTP3 = true;
                }
                return new Date;
            }
            return 999999999999999;
        }
        for ( i = 0; i < TTPM.length; ++i) {
            if (TTPM[i] == "A" || TTPM[i] == "a") {
                TTP7 = i;
            }
            TTPL[i] = [a[TTPF++], TTPM[i]];
        }
        return TTP8(TTPL);
    }



/* Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>
 * Version: 1.0
 * LastModified: Dec 25 1999
 * This library is free.  You can redistribute it and/or modify it.
 */

/*
 * Interfaces:
 * b64 = base64encode(data);
 * data = base64decode(b64);
 */

(function() {

var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = [
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
    52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
    -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
    -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1];

function base64encode(str) {
    var out, i, len;
    var c1, c2, c3;

    len = str.length;
    i = 0;
    out = "";
    while(i < len) {
	c1 = str.charCodeAt(i++) & 0xff;
	if(i == len)
	{
	    out += base64EncodeChars.charAt(c1 >> 2);
	    out += base64EncodeChars.charAt((c1 & 0x3) << 4);
	    out += "==";
	    break;
	}
	c2 = str.charCodeAt(i++);
	if(i == len)
	{
	    out += base64EncodeChars.charAt(c1 >> 2);
	    out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
	    out += base64EncodeChars.charAt((c2 & 0xF) << 2);
	    out += "=";
	    break;
	}
	c3 = str.charCodeAt(i++);
	out += base64EncodeChars.charAt(c1 >> 2);
	out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
	out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
	out += base64EncodeChars.charAt(c3 & 0x3F);
    }
    return out;
}

function base64decode(str) {
    var c1, c2, c3, c4;
    var i, len, out;

    len = str.length;
    i = 0;
    out = "";
    while(i < len) {
	/* c1 */
	do {
	    c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
	} while(i < len && c1 == -1);
	if(c1 == -1)
	    break;

	/* c2 */
	do {
	    c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
	} while(i < len && c2 == -1);
	if(c2 == -1)
	    break;

	out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));

	/* c3 */
	do {
	    c3 = str.charCodeAt(i++) & 0xff;
	    if(c3 == 61)
		return out;
	    c3 = base64DecodeChars[c3];
	} while(i < len && c3 == -1);
	if(c3 == -1)
	    break;

	out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));

	/* c4 */
	do {
	    c4 = str.charCodeAt(i++) & 0xff;
	    if(c4 == 61)
		return out;
	    c4 = base64DecodeChars[c4];
	} while(i < len && c4 == -1);
	if(c4 == -1)
	    break;
	out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
    }
    return out;
}

if (!window.btoa) window.btoa = base64encode;
if (!window.atob) window.atob = base64decode;

})();

/*
 * Canvas2Image v0.1
 * Copyright (c) 2008 Jacob Seidelin, cupboy@gmail.com
 * MIT License [http://www.opensource.org/licenses/mit-license.php]
 */

var Canvas2Image = (function() {
	// check if we have canvas support
	var oCanvas = document.createElement("canvas"),
	    sc = String.fromCharCode,
      strDownloadMime = "image/octet-stream",
      bReplaceDownloadMime = false;
	
	// no canvas, bail out.
	if (!oCanvas.getContext) {
		return {
			saveAsBMP : function(){},
			saveAsPNG : function(){},
			saveAsJPEG : function(){}
		}
	}

	var bHasImageData = !!(oCanvas.getContext("2d").getImageData),
	    bHasDataURL = !!(oCanvas.toDataURL),
	    bHasBase64 = !!(window.btoa);

	// ok, we're good
	var readCanvasData = function(oCanvas) {
		var iWidth = parseInt(oCanvas.width),
		    iHeight = parseInt(oCanvas.height);
		return oCanvas.getContext("2d").getImageData(0,0,iWidth,iHeight);
	}

	// base64 encodes either a string or an array of charcodes
	var encodeData = function(data) {
		var i, aData, strData = "";
		
		if (typeof data == "string") {
			strData = data;
		} else {
			aData = data;
			for (i = 0; i < aData.length; i++) {
				strData += sc(aData[i]);
			}
		}
		return btoa(strData);
	}

	// creates a base64 encoded string containing BMP data takes an imagedata object as argument
	var createBMP = function(oData) {
		var strHeader = '',
		    iWidth = oData.width,
		    iHeight = oData.height;

		strHeader += 'BM';
	
		var iFileSize = iWidth*iHeight*4 + 54; // total header size = 54 bytes
		strHeader += sc(iFileSize % 256); iFileSize = Math.floor(iFileSize / 256);
		strHeader += sc(iFileSize % 256); iFileSize = Math.floor(iFileSize / 256);
		strHeader += sc(iFileSize % 256); iFileSize = Math.floor(iFileSize / 256);
		strHeader += sc(iFileSize % 256);

		strHeader += sc(0, 0, 0, 0, 54, 0, 0, 0); // data offset
		strHeader += sc(40, 0, 0, 0); // info header size

		var iImageWidth = iWidth;
		strHeader += sc(iImageWidth % 256); iImageWidth = Math.floor(iImageWidth / 256);
		strHeader += sc(iImageWidth % 256); iImageWidth = Math.floor(iImageWidth / 256);
		strHeader += sc(iImageWidth % 256); iImageWidth = Math.floor(iImageWidth / 256);
		strHeader += sc(iImageWidth % 256);
	
		var iImageHeight = iHeight;
		strHeader += sc(iImageHeight % 256); iImageHeight = Math.floor(iImageHeight / 256);
		strHeader += sc(iImageHeight % 256); iImageHeight = Math.floor(iImageHeight / 256);
		strHeader += sc(iImageHeight % 256); iImageHeight = Math.floor(iImageHeight / 256);
		strHeader += sc(iImageHeight % 256);
	
		strHeader += sc(1, 0, 32, 0); // num of planes & num of bits per pixel
		strHeader += sc(0, 0, 0, 0); // compression = none
	
		var iDataSize = iWidth*iHeight*4; 
		strHeader += sc(iDataSize % 256); iDataSize = Math.floor(iDataSize / 256);
		strHeader += sc(iDataSize % 256); iDataSize = Math.floor(iDataSize / 256);
		strHeader += sc(iDataSize % 256); iDataSize = Math.floor(iDataSize / 256);
		strHeader += sc(iDataSize % 256); 
	
		strHeader += sc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); // these bytes are not used
	
		var aImgData = oData.data,
		    strPixelData = "",
		    c, x, y = iHeight,
		    iOffsetX, iOffsetY, strPixelRow;
		
		do {
			iOffsetY = iWidth*(y-1)*4;
			strPixelRow = "";
			for (x = 0; x < iWidth; x++) {
				iOffsetX = 4*x;
				strPixelRow += sc(
					aImgData[iOffsetY + iOffsetX + 2], // B
					aImgData[iOffsetY + iOffsetX + 1], // G
					aImgData[iOffsetY + iOffsetX],     // R
					aImgData[iOffsetY + iOffsetX + 3]  // A
				);
			}
			strPixelData += strPixelRow;
		} while (--y);

		return encodeData(strHeader + strPixelData);
	}

	// sends the generated file to the client
	var saveFile = function(strData) {
		if (!window.open(strData)) {
			document.location.href = strData;
		}
	}

	var makeDataURI = function(strData, strMime) {
		return "data:" + strMime + ";base64," + strData;
	}

	// generates a <img> object containing the imagedata
	var makeImageObject = function(strSource) {
		var oImgElement = document.createElement("img");
		oImgElement.src = strSource;
		return oImgElement;
	}

	var scaleCanvas = function(oCanvas, iWidth, iHeight) {
		if (iWidth && iHeight) {
			var oSaveCanvas = document.createElement("canvas");
			
			oSaveCanvas.width = iWidth;
			oSaveCanvas.height = iHeight;
			oSaveCanvas.style.width = iWidth+"px";
			oSaveCanvas.style.height = iHeight+"px";

			var oSaveCtx = oSaveCanvas.getContext("2d");

			oSaveCtx.drawImage(oCanvas, 0, 0, oCanvas.width, oCanvas.height, 0, 0, iWidth, iWidth);
			
			return oSaveCanvas;
		}
		return oCanvas;
	}

	return {
		saveAsPNG : function(oCanvas, bReturnImg, iWidth, iHeight) {
			if (!bHasDataURL) return false;
			
			var oScaledCanvas = scaleCanvas(oCanvas, iWidth, iHeight),
          strMime = "image/png",
			    strData = oScaledCanvas.toDataURL(strMime);
				
			if (bReturnImg) {
				return makeImageObject(strData);
			} else {
				saveFile(bReplaceDownloadMime ? strData.replace(strMime, strDownloadMime) : strData);
			}
			return true;
		},

		saveAsJPEG : function(oCanvas, bReturnImg, iWidth, iHeight) {
			if (!bHasDataURL) return false;

			var oScaledCanvas = scaleCanvas(oCanvas, iWidth, iHeight),
			    strMime = "image/jpeg",
			    strData = oScaledCanvas.toDataURL(strMime);
	
			// check if browser actually supports jpeg by looking for the mime type in the data uri. if not, return false
			if (strData.indexOf(strMime) != 5) return false;

			if (bReturnImg) {
				return makeImageObject(strData);
			} else {
        saveFile(bReplaceDownloadMime ? strData.replace(strMime, strDownloadMime) : strData);
			}
			return true;
		},

		saveAsBMP : function(oCanvas, bReturnImg, iWidth, iHeight) {
			if (!(bHasDataURL && bHasImageData && bHasBase64)) return false;

			var oScaledCanvas = scaleCanvas(oCanvas, iWidth, iHeight),
          strMime = "image/bmp",
			    oData = readCanvasData(oScaledCanvas),
			    strImgData = createBMP(oData);
				
			if (bReturnImg) {
				return makeImageObject(makeDataURI(strImgData, strMime));
			} else {
        saveFile(makeDataURI(strImgData, strMime));
			}
			return true;
		}
	};
})();

/**
 * This code is released to the public domain by Jim Studt, 2007.
 * He may keep some sort of up to date copy at http://www.federated.com/~jim/canvastext/
 * It as been modified by Fabien Ménager to handle font style like size, weight, color and rotation. 
 * A partial support for special characters has been added too.
 */
var CanvasText = {
	/** The letters definition. It is a list of letters, 
	 * with their width, and the coordinates of points compositing them.
	 * The syntax for the points is : [x, y], null value means "pen up"
	 */
	letters: {
		'\n':{ width: -1, points: [] },
		' ': { width: 10, points: [] },
		'!': { width: 10, points: [[5,21],[5,7],null,[5,2],[4,1],[5,0],[6,1],[5,2]] },
		'"': { width: 16, points: [[4,21],[4,14],null,[12,21],[12,14]] },
		'#': { width: 21, points: [[11,25],[4,-7],null,[17,25],[10,-7],null,[4,12],[18,12],null,[3,6],[17,6]] },
		'$': { width: 20, points: [[8,25],[8,-4],null,[12,25],[12,-4],null,[17,18],[15,20],[12,21],[8,21],[5,20],[3,18],[3,16],[4,14],[5,13],[7,12],[13,10],[15,9],[16,8],[17,6],[17,3],[15,1],[12,0],[8,0],[5,1],[3,3]] },
		'%': { width: 24, points: [[21,21],[3,0],null,[8,21],[10,19],[10,17],[9,15],[7,14],[5,14],[3,16],[3,18],[4,20],[6,21],[8,21],null,[17,7],[15,6],[14,4],[14,2],[16,0],[18,0],[20,1],[21,3],[21,5],[19,7],[17,7]] },
		'&': { width: 26, points: [[23,12],[23,13],[22,14],[21,14],[20,13],[19,11],[17,6],[15,3],[13,1],[11,0],[7,0],[5,1],[4,2],[3,4],[3,6],[4,8],[5,9],[12,13],[13,14],[14,16],[14,18],[13,20],[11,21],[9,20],[8,18],[8,16],[9,13],[11,10],[16,3],[18,1],[20,0],[22,0],[23,1],[23,2]] },
		'\'':{ width: 10, points: [[5,19],[4,20],[5,21],[6,20],[6,18],[5,16],[4,15]] },
		'(': { width: 14, points: [[11,25],[9,23],[7,20],[5,16],[4,11],[4,7],[5,2],[7,-2],[9,-5],[11,-7]] },
		')': { width: 14, points: [[3,25],[5,23],[7,20],[9,16],[10,11],[10,7],[9,2],[7,-2],[5,-5],[3,-7]] },
		'*': { width: 16, points: [[8,21],[8,9],null,[3,18],[13,12],null,[13,18],[3,12]] },
		'+': { width: 26, points: [[13,18],[13,0],null,[4,9],[22,9]] },
		',': { width: 10, points: [[6,1],[5,0],[4,1],[5,2],[6,1],[6,-1],[5,-3],[4,-4]] },
		'-': { width: 26, points: [[4,9],[22,9]] },
		'.': { width: 10, points: [[5,2],[4,1],[5,0],[6,1],[5,2]] },
		'/': { width: 22, points: [[20,25],[2,-7]] },
		'0': { width: 20, points: [[9,21],[6,20],[4,17],[3,12],[3,9],[4,4],[6,1],[9,0],[11,0],[14,1],[16,4],[17,9],[17,12],[16,17],[14,20],[11,21],[9,21]] },
		'1': { width: 20, points: [[6,17],[8,18],[11,21],[11,0]] },
		'2': { width: 20, points: [[4,16],[4,17],[5,19],[6,20],[8,21],[12,21],[14,20],[15,19],[16,17],[16,15],[15,13],[13,10],[3,0],[17,0]] },
		'3': { width: 20, points: [[5,21],[16,21],[10,13],[13,13],[15,12],[16,11],[17,8],[17,6],[16,3],[14,1],[11,0],[8,0],[5,1],[4,2],[3,4]] },
		'4': { width: 20, points: [[13,21],[3,7],[18,7],null,[13,21],[13,0]] },
		'5': { width: 20, points: [[15,21],[5,21],[4,12],[5,13],[8,14],[11,14],[14,13],[16,11],[17,8],[17,6],[16,3],[14,1],[11,0],[8,0],[5,1],[4,2],[3,4]] },
		'6': { width: 20, points: [[16,18],[15,20],[12,21],[10,21],[7,20],[5,17],[4,12],[4,7],[5,3],[7,1],[10,0],[11,0],[14,1],[16,3],[17,6],[17,7],[16,10],[14,12],[11,13],[10,13],[7,12],[5,10],[4,7]] },
		'7': { width: 20, points: [[17,21],[7,0],null,[3,21],[17,21]] },
		'8': { width: 20, points: [[8,21],[5,20],[4,18],[4,16],[5,14],[7,13],[11,12],[14,11],[16,9],[17,7],[17,4],[16,2],[15,1],[12,0],[8,0],[5,1],[4,2],[3,4],[3,7],[4,9],[6,11],[9,12],[13,13],[15,14],[16,16],[16,18],[15,20],[12,21],[8,21]] },
		'9': { width: 20, points: [[16,14],[15,11],[13,9],[10,8],[9,8],[6,9],[4,11],[3,14],[3,15],[4,18],[6,20],[9,21],[10,21],[13,20],[15,18],[16,14],[16,9],[15,4],[13,1],[10,0],[8,0],[5,1],[4,3]] },
		':': { width: 10, points: [[5,14],[4,13],[5,12],[6,13],[5,14],null,[5,2],[4,1],[5,0],[6,1],[5,2]] },
		';': { width: 10, points: [[5,14],[4,13],[5,12],[6,13],[5,14],null,[6,1],[5,0],[4,1],[5,2],[6,1],[6,-1],[5,-3],[4,-4]] },
		'<': { width: 24, points: [[20,18],[4,9],[20,0]] },
		'=': { width: 26, points: [[4,12],[22,12],null,[4,6],[22,6]] },
		'>': { width: 24, points: [[4,18],[20,9],[4,0]] },
		'?': { width: 18, points: [[3,16],[3,17],[4,19],[5,20],[7,21],[11,21],[13,20],[14,19],[15,17],[15,15],[14,13],[13,12],[9,10],[9,7],null,[9,2],[8,1],[9,0],[10,1],[9,2]] },
		'@': { width: 27, points: [[18,13],[17,15],[15,16],[12,16],[10,15],[9,14],[8,11],[8,8],[9,6],[11,5],[14,5],[16,6],[17,8],null,[12,16],[10,14],[9,11],[9,8],[10,6],[11,5],null,[18,16],[17,8],[17,6],[19,5],[21,5],[23,7],[24,10],[24,12],[23,15],[22,17],[20,19],[18,20],[15,21],[12,21],[9,20],[7,19],[5,17],[4,15],[3,12],[3,9],[4,6],[5,4],[7,2],[9,1],[12,0],[15,0],[18,1],[20,2],[21,3],null,[19,16],[18,8],[18,6],[19,5]] },
		'A': { width: 18, points: [[9,21],[1,0],null,[9,21],[17,0],null,[4,7],[14,7]] },
		'B': { width: 21, points: [[4,21],[4,0],null,[4,21],[13,21],[16,20],[17,19],[18,17],[18,15],[17,13],[16,12],[13,11],null,[4,11],[13,11],[16,10],[17,9],[18,7],[18,4],[17,2],[16,1],[13,0],[4,0]] },
		'C': { width: 21, points: [[18,16],[17,18],[15,20],[13,21],[9,21],[7,20],[5,18],[4,16],[3,13],[3,8],[4,5],[5,3],[7,1],[9,0],[13,0],[15,1],[17,3],[18,5]] },
		'D': { width: 21, points: [[4,21],[4,0],null,[4,21],[11,21],[14,20],[16,18],[17,16],[18,13],[18,8],[17,5],[16,3],[14,1],[11,0],[4,0]] },
		'E': { width: 19, points: [[4,21],[4,0],null,[4,21],[17,21],null,[4,11],[12,11],null,[4,0],[17,0]] },
		'F': { width: 18, points: [[4,21],[4,0],null,[4,21],[17,21],null,[4,11],[12,11]] },
		'G': { width: 21, points: [[18,16],[17,18],[15,20],[13,21],[9,21],[7,20],[5,18],[4,16],[3,13],[3,8],[4,5],[5,3],[7,1],[9,0],[13,0],[15,1],[17,3],[18,5],[18,8],null,[13,8],[18,8]] },
		'H': { width: 22, points: [[4,21],[4,0],null,[18,21],[18,0],null,[4,11],[18,11]] },
		'I': { width: 8,  points: [[4,21],[4,0]] },
		'J': { width: 16, points: [[12,21],[12,5],[11,2],[10,1],[8,0],[6,0],[4,1],[3,2],[2,5],[2,7]] },
		'K': { width: 21, points: [[4,21],[4,0],null,[18,21],[4,7],null,[9,12],[18,0]] },
		'L': { width: 17, points: [[4,21],[4,0],null,[4,0],[16,0]] },
		'M': { width: 24, points: [[4,21],[4,0],null,[4,21],[12,0],null,[20,21],[12,0],null,[20,21],[20,0]] },
		'N': { width: 22, points: [[4,21],[4,0],null,[4,21],[18,0],null,[18,21],[18,0]] },
		'O': { width: 22, points: [[9,21],[7,20],[5,18],[4,16],[3,13],[3,8],[4,5],[5,3],[7,1],[9,0],[13,0],[15,1],[17,3],[18,5],[19,8],[19,13],[18,16],[17,18],[15,20],[13,21],[9,21]] },
		'P': { width: 21, points: [[4,21],[4,0],null,[4,21],[13,21],[16,20],[17,19],[18,17],[18,14],[17,12],[16,11],[13,10],[4,10]] },
		'Q': { width: 22, points: [[9,21],[7,20],[5,18],[4,16],[3,13],[3,8],[4,5],[5,3],[7,1],[9,0],[13,0],[15,1],[17,3],[18,5],[19,8],[19,13],[18,16],[17,18],[15,20],[13,21],[9,21],null,[12,4],[18,-2]] },
		'R': { width: 21, points: [[4,21],[4,0],null,[4,21],[13,21],[16,20],[17,19],[18,17],[18,15],[17,13],[16,12],[13,11],[4,11],null,[11,11],[18,0]] },
		'S': { width: 20, points: [[17,18],[15,20],[12,21],[8,21],[5,20],[3,18],[3,16],[4,14],[5,13],[7,12],[13,10],[15,9],[16,8],[17,6],[17,3],[15,1],[12,0],[8,0],[5,1],[3,3]] },
		'T': { width: 16, points: [[8,21],[8,0],null,[1,21],[15,21]] },
		'U': { width: 22, points: [[4,21],[4,6],[5,3],[7,1],[10,0],[12,0],[15,1],[17,3],[18,6],[18,21]] },
		'V': { width: 18, points: [[1,21],[9,0],null,[17,21],[9,0]] },
		'W': { width: 24, points: [[2,21],[7,0],null,[12,21],[7,0],null,[12,21],[17,0],null,[22,21],[17,0]] },
		'X': { width: 20, points: [[3,21],[17,0],null,[17,21],[3,0]] },
		'Y': { width: 18, points: [[1,21],[9,11],[9,0],null,[17,21],[9,11]] },
		'Z': { width: 20, points: [[17,21],[3,0],null,[3,21],[17,21],null,[3,0],[17,0]] },
		'[': { width: 14, points: [[4,25],[4,-7],null,[5,25],[5,-7],null,[4,25],[11,25],null,[4,-7],[11,-7]] },
		'\\':{ width: 14, points: [[0,21],[14,-3]] },
		']': { width: 14, points: [[9,25],[9,-7],null,[10,25],[10,-7],null,[3,25],[10,25],null,[3,-7],[10,-7]] },
		'^': { width: 14, points: [[3,10],[8,18],[13,10]] },
		'_': { width: 16, points: [[0,-2],[16,-2]] },
		'`': { width: 10, points: [[6,21],[5,20],[4,18],[4,16],[5,15],[6,16],[5,17]] },
		'a': { width: 19, points: [[15,14],[15,0],null,[15,11],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'b': { width: 19, points: [[4,21],[4,0],null,[4,11],[6,13],[8,14],[11,14],[13,13],[15,11],[16,8],[16,6],[15,3],[13,1],[11,0],[8,0],[6,1],[4,3]] },
		'c': { width: 18, points: [[15,11],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'd': { width: 19, points: [[15,21],[15,0],null,[15,11],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'e': { width: 18, points: [[3,8],[15,8],[15,10],[14,12],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'f': { width: 12, points: [[10,21],[8,21],[6,20],[5,17],[5,0],null,[2,14],[9,14]] },
		'g': { width: 19, points: [[15,14],[15,-2],[14,-5],[13,-6],[11,-7],[8,-7],[6,-6],null,[15,11],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'h': { width: 19, points: [[4,21],[4,0],null,[4,10],[7,13],[9,14],[12,14],[14,13],[15,10],[15,0]] },
		'i': { width: 8,  points: [[3,21],[4,20],[5,21],[4,22],[3,21],null,[4,14],[4,0]] },
		'j': { width: 10, points: [[5,21],[6,20],[7,21],[6,22],[5,21],null,[6,14],[6,-3],[5,-6],[3,-7],[1,-7]] },
		'k': { width: 17, points: [[4,21],[4,0],null,[14,14],[4,4],null,[8,8],[15,0]] },
		'l': { width: 8,  points: [[4,21],[4,0]] },
		'm': { width: 30, points: [[4,14],[4,0],null,[4,10],[7,13],[9,14],[12,14],[14,13],[15,10],[15,0],null,[15,10],[18,13],[20,14],[23,14],[25,13],[26,10],[26,0]] },
		'n': { width: 19, points: [[4,14],[4,0],null,[4,10],[7,13],[9,14],[12,14],[14,13],[15,10],[15,0]] },
		'o': { width: 19, points: [[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3],[16,6],[16,8],[15,11],[13,13],[11,14],[8,14]] },
		'p': { width: 19, points: [[4,14],[4,-7],null,[4,11],[6,13],[8,14],[11,14],[13,13],[15,11],[16,8],[16,6],[15,3],[13,1],[11,0],[8,0],[6,1],[4,3]] },
		'q': { width: 19, points: [[15,14],[15,-7],null,[15,11],[13,13],[11,14],[8,14],[6,13],[4,11],[3,8],[3,6],[4,3],[6,1],[8,0],[11,0],[13,1],[15,3]] },
		'r': { width: 13, points: [[4,14],[4,0],null,[4,8],[5,11],[7,13],[9,14],[12,14]] },
		's': { width: 17, points: [[14,11],[13,13],[10,14],[7,14],[4,13],[3,11],[4,9],[6,8],[11,7],[13,6],[14,4],[14,3],[13,1],[10,0],[7,0],[4,1],[3,3]] },
		't': { width: 12, points: [[5,21],[5,4],[6,1],[8,0],[10,0],null,[2,14],[9,14]] },
		'u': { width: 19, points: [[4,14],[4,4],[5,1],[7,0],[10,0],[12,1],[15,4],null,[15,14],[15,0]] },
		'v': { width: 16, points: [[2,14],[8,0],null,[14,14],[8,0]] },
		'w': { width: 22, points: [[3,14],[7,0],null,[11,14],[7,0],null,[11,14],[15,0],null,[19,14],[15,0]] },
		'x': { width: 17, points: [[3,14],[14,0],null,[14,14],[3,0]] },
		'y': { width: 16, points: [[2,14],[8,0],null,[14,14],[8,0],[6,-4],[4,-6],[2,-7],[1,-7]] },
		'z': { width: 17, points: [[14,14],[3,0],null,[3,14],[14,14],null,[3,0],[14,0]] },
		'{': { width: 14, points: [[9,25],[7,24],[6,23],[5,21],[5,19],[6,17],[7,16],[8,14],[8,12],[6,10],null,[7,24],[6,22],[6,20],[7,18],[8,17],[9,15],[9,13],[8,11],[4,9],[8,7],[9,5],[9,3],[8,1],[7,0],[6,-2],[6,-4],[7,-6],null,[6,8],[8,6],[8,4],[7,2],[6,1],[5,-1],[5,-3],[6,-5],[7,-6],[9,-7]] },
		'|': { width: 8,  points: [[4,25],[4,-7]] },
		'}': { width: 14, points: [[5,25],[7,24],[8,23],[9,21],[9,19],[8,17],[7,16],[6,14],[6,12],[8,10],null,[7,24],[8,22],[8,20],[7,18],[6,17],[5,15],[5,13],[6,11],[10,9],[6,7],[5,5],[5,3],[6,1],[7,0],[8,-2],[8,-4],[7,-6],null,[8,8],[6,6],[6,4],[7,2],[8,1],[9,-1],[9,-3],[8,-5],[7,-6],[5,-7]] },
		'~': { width: 24, points: [[3,6],[3,8],[4,11],[6,12],[8,12],[10,11],[14,8],[16,7],[18,7],[20,8],[21,10],null,[3,8],[4,10],[6,11],[8,11],[10,10],[14,7],[16,6],[18,6],[20,7],[21,10],[21,12]] },
		'é': { diacritic: '´', letter: 'e' },
		'è': { diacritic: '`', letter: 'e' },
		'ê': { diacritic: '^', letter: 'e' },
		'ë': { diacritic: '¨', letter: 'e' },
		'à': { diacritic: '`', letter: 'a' },
		'â': { diacritic: '^', letter: 'a' },
		'ç': { diacritic: '¸', letter: 'c' },
		'ñ': { diacritic: '~', letter: 'n' },
		'ô': { diacritic: '^', letter: 'o' },
		'É': { diacritic: '´', letter: 'E' },
		'È': { diacritic: '`', letter: 'E' },
		'Ê': { diacritic: '^', letter: 'E' },
		'Ë': { diacritic: '¨', letter: 'E' },
		'À': { diacritic: '`', letter: 'A' },
		'Ç': { diacritic: '¸', letter: 'C' },
		'Ñ': { diacritic: '~', letter: 'N' },
		'Ô': { diacritic: '^', letter: 'O' }
	},
	
	specialchars: {
		'pi': { width: 19, points: [[6,14],[6,0],null,[14,14],[14,0],null,[2,13],[6,16],[13,13],[17,16]] }
	},
	
	/** Diacritics, used to draw accentuated letters */
	diacritics: {
		'¸': { entity: 'cedil', points: [[6,-4],[4,-6],[2,-7],[1,-7]] },
		'´': { entity: 'acute', points: [[8,19],[13,22]] },
		'`': { entity: 'grave', points: [[7,22],[12,19]] },
		'^': { entity: 'circ',	points: [[5.5,19],[9.5,23],[12.5,19]] },
		'¨': { entity: 'trema', points: [[5,21],[6,20],[7,21],[6,22],[5,21],null,[12,21],[13,20],[14,21],[13,22],[12,21]] },
		'~': { entity: 'tilde', points: [[4,18],[7,22],[10,18],[13,22]] }
	},
	
	/** The default font styling */
	style: {
		size: 8,            // font height in pixels
		font: null,         // not yet implemented
		color: '#000000',   // font color
		weight: 1,          // float, 1 for 'normal'
		halign: 'l',        // l: left, r: right, c: center
		valign: 'b',        // t: top, m: middle, b: bottom 
		adjustAlign: false, // modifies the alignments if the angle is different from 0 to make the spin point always at the good position
		angle: 0,           // in radians, anticlockwise
		tracking: 1,        // space between the letters, float, 1 for 'normal'
		boundingBoxColor: '#ff0000', // color of the bounding box (null to hide), can be used for debug and font drawing
		originPointColor: '#000000'  // color of the bounding box (null to hide), can be used for debug and font drawing
	},
	
	debug: false,
	_bufferLexemes: {},
	
	/** Get the letter data corresponding to a char
	 * @param {String} ch - The char
	 */
	letter: function(ch) {
		return CanvasText.letters[ch];
	},
	
	parseLexemes: function(str) {
		if (CanvasText._bufferLexemes[str]) 
			return CanvasText._bufferLexemes[str];
		
		var i, c, matches = str.match(/&[A-Za-z]{2,5};|\s|./g);
		var result = [], chars = [];
		for (i = 0; i < matches.length; i++) {
			c = matches[i];
			if (c.length == 1) 
				chars.push(c);
			else {
				var entity = c.substring(1, c.length-1);
				if (CanvasText.specialchars[entity]) 
					chars.push(entity);
				else
					chars = chars.concat(c.toArray());
			}
		}
		for (i = 0; i < chars.length; i++) {
			c = chars[i];
			if (c = CanvasText.letters[c] || CanvasText.specialchars[c]) result.push(c);
		}
		return CanvasText._bufferLexemes[str] = result.compact();
	},

	/** Get the font ascent for a given style
	 * @param {Object} style - The reference style
	 */
	ascent: function(style) {
		style = style || {};
		return (style.size || CanvasText.style.size);
	},
	
	/** Get the font descent for a given style 
	 * @param {Object} style - The reference style
	 * */
	descent: function(style) {
		style = style || {};
		return 7.0*(style.size || CanvasText.style.size)/25.0;
	},
	
	/** Measure the text horizontal size 
	 * @param {String} str - The text
	 * @param {Object} style - Text style
	 * */
	measure: function(str, style) {
		if (!str) return;
		style = style || {};
		
		var i, width, lexemes = CanvasText.parseLexemes(str),
				total = 0;

		for (i = lexemes.length-1; i > -1; --i) {
			c = lexemes[i];
			width = (c.diacritic) ? CanvasText.letter(c.letter).width : c.width;
			total += width * (style.tracking || CanvasText.style.tracking) * (style.size || CanvasText.style.size) / 25.0;
		}
		return total;
	},
	
	getDimensions: function(str, style) {
		var width = CanvasText.measure(str, style),
				height = style.size || CanvasText.style.size,
				angle = style.angle || CanvasText.style.angle;

		if (style.angle == 0) return {width: width, height: height};
		return {
			width:	Math.abs(Math.cos(angle) * width) + Math.abs(Math.sin(angle) * height),
			height: Math.abs(Math.sin(angle) * width) + Math.abs(Math.cos(angle) * height)
		}
	},
	
	getBestAlign: function(angle, style) {
		angle += CanvasText.getAngleFromAlign(style.halign, style.valign);
		var a = {h:'c', v:'m'};
		if (Math.round(Math.cos(angle)*1000)/1000 != 0) 
			a.h = (Math.cos(angle) > 0 ? 'r' : 'l');
		
		if (Math.round(Math.sin(angle)*1000)/1000 != 0) 
			a.v = (Math.sin(angle) > 0 ? 't' : 'b');
		return a;
	},
	
	getAngleFromAlign: function(halign, valign) {
		var pi = Math.PI, table = {
			'rm': 0,
			'rt': pi/4,
			'ct': pi/2,
			'lt': 3*(pi/4),
			'lm': pi,
			'lb': -3*(pi/4),
			'cb': -pi/2,
			'rb': -pi/4,
			'cm': 0
		}
		return table[halign+valign];
	},
	
	/** Draws serie of points at given coordinates 
	 * @param {Canvas context} ctx - The canvas context
	 * @param {Array} points - The points to draw
	 * @param {Number} x - The X coordinate
	 * @param {Number} y - The Y coordinate
	 * @param {Number} mag - The scale 
	 */
	drawPoints: function (ctx, points, x, y, mag, offset) {
		var i, a, penUp = true, needStroke = 0;
		offset = offset || {x:0, y:0};
		
		ctx.beginPath();
		for (i = 0; i < points.length; i++) {
			a = points[i];
			if (!a) {
				penUp = true;
				continue;
			}
			if (penUp) {
				ctx.moveTo(x + a[0]*mag + offset.x, y - a[1]*mag + offset.y);
				penUp = false;
			}
			else {
				ctx.lineTo(x + a[0]*mag + offset.x, y - a[1]*mag + offset.y);
			}
		}
		ctx.stroke();
	},
	
	/** Draws a text at given coordinates and with a given style
	 * @param {String} str - The text to draw
	 * @param {Number} xOrig - The X coordinate
	 * @param {Number} yOrig - The Y coordinate
	 * @param {Object} style - The font style
	 */
	draw: function(str, xOrig, yOrig, style) {
		if (!str) return;
		style = style || CanvasText.style;
		style.halign = style.halign || CanvasText.style.halign;
		style.valign = style.valign || CanvasText.style.valign;
		style.angle = style.angle || CanvasText.style.angle;
		style.size = style.size || CanvasText.style.size;
		style.adjustAlign = style.adjustAlign || CanvasText.style.adjustAlign;
		
		var i, c, total = 0,
		    mag = style.size / 25.0,
		    x = 0, y = 0,
		    lexemes = CanvasText.parseLexemes(str),
			offset = {x:0, y:0}, 
		    measure = CanvasText.measure(str, style),
		    align;
				
		if (style.adjustAlign) {
			align = CanvasText.getBestAlign(style.angle, style);
			style.halign = align.h;
			style.valign = align.v;
		}
				
		switch (style.halign) {
			case 'l': break;
			case 'c': offset.x = -measure / 2; break;
			case 'r': offset.x = -measure; break;
		}
		
		switch (style.valign) {
			case 'b': break;
			case 'm': offset.y = style.size / 2; break;
			case 't': offset.y = style.size; break;
		}
		
		this.save();
		this.translate(xOrig, yOrig);
		this.rotate(style.angle);
		this.lineCap = "round";
		this.lineWidth = 2.0 * mag * (style.weight || CanvasText.style.weight);
		this.strokeStyle = style.color || CanvasText.style.color;
		
		for (i = 0; i < lexemes.length; i++) {
			c = lexemes[i];
			if (c.width == -1) {
				x = 0;
				y = style.size * 1.4;
				continue;
			}
		
			var points = c.points,
			    width = c.width;
					
			if (c.diacritic) {
				var dia = CanvasText.diacritics[c.diacritic],
				    character = CanvasText.letter(c.letter);

				CanvasText.drawPoints(this, dia.points, x, y - (c.letter.toUpperCase() == c.letter ? 3 : 0), mag, offset);
				points = character.points;
				width = character.width;
			}

			CanvasText.drawPoints(this, points, x, y, mag, offset);
			
			if (CanvasText.debug) {
				this.save();
				this.lineJoin = "miter";
				this.lineWidth = 0.5;
				this.strokeStyle = (style.boundingBoxColor || CanvasText.style.boundingBoxColor);
				this.strokeRect(x+offset.x, y+offset.y, width*mag, -style.size);
				
				this.fillStyle = (style.originPointColor || CanvasText.style.originPointColor);
				this.beginPath();
				this.arc(0, 0, 1.5, 0, Math.PI*2, true);
				this.fill();
				this.restore();
			}
			
			x += width*mag*(style.tracking || CanvasText.style.tracking);
		}
		this.restore();
		return total;
	}
};

/** The text functions are bound to the CanvasRenderingContext2D prototype */
CanvasText.proto = window.CanvasRenderingContext2D ? window.CanvasRenderingContext2D.prototype : document.createElement('canvas').getContext('2d').__proto__;
if (CanvasText.proto) {
	CanvasText.proto.drawText      = CanvasText.draw;
	CanvasText.proto.measureText   = CanvasText.measure;
	CanvasText.proto.getTextBounds = CanvasText.getDimensions;
	CanvasText.proto.fontAscent    = CanvasText.ascent;
	CanvasText.proto.fontDescent   = CanvasText.descent;
}

/*
*
* Copyright (c) 2007 Andrew Tetlaw & Millstream Web Software
* http://www.millstream.com.au/view/code/tablekit/
* Version: 1.3b 2008-03-23
* 
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* * 
*/

// Use the TableKit class constructure if you'd prefer to init your tables as JS objects
var TableKit = Class.create();

TableKit.prototype = {
	initialize : function(elm, options) {
		var table = $(elm);
		if(table.tagName !== "TABLE") {
			return;
		}
		TableKit.register(table,Object.extend(TableKit.options,options || {}));
		this.id = table.id;
		var op = TableKit.option('sortable resizable editable', this.id);
		if(op.sortable) {
			TableKit.Sortable.init(table);
		} 
		if(op.resizable) {
			TableKit.Resizable.init(table);
		}
		if(op.editable) {
			TableKit.Editable.init(table);
		}
	},
	sort : function(column, order) {
		TableKit.Sortable.sort(this.id, column, order);
	},
	resizeColumn : function(column, w) {
		TableKit.Resizable.resize(this.id, column, w);
	},
	editCell : function(row, column) {
		TableKit.Editable.editCell(this.id, row, column);
	}
};

Object.extend(TableKit, {
	getBodyRows : function(table) {
		table = $(table);
		var id = table.id;
		if(!TableKit.tables[id].dom.rows) {
			TableKit.tables[id].dom.rows = (table.tHead && table.tHead.rows.length > 0) ? $A(table.tBodies[0].rows) : $A(table.rows).without(table.rows[0]);
		}
		return TableKit.tables[id].dom.rows;
	},
	getHeaderCells : function(table, cell) {
		if(!table) { table = $(cell).up('table'); }
		var id = table.id;
		if(!TableKit.tables[id].dom.head) {
			TableKit.tables[id].dom.head = $A((table.tHead && table.tHead.rows.length > 0) ? table.tHead.rows[table.tHead.rows.length-1].cells : table.rows[0].cells);
		}
		return TableKit.tables[id].dom.head;
	},
	getCellIndex : function(cell) {
		return $A(cell.parentNode.cells).indexOf(cell);
	},
	getRowIndex : function(row) {
		return $A(row.parentNode.rows).indexOf(row);
	},
	getCellText : function(cell, refresh) {
		if(!cell) { return ""; }
		var data = TableKit.getCellData(cell);
		if(refresh || data.refresh || !data.textContent) {
			data.textContent = cell.textContent ? cell.textContent : cell.innerText;
			data.refresh = false;
		}
		return data.textContent;
	},
	getCellData : function(cell) {
	  var t = null;
		if(!cell.id) {
			t = $(cell).up('table');
			cell.id = t.id + "-cell-" + TableKit._getc();
		}
		var tblid = t ? t.id : cell.id.match(/(.*)-cell.*/)[1];
		if(!TableKit.tables[tblid].dom.cells[cell.id]) {
			TableKit.tables[tblid].dom.cells[cell.id] = {textContent : '', htmlContent : '', active : false};
		}
		return TableKit.tables[tblid].dom.cells[cell.id];
	},
	register : function(table, options) {
		if(!table.id) {
			table.id = "tablekit-table-" + TableKit._getc();
		}
		var id = table.id;
		TableKit.tables[id] = TableKit.tables[id] ? 
		                        Object.extend(TableKit.tables[id], options || {}) : 
		                        Object.extend(
		                          {dom : {head:null,rows:null,cells:{}},sortable:false,resizable:false,editable:false},
		                          options || {}
		                        );
	},
	notify : function(eventName, table, event) {
		if(TableKit.tables[table.id] &&  TableKit.tables[table.id].observers && TableKit.tables[table.id].observers[eventName]) {
			TableKit.tables[table.id].observers[eventName](table, event);
		}
		TableKit.options.observers[eventName](table, event)();
	},
	isSortable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].sortable : false;
	},
	isResizable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].resizable : false;
	},
	isEditable : function(table) {
		return TableKit.tables[table.id] ? TableKit.tables[table.id].editable : false;
	},
	setup : function(o) {
		Object.extend(TableKit.options, o || {} );
	},
	option : function(s, id, o1, o2) {
		o1 = o1 || TableKit.options;
		o2 = o2 || (id ? (TableKit.tables[id] ? TableKit.tables[id] : {}) : {});
		var key = id + s;
		if(!TableKit._opcache[key]){
			TableKit._opcache[key] = $A($w(s)).inject([],function(a,v){
				a.push(a[v] = o2[v] || o1[v]);
				return a;
			});
		}
		return TableKit._opcache[key];
	},
	e : function(event) {
		return event || window.event;
	},
	tables : {},
	_opcache : {},
	options : {
		autoLoad : true,
		stripe : true,
		sortable : true,
		resizable : true,
		editable : true,
		rowEvenClass : 'roweven',
		rowOddClass : 'rowodd',
		sortableSelector : ['table.sortable'],
		columnClass : 'sortcol',
		descendingClass : 'sortdesc',
		ascendingClass : 'sortasc',
		defaultSortDirection : 1,
		noSortClass : 'nosort',
		sortFirstAscendingClass : 'sortfirstasc',
		sortFirstDecendingClass : 'sortfirstdesc',
		resizableSelector : ['table.resizable'],
		minWidth : 10,
		showHandle : true,
		resizeOnHandleClass : 'resize-handle-active',
		editableSelector : ['table.editable'],
		formClassName : 'editable-cell-form',
		noEditClass : 'noedit',
		editAjaxURI : '/',
		editAjaxOptions : {},
		observers : {
			'onSortStart' 	: function(){},
			'onSort' 		: function(){},
			'onSortEnd' 	: function(){},
			'onResizeStart' : function(){},
			'onResize' 		: function(){},
			'onResizeEnd' 	: function(){},
			'onEditStart' 	: function(){},
			'onEdit' 		: function(){},
			'onEditEnd' 	: function(){}
		}
	},
	_c : 0,
	_getc : function() {return TableKit._c += 1;},
	unloadTable : function(table){
	  table = $(table);
	  if(!TableKit.tables[table.id]) {return;} //if not an existing registered table return
		var cells = TableKit.getHeaderCells(table);
		var op = TableKit.option('sortable resizable editable noSortClass descendingClass ascendingClass columnClass sortFirstAscendingClass sortFirstDecendingClass', table.id);
		 //unregister all the sorting and resizing events
		cells.each(function(c){
			c = $(c);
			if(op.sortable) {
  			if(!c.hasClassName(op.noSortClass)) {
  				Event.stopObserving(c, 'mousedown', TableKit.Sortable._sort);
  				c.removeClassName(op.columnClass);
  				c.removeClassName(op.sortFirstAscendingClass);
  				c.removeClassName(op.sortFirstDecendingClass);
  				//ensure that if table reloaded current sort is remembered via sort first class name
  				if(c.hasClassName(op.ascendingClass)) {
  				  c.removeClassName(op.ascendingClass);
  				  c.addClassName(op.sortFirstAscendingClass)
  				} else if (c.hasClassName(op.descendingClass)) {
  				  c.removeClassName(op.descendingClass);
  				  c.addClassName(op.sortFirstDecendingClass)
  				}  				
  			}
		  }
		  if(op.resizable) {
  			Event.stopObserving(c, 'mouseover', TableKit.Resizable.initDetect);
  			Event.stopObserving(c, 'mouseout', TableKit.Resizable.killDetect);
		  }
		});
		//unregister the editing events and cancel any open editors
		if(op.editable) {
		  Event.stopObserving(table.tBodies[0], 'click', TableKit.Editable._editCell);
		  for(var c in TableKit.tables[table.id].dom.cells) {
		    if(TableKit.tables[table.id].dom.cells[c].active) {
		      var cell = $(c);
  	      var editor = TableKit.Editable.getCellEditor(cell);
  	      editor.cancel(cell);
		    }
  	  }
		}
		//delete the cache
		TableKit.tables[table.id].dom = {head:null,rows:null,cells:{}}; // TODO: watch this for mem leaks
	},
	reloadTable : function(table){
	  table = $(table);
	  TableKit.unloadTable(table);
	  var op = TableKit.option('sortable resizable editable', table.id);
	  if(op.sortable) {TableKit.Sortable.init(table);}
	  if(op.resizable) {TableKit.Resizable.init(table);}
	  if(op.editable) {TableKit.Editable.init(table);}
	},
	reload : function() {
	  for(var k in TableKit.tables) {
	    TableKit.reloadTable(k);
	  }
	},
	load : function() {
		if(TableKit.options.autoLoad) {
			if(TableKit.options.sortable) {
				$A(TableKit.options.sortableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Sortable.init(t);
					});
				});
			}
			if(TableKit.options.resizable) {
				$A(TableKit.options.resizableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Resizable.init(t);
					});
				});
			}
			if(TableKit.options.editable) {
				$A(TableKit.options.editableSelector).each(function(s){
					$$(s).each(function(t) {
						TableKit.Editable.init(t);
					});
				});
			}
		}
	}
});

TableKit.Rows = {
	stripe : function(table) {
		var rows = TableKit.getBodyRows(table);
		rows.each(function(r,i) {
			TableKit.Rows.addStripeClass(table,r,i);
		});
	},
	addStripeClass : function(t,r,i) {
		t = t || r.up('table');
		var op = TableKit.option('rowEvenClass rowOddClass', t.id);
		var css = ((i+1)%2 === 0 ? op[0] : op[1]);
		// using prototype's assClassName/RemoveClassName was not efficient for large tables, hence:
		var cn = r.className.split(/\s+/);
		var newCn = [];
		for(var x = 0, l = cn.length; x < l; x += 1) {
			if(cn[x] !== op[0] && cn[x] !== op[1]) { newCn.push(cn[x]); }
		}
		newCn.push(css);
		r.className = newCn.join(" ");
	}
};

TableKit.Sortable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {
			return;
		}
		TableKit.register(table,Object.extend(options || {},{sortable:true}));
		var sortFirst;
		var cells = TableKit.getHeaderCells(table);
		var op = TableKit.option('noSortClass columnClass sortFirstAscendingClass sortFirstDecendingClass', table.id);
		cells.each(function(c){
			c = $(c);
			if(!c.hasClassName(op.noSortClass)) {
				Event.observe(c, 'mousedown', TableKit.Sortable._sort);
				c.addClassName(op.columnClass);
				if(c.hasClassName(op.sortFirstAscendingClass) || c.hasClassName(op.sortFirstDecendingClass)) {
					sortFirst = c;
				}
			}
		});

		if(sortFirst) {
			if(sortFirst.hasClassName(op.sortFirstAscendingClass)) {
				TableKit.Sortable.sort(table, sortFirst, 1);
			} else {
				TableKit.Sortable.sort(table, sortFirst, -1);
			}
		} else { // just add row stripe classes
			TableKit.Rows.stripe(table);
		}
	},
	reload : function(table) {
		table = $(table);
		var cells = TableKit.getHeaderCells(table);
		var op = TableKit.option('noSortClass columnClass', table.id);
		cells.each(function(c){
			c = $(c);
			if(!c.hasClassName(op.noSortClass)) {
				Event.stopObserving(c, 'mousedown', TableKit.Sortable._sort);
				c.removeClassName(op.columnClass);
			}
		});
		TableKit.Sortable.init(table);
	},
	_sort : function(e) {
		if(TableKit.Resizable._onHandle) {return;}
		e = TableKit.e(e);
		Event.stop(e);
		var cell = Event.element(e);
		while(!(cell.tagName && cell.tagName.match(/td|th/gi))) {
			cell = cell.parentNode;
		}
		TableKit.Sortable.sort(null, cell);
	},
	sort : function(table, index, order) {
		var cell;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {
				return;
			}
			table = $(table);
			index = Math.min(table.rows[0].cells.length, index);
			index = Math.max(1, index);
			index -= 1;
			cell = (table.tHead && table.tHead.rows.length > 0) ? $(table.tHead.rows[table.tHead.rows.length-1].cells[index]) : $(table.rows[0].cells[index]);
		} else {
			cell = $(index);
			table = table ? $(table) : cell.up('table');
			index = TableKit.getCellIndex(cell);
		}
		var op = TableKit.option('noSortClass descendingClass ascendingClass defaultSortDirection', table.id);
		
		if(cell.hasClassName(op.noSortClass)) {return;}	
		//TableKit.notify('onSortStart', table);
		order = order ? order : op.defaultSortDirection;
		var rows = TableKit.getBodyRows(table);

		if(cell.hasClassName(op.ascendingClass) || cell.hasClassName(op.descendingClass)) {
			rows.reverse(); // if it was already sorted we just need to reverse it.
			order = cell.hasClassName(op.descendingClass) ? 1 : -1;
		} else {
			var datatype = TableKit.Sortable.getDataType(cell,index,table);
			var tkst = TableKit.Sortable.types;
			rows.sort(function(a,b) {
				return order * tkst[datatype].compare(TableKit.getCellText(a.cells[index]),TableKit.getCellText(b.cells[index]));
			});
		}
		var tb = table.tBodies[0];
		var tkr = TableKit.Rows;
		rows.each(function(r,i) {
			tb.appendChild(r);
			tkr.addStripeClass(table,r,i);
		});
		var hcells = TableKit.getHeaderCells(null, cell);
		$A(hcells).each(function(c,i){
			c = $(c);
			c.removeClassName(op.ascendingClass);
			c.removeClassName(op.descendingClass);
			if(index === i) {
				if(order === 1) {
					c.addClassName(op.ascendingClass);
				} else {
					c.addClassName(op.descendingClass);
				}
			}
		});
	},
	types : {},
	detectors : [],
	addSortType : function() {
		$A(arguments).each(function(o){
			TableKit.Sortable.types[o.name] = o;
		});
	},
	getDataType : function(cell,index,table) {
		cell = $(cell);
		index = (index || index === 0) ? index : TableKit.getCellIndex(cell);
		
		var colcache = TableKit.Sortable._coltypecache;
		var cache = colcache[table.id] ? colcache[table.id] : (colcache[table.id] = {});
		
		if(!cache[index]) {
			var t = false;
			// first look for a data type id on the heading row cell
			if(cell.id && TableKit.Sortable.types[cell.id]) {
				t = cell.id
			}
			if(!t) {
  			t = $w(cell.className).detect(function(n){ // then look for a data type classname on the heading row cell
  				return (TableKit.Sortable.types[n]) ? true : false;
  			});
			}
			if(!t) {
				var rows = TableKit.getBodyRows(table);
				cell = rows[0].cells[index]; // grab same index cell from body row to try and match data type
				t = TableKit.Sortable.detectors.detect(
						function(d){
							return TableKit.Sortable.types[d].detect(TableKit.getCellText(cell));
						});
			}
			cache[index] = t;
		}
		return cache[index];
	},
	_coltypecache : {}
};

TableKit.Sortable.detectors = $A($w('date-iso date date-eu date-au time currency datasize number casesensitivetext text')); // setting it here because Safari complained when I did it above...

TableKit.Sortable.Type = Class.create();
TableKit.Sortable.Type.prototype = {
	initialize : function(name, options){
		this.name = name;
		options = Object.extend({
			normal : function(v){
				return v;
			},
			pattern : /.*/
		}, options || {});
		this.normal = options.normal;
		this.pattern = options.pattern;
		if(options.compare) {
			this.compare = options.compare;
		}
		if(options.detect) {
			this.detect = options.detect;
		}
	},
	compare : function(a,b){
		return TableKit.Sortable.Type.compare(this.normal(a), this.normal(b));
	},
	detect : function(v){
		return this.pattern.test(v);
	}
};

TableKit.Sortable.Type.compare = function(a,b) {
	return a < b ? -1 : a === b ? 0 : 1;
};

TableKit.Sortable.addSortType(
	new TableKit.Sortable.Type('number', {
		pattern : /^[-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?/,
		normal : function(v) {
			// This will grab the first thing that looks like a number from a string, so you can use it to order a column of various srings containing numbers.
			v = parseFloat(v.replace(/^.*?([-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?).*$/,"$1"));
			return isNaN(v) ? 0 : v;
		}}),
	new TableKit.Sortable.Type('text',{
		normal : function(v) {
			return v ? v.toLowerCase() : '';
		}}),
	new TableKit.Sortable.Type('casesensitivetext',{pattern : /^[A-Z]+$/}),
	new TableKit.Sortable.Type('datasize',{
		pattern : /^[-+]?[\d]*\.?[\d]+(?:[eE][-+]?[\d]+)?\s?[k|m|g|t]b$/i,
		normal : function(v) {
			var r = v.match(/^([-+]?[\d]*\.?[\d]+([eE][-+]?[\d]+)?)\s?([k|m|g|t]?b)?/i);
			var b = r[1] ? Number(r[1]).valueOf() : 0;
			var m = r[3] ? r[3].substr(0,1).toLowerCase() : '';
			var result = b;
			switch(m) {
				case  'k':
					result = b * 1024;
					break;
				case  'm':				
					result = b * 1024 * 1024;
					break;
				case  'g':
					result = b * 1024 * 1024 * 1024;
					break;
				case  't':
					result = b * 1024 * 1024 * 1024 * 1024;
					break;
			}
			return result;
		}}),
	new TableKit.Sortable.Type('date-au',{
		pattern : /^\d{2}\/\d{2}\/\d{4}\s?(?:\d{1,2}\:\d{2}(?:\:\d{2})?\s?[a|p]?m?)?/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})\/(\d{2})\/(\d{4})\s?(?:(\d{1,2})\:(\d{2})(?:\:(\d{2}))?\s?([a|p]?m?))?/i);
			var yr_num = r[3];
			var mo_num = parseInt(r[2],10)-1;
			var day_num = r[1];
			var hr_num = r[4] ? r[4] : 0;
			if(r[7]) {
				var chr = parseInt(r[4],10);
				if(r[7].toLowerCase().indexOf('p') !== -1) {
					hr_num = chr < 12 ? chr + 12 : chr;
				} else if(r[7].toLowerCase().indexOf('a') !== -1) {
					hr_num = chr < 12 ? chr : 0;
				}
			} 
			var min_num = r[5] ? r[5] : 0;
			var sec_num = r[6] ? r[6] : 0;
			return new Date(yr_num, mo_num, day_num, hr_num, min_num, sec_num, 0).valueOf();
		}}),
	new TableKit.Sortable.Type('date-us',{
		pattern : /^\d{2}\/\d{2}\/\d{4}\s?(?:\d{1,2}\:\d{2}(?:\:\d{2})?\s?[a|p]?m?)?/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})\/(\d{2})\/(\d{4})\s?(?:(\d{1,2})\:(\d{2})(?:\:(\d{2}))?\s?([a|p]?m?))?/i);
			var yr_num = r[3];
			var mo_num = parseInt(r[1],10)-1;
			var day_num = r[2];
			var hr_num = r[4] ? r[4] : 0;
			if(r[7]) {
				var chr = parseInt(r[4],10);
				if(r[7].toLowerCase().indexOf('p') !== -1) {
					hr_num = chr < 12 ? chr + 12 : chr;
				} else if(r[7].toLowerCase().indexOf('a') !== -1) {
					hr_num = chr < 12 ? chr : 0;
				}
			} 
			var min_num = r[5] ? r[5] : 0;
			var sec_num = r[6] ? r[6] : 0;
			return new Date(yr_num, mo_num, day_num, hr_num, min_num, sec_num, 0).valueOf();
		}}),
	new TableKit.Sortable.Type('date-eu',{
		pattern : /^\d{2}-\d{2}-\d{4}/i,
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
			var r = v.match(/^(\d{2})-(\d{2})-(\d{4})/);
			var yr_num = r[3];
			var mo_num = parseInt(r[2],10)-1;
			var day_num = r[1];
			return new Date(yr_num, mo_num, day_num).valueOf();
		}}),
	new TableKit.Sortable.Type('date-iso',{
		pattern : /[\d]{4}-[\d]{2}-[\d]{2}(?:T[\d]{2}\:[\d]{2}(?:\:[\d]{2}(?:\.[\d]+)?)?(Z|([-+][\d]{2}:[\d]{2})?)?)?/, // 2005-03-26T19:51:34Z
		normal : function(v) {
			if(!this.pattern.test(v)) {return 0;}
		    var d = v.match(/([\d]{4})(-([\d]{2})(-([\d]{2})(T([\d]{2}):([\d]{2})(:([\d]{2})(\.([\d]+))?)?(Z|(([-+])([\d]{2}):([\d]{2})))?)?)?)?/);		
		    var offset = 0;
		    var date = new Date(d[1], 0, 1);
		    if (d[3]) { date.setMonth(d[3] - 1) ;}
		    if (d[5]) { date.setDate(d[5]); }
		    if (d[7]) { date.setHours(d[7]); }
		    if (d[8]) { date.setMinutes(d[8]); }
		    if (d[10]) { date.setSeconds(d[10]); }
		    if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
		    if (d[14]) {
		        offset = (Number(d[16]) * 60) + Number(d[17]);
		        offset *= ((d[15] === '-') ? 1 : -1);
		    }
		    offset -= date.getTimezoneOffset();
		    if(offset !== 0) {
		    	var time = (Number(date) + (offset * 60 * 1000));
		    	date.setTime(Number(time));
		    }
			return date.valueOf();
		}}),
	new TableKit.Sortable.Type('date',{
		pattern: /^(?:sun|mon|tue|wed|thu|fri|sat)\,\s\d{1,2}\s(?:jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\s\d{4}(?:\s\d{2}\:\d{2}(?:\:\d{2})?(?:\sGMT(?:[+-]\d{4})?)?)?/i, //Mon, 18 Dec 1995 17:28:35 GMT
		compare : function(a,b) { // must be standard javascript date format
			if(a && b) {
				return TableKit.Sortable.Type.compare(new Date(a),new Date(b));
			} else {
				return TableKit.Sortable.Type.compare(a ? 1 : 0, b ? 1 : 0);
			}
		}}),
	new TableKit.Sortable.Type('time',{
		pattern : /^\d{1,2}\:\d{2}(?:\:\d{2})?(?:\s[a|p]m)?$/i,
		compare : function(a,b) {
			var d = new Date();
			var ds = d.getMonth() + "/" + d.getDate() + "/" + d.getFullYear() + " ";
			return TableKit.Sortable.Type.compare(new Date(ds + a),new Date(ds + b));
		}}),
	new TableKit.Sortable.Type('currency',{
		pattern : /^[$����]/, // dollar,pound,yen,euro,generic currency symbol
		normal : function(v) {
			return v ? parseFloat(v.replace(/[^-\d\.]/g,'')) : 0;
		}})
);

TableKit.Resizable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {return;}
		TableKit.register(table,Object.extend(options || {},{resizable:true}));		 
		var cells = TableKit.getHeaderCells(table);
		cells.each(function(c){
			c = $(c);
			Event.observe(c, 'mouseover', TableKit.Resizable.initDetect);
			Event.observe(c, 'mouseout', TableKit.Resizable.killDetect);
		});
	},
	resize : function(table, index, w) {
		var cell;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {return;}
			table = $(table);
			index = Math.min(table.rows[0].cells.length, index);
			index = Math.max(1, index);
			index -= 1;
			cell = (table.tHead && table.tHead.rows.length > 0) ? $(table.tHead.rows[table.tHead.rows.length-1].cells[index]) : $(table.rows[0].cells[index]);
		} else {
			cell = $(index);
			table = table ? $(table) : cell.up('table');
			index = TableKit.getCellIndex(cell);
		}
		var pad = parseInt(cell.getStyle('paddingLeft'),10) + parseInt(cell.getStyle('paddingRight'),10);
		w = Math.max(w-pad, TableKit.option('minWidth', table.id)[0]);
		
		cell.setStyle({'width' : w + 'px'});
	},
	initDetect : function(e) {
		e = TableKit.e(e);
		var cell = Event.element(e);
		Event.observe(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.observe(cell, 'mousedown', TableKit.Resizable.startResize);
	},
	detectHandle : function(e) {
		e = TableKit.e(e);
		var cell = Event.element(e);
  		if(TableKit.Resizable.pointerPos(cell,Event.pointerX(e),Event.pointerY(e))){
  			cell.addClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
  			TableKit.Resizable._onHandle = true;
  		} else {
  			cell.removeClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
  			TableKit.Resizable._onHandle = false;
  		}
	},
	killDetect : function(e) {
		e = TableKit.e(e);
		TableKit.Resizable._onHandle = false;
		var cell = Event.element(e);
		Event.stopObserving(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.stopObserving(cell, 'mousedown', TableKit.Resizable.startResize);
		cell.removeClassName(TableKit.option('resizeOnHandleClass', cell.up('table').id)[0]);
	},
	startResize : function(e) {
		e = TableKit.e(e);
		if(!TableKit.Resizable._onHandle) {return;}
		var cell = Event.element(e);
		Event.stopObserving(cell, 'mousemove', TableKit.Resizable.detectHandle);
		Event.stopObserving(cell, 'mousedown', TableKit.Resizable.startResize);
		Event.stopObserving(cell, 'mouseout', TableKit.Resizable.killDetect);
		TableKit.Resizable._cell = cell;
		var table = cell.up('table');
		TableKit.Resizable._tbl = table;
		if(TableKit.option('showHandle', table.id)[0]) {
			TableKit.Resizable._handle = $(document.createElement('div')).addClassName('resize-handle').setStyle({
				'top' : cell.cumulativeOffset()[1] + 'px',
				'left' : Event.pointerX(e) + 'px',
				'height' : table.getDimensions().height + 'px'
			});
			document.body.appendChild(TableKit.Resizable._handle);
		}
		Event.observe(document, 'mousemove', TableKit.Resizable.drag);
		Event.observe(document, 'mouseup', TableKit.Resizable.endResize);
		Event.stop(e);
	},
	endResize : function(e) {
		e = TableKit.e(e);
		var cell = TableKit.Resizable._cell;
		TableKit.Resizable.resize(null, cell, (Event.pointerX(e) - cell.cumulativeOffset()[0]));
		Event.stopObserving(document, 'mousemove', TableKit.Resizable.drag);
		Event.stopObserving(document, 'mouseup', TableKit.Resizable.endResize);
		if(TableKit.option('showHandle', TableKit.Resizable._tbl.id)[0]) {
			$$('div.resize-handle').each(function(elm){
				document.body.removeChild(elm);
			});
		}
		Event.observe(cell, 'mouseout', TableKit.Resizable.killDetect);
		TableKit.Resizable._tbl = TableKit.Resizable._handle = TableKit.Resizable._cell = null;
		Event.stop(e);
	},
	drag : function(e) {
		e = TableKit.e(e);
		if(TableKit.Resizable._handle === null) {
			try {
				TableKit.Resizable.resize(TableKit.Resizable._tbl, TableKit.Resizable._cell, (Event.pointerX(e) - TableKit.Resizable._cell.cumulativeOffset()[0]));
			} catch(e) {}
		} else {
			TableKit.Resizable._handle.setStyle({'left' : Event.pointerX(e) + 'px'});
		}
		return false;
	},
	pointerPos : function(element, x, y) {
    	var offset = $(element).cumulativeOffset();
	    return (y >= offset[1] &&
	            y <  offset[1] + element.offsetHeight &&
	            x >= offset[0] + element.offsetWidth - 5 &&
	            x <  offset[0] + element.offsetWidth);
  	},
	_onHandle : false,
	_cell : null,
	_tbl : null,
	_handle : null
};


TableKit.Editable = {
	init : function(elm, options){
		var table = $(elm);
		if(table.tagName !== "TABLE") {return;}
		TableKit.register(table,Object.extend(options || {},{editable:true}));
		Event.observe(table.tBodies[0], 'click', TableKit.Editable._editCell);
	},
	_editCell : function(e) {
		e = TableKit.e(e);
		var cell = Event.findElement(e,'td');
		if(cell) {
			TableKit.Editable.editCell(null, cell, null, e);
		} else {
			return false;
		}
	},
	editCell : function(table, index, cindex, event) {
		var cell, row;
		if(typeof index === 'number') {
			if(!table || (table.tagName && table.tagName !== "TABLE")) {return;}
			table = $(table);
			index = Math.min(table.tBodies[0].rows.length, index);
			index = Math.max(1, index);
			index -= 1;
			cindex = Math.min(table.rows[0].cells.length, cindex);
			cindex = Math.max(1, cindex);
			cindex -= 1;
			row = $(table.tBodies[0].rows[index]);
			cell = $(row.cells[cindex]);
		} else {
			cell = $(event ? Event.findElement(event, 'td') : index);
			table = (table && table.tagName && table.tagName !== "TABLE") ? $(table) : cell.up('table');
			row = cell.up('tr');
		}
		var op = TableKit.option('noEditClass', table.id);
		if(cell.hasClassName(op.noEditClass)) {return;}
		
		var head = $(TableKit.getHeaderCells(table, cell)[TableKit.getCellIndex(cell)]);
		if(head.hasClassName(op.noEditClass)) {return;}
		
		var data = TableKit.getCellData(cell);
		if(data.active) {return;}
		data.htmlContent = cell.innerHTML;
		var ftype = TableKit.Editable.getCellEditor(null,null,head);
		ftype.edit(cell, event);
		data.active = true;
	},
	getCellEditor : function(cell, table, head) {
	  var head = head ? head : $(TableKit.getHeaderCells(table, cell)[TableKit.getCellIndex(cell)]);
	  var ftype = TableKit.Editable.types['text-input'];
		if(head.id && TableKit.Editable.types[head.id]) {
			ftype = TableKit.Editable.types[head.id];
		} else {
			var n = $w(head.className).detect(function(n){
					return (TableKit.Editable.types[n]) ? true : false;
			});
			ftype = n ? TableKit.Editable.types[n] : ftype;
		}
		return ftype;
	},
	types : {},
	addCellEditor : function(o) {
		if(o && o.name) { TableKit.Editable.types[o.name] = o; }
	}
};

TableKit.Editable.CellEditor = Class.create();
TableKit.Editable.CellEditor.prototype = {
	initialize : function(name, options){
		this.name = name;
		this.options = Object.extend({
			element : 'input',
			attributes : {name : 'value', type : 'text'},
			selectOptions : [],
			showSubmit : true,
			submitText : 'OK',
			showCancel : true,
			cancelText : 'Cancel',
			ajaxURI : null,
			ajaxOptions : null
		}, options || {});
	},
	edit : function(cell) {
		cell = $(cell);
		var op = this.options;
		var table = cell.up('table');
		
		var form = $(document.createElement("form"));
		form.id = cell.id + '-form';
		form.addClassName(TableKit.option('formClassName', table.id)[0]);
		form.onsubmit = this._submit.bindAsEventListener(this);
		
		var field = document.createElement(op.element);
			$H(op.attributes).each(function(v){
				field[v.key] = v.value;
			});
			switch(op.element) {
				case 'input':
				case 'textarea':
				field.value = TableKit.getCellText(cell);
				break;
				
				case 'select':
				var txt = TableKit.getCellText(cell);
				$A(op.selectOptions).each(function(v){
					field.options[field.options.length] = new Option(v[0], v[1]);
					if(txt === v[1]) {
						field.options[field.options.length-1].selected = 'selected';
					}
				});
				break;
			}
			form.appendChild(field);
			if(op.element === 'textarea') {
				form.appendChild(document.createElement("br"));
			}
			if(op.showSubmit) {
				var okButton = document.createElement("input");
				okButton.type = "submit";
				okButton.value = op.submitText;
				okButton.className = 'editor_ok_button';
				form.appendChild(okButton);
			}
			if(op.showCancel) {
				var cancelLink = document.createElement("a");
				cancelLink.href = "#";
				cancelLink.appendChild(document.createTextNode(op.cancelText));
				cancelLink.onclick = this._cancel.bindAsEventListener(this);
				cancelLink.className = 'editor_cancel';      
				form.appendChild(cancelLink);
			}
			cell.innerHTML = '';
			cell.appendChild(form);
	},
	_submit : function(e) {
		var cell = Event.findElement(e,'td');
		var form = Event.findElement(e,'form');
		Event.stop(e);
		this.submit(cell,form);
	},
	submit : function(cell, form) {
		var op = this.options;
		form = form ? form : cell.down('form');
		var head = $(TableKit.getHeaderCells(null, cell)[TableKit.getCellIndex(cell)]);
		var row = cell.up('tr');
		var table = cell.up('table');
		var s = '&row=' + (TableKit.getRowIndex(row)+1) + '&cell=' + (TableKit.getCellIndex(cell)+1) + '&id=' + row.id + '&field=' + head.id + '&' + Form.serialize(form);
		this.ajax = new Ajax.Updater(cell, op.ajaxURI || TableKit.option('editAjaxURI', table.id)[0], Object.extend(op.ajaxOptions || TableKit.option('editAjaxOptions', table.id)[0], {
			postBody : s,
			onComplete : function() {
				var data = TableKit.getCellData(cell);
				data.active = false;
				data.refresh = true; // mark cell cache for refreshing, in case cell contents has changed and sorting is applied
			}
		}));
	},
	_cancel : function(e) {
		var cell = Event.findElement(e,'td');
		Event.stop(e);
		this.cancel(cell);
	},
	cancel : function(cell) {
		this.ajax = null;
		var data = TableKit.getCellData(cell);
		cell.innerHTML = data.htmlContent;
		data.htmlContent = '';
		data.active = false;
	},
	ajax : null
};

TableKit.Editable.textInput = function(n,attributes) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'input',
		attributes : Object.extend({name : 'value', type : 'text'}, attributes||{})
	}));
};
TableKit.Editable.textInput('text-input');

TableKit.Editable.multiLineInput = function(n,attributes) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'textarea',
		attributes : Object.extend({name : 'value', rows : '5', cols : '20'}, attributes||{})
	}));	
};	
TableKit.Editable.multiLineInput('multi-line-input');

TableKit.Editable.selectInput = function(n,attributes,selectOptions) {
	TableKit.Editable.addCellEditor(new TableKit.Editable.CellEditor(n, {
		element : 'select',
		attributes : Object.extend({name : 'value'}, attributes||{}),
		'selectOptions' : selectOptions
	}));	
};

/*
TableKit.Bench = {
	bench : [],
	start : function(){
		TableKit.Bench.bench[0] = new Date().getTime();
	},
	end : function(s){
		TableKit.Bench.bench[1] = new Date().getTime();
		alert(s + ' ' + ((TableKit.Bench.bench[1]-TableKit.Bench.bench[0])/1000)+' seconds.') //console.log(s + ' ' + ((TableKit.Bench.bench[1]-TableKit.Bench.bench[0])/1000)+' seconds.')
		TableKit.Bench.bench = [];
	}
} */

document.observe("dom:loaded", TableKit.load);





jsonToFlotr= function(json) { 	
	for ( j = 0; j < json.series.length; j++) {
	//for (j = 0; j <= 5; j++) {
		if (json.series[j].mouse) {
		json.series[j].mouse.trackFormatter=
			function(obj){
				// when x value is a floating point number, use parseFloat()
				var x = parseInt(obj.x);
				var y = parseInt(obj.y);
				if (x>0 && this.tickers) {	
					return this.tickers[x-1];
					}
				else { return 'No Data';}
				};
	}
	}
//		json.options.legend.container='containerName'; 
		//$('containerName');
	return json;
};


var gmap=new Object;

labChart = function(lCParams) {
var mk = $H(lCParams);
mk.set('patientID', Pat['info']['pinfo']['patientID']);
mk.set('labelArea', 'label_flotrcontainer3');
new Ajax.Request('/charts/flotr.html', {  parameters: mk, evalJSON: true, onComplete: function(transport) {
    var jn=jsonToFlotr(transport.responseJSON);
    var g = Flotr.draw(	$('flotrcontainer3'), jn.series, jn.options);

  }});
	}

var pob;
symDefChart = function() {
new Ajax.Request('/charts/flotr_symDef.html', {  parameters: {patientID: Pat['info']['pinfo']['patientID'], type: 'symptoms', labelArea: 'label_flotrcontainer2b'}, evalJSON: true, onComplete: function(transport) {
  var syms=jsonToFlotr(transport.responseJSON);
//  var syms=transport.responseJSON;
 //   gmap['flotrcontainer2b']=syms.gmap;
//    alert("pid: " +transport.responseJSON.patientID + "\nRxn: " + $('rxn').value);
    var h = Flotr.draw(	$('flotrcontainer2b'), syms.series, syms.options);

  }}
  );
  

	}

var optTableTD=new Template('<td><input type="checkbox" name="graphs" value="#{keyid}" id="#{keyid}" #{selected}  /><label for="#{keyid}">#{key}</label></td>');

function fillFlotrOptions(TOptions, tblID, cols) {
	if (!cols) {cols= TOptions.length>7 ? 2 :1;}
	var TBL_HTML='<input type="hidden" name="patientID" value="'+Pat['info']['pinfo']['patientID']+'" /><input type="hidden" name="labelArea" value="label_flotrcontainer3" />';
	var ii=0;
	for (i = 0; i <= (TOptions.length/cols); i++) {
		TBL_HTML+='<tr>';
		for (td =0; td <= cols; td++) { if (TOptions[ii]) {TBL_HTML+=optTableTD.evaluate(TOptions[ii]);  ii++;} }
		TBL_HTML+='</tr>';
	}
	$(tblID).update(TBL_HTML);
}

var Provider={"info":{"Addresses":[]}};