/*  Prototype JavaScript framework, version 1.6.1
 *  (c) 2005-2009 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: '1.6.1',

  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.*Safari/.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');
      var form = document.createElement('form');
      var 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() {
  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; i < properties.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;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length) {
      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().first() == "$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;

  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(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = toJSON(object[property]);
      if (!isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  }

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

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

  function keys(object) {
    var results = [];
    for (var property in object)
      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) == "[object Array]";
  }


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

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

  function isString(object) {
    return _toString.call(object) == "[object String]";
  }

  function isNumber(object) {
    return _toString.call(object) == "[object Number]";
  }

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

  extend(Object, {
    extend:        extend,
    inspect:       inspect,
    toJSON:        toJSON,
    toQueryString: toQueryString,
    toHTML:        toHTML,
    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
  }
})());


Date.prototype.toJSON = function() {
  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"';
};


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() {

  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');
    var 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());
        var 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() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  }

  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 toJSON() {
    return this.inspect(true);
  }

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

  function isJSON() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  }

  function evalJSON(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  }

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

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

  function endsWith(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === 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 ? 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,
    toJSON:         toJSON,
    unfilterJSON:   unfilterJSON,
    isJSON:         isJSON,
    evalJSON:       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];
      var 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 : this.toArray())._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 toJSON() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.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,
    toJSON:    toJSON
  });

  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 toJSON() {
    return Object.toJSON(this.toObject());
  }

  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:                 toJSON,
    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 toJSON() {
    return isFinite(this) ? this.toString() : 'null';
  }

  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,
    toJSON:         toJSON,
    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 (!window.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 SETATTRIBUTE_IGNORES_NAME = (function(){
    var elForm = document.createElement("form");
    var elInput = document.createElement("input");
    var root = document.documentElement;
    elInput.setAttribute("name", "test");
    elForm.appendChild(elInput);
    root.appendChild(elForm);
    var isBuggy = elForm.elements
      ? (typeof elForm.elements.test == "undefined")
      : null;
    root.removeChild(elForm);
    elForm = elInput = null;
    return isBuggy;
  })();

  var element = global.Element;
  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (SETATTRIBUTE_IGNORES_NAME && 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.cache = { };
Element.idCounter = 1;

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);

      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();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    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) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    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) {
    if (Object.isString(selector))
      selector = new Selector(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] :
      Selector.findElement(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 (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = Element.previousSiblings(element);
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = Element.nextSiblings(element);
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },


  select: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element, args);
  },

  adjacent: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element.parentNode, args).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;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = Element.getStyle(element, 'display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    if (originalPosition != 'fixed') // Switching fixed to absolute causes issues in Safari
      els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  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;
    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);
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var 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);
    var 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;

    var 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);

    element = $(element);
    var delta = [0, 0];
    var parent = null;
    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);
      try { element.offsetParent }
      catch(e) { 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);
        try { element.offsetParent }
        catch(e) { 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.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  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';
    var forProp = 'for';

    var 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');
            el.onclick = Prototype.emptyFunction;
            var value = el.getAttribute('onclick');
            var f;

            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();
      var 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];
    t[2].times(function() { 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);
        var 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;
})();

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

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);
    var 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[0];
    }

    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);
  }
});
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      this.compileMatcher();
    }

  },

  shouldUseXPath: (function() {

    var IS_DESCENDANT_SELECTOR_BUGGY = (function(){
      var isBuggy = false;
      if (document.evaluate && window.XPathResult) {
        var el = document.createElement('div');
        el.innerHTML = '<ul><li></li></ul><div><ul><li></li></ul></div>';

        var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
          "//*[local-name()='li' or local-name()='LI']";

        var result = document.evaluate(xpath, el, null,
          XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

        isBuggy = (result.snapshotLength !== 2);
        el = null;
      }
      return isBuggy;
    })();

    return function() {
      if (!Prototype.BrowserFeatures.XPath) return false;

      var e = this.expression;

      if (Prototype.Browser.WebKit &&
       (e.include("-of-type") || e.include(":empty")))
        return false;

      if ((/(\[[\w-]*?:|:checked)/).test(e))
        return false;

      if (IS_DESCENDANT_SELECTOR_BUGGY) return false;

      return true;
    }

  })(),

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;

    if (!Selector._div) Selector._div = new Element('div');

    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[name]) ? c[name](m) :
            new Template(c[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        name = ps[i].name;
        if (m = e.match(ps[i].re)) {
          this.matcher.push(Object.isFunction(x[name]) ? x[name](m) :
            new Template(x[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          id = id.replace(/([\.:])/g, "\\$1");
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       return this.matcher(root);
    }
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m, len = ps.length, name;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          if (as[name]) {
            this.tokens.push([name, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

if (Prototype.BrowserFeatures.SelectorsAPI &&
 document.compatMode === 'BackCompat') {
  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
    var div = document.createElement('div'),
     span = document.createElement('span');

    div.id = "prototype_test_id";
    span.className = 'Test';
    div.appendChild(span);
    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
    div = span = null;
    return isIgnored;
  })();
}

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v, len = p.length, name;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i = 0; i<len; i++) {
            name = p[i].name
            if (m = e.match(p[i].re)) {
              v = Object.isFunction(x[name]) ? x[name](m) : new Template(x[name]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: [
    { name: 'laterSibling', re: /^\s*~\s*/ },
    { name: 'child',        re: /^\s*>\s*/ },
    { name: 'adjacent',     re: /^\s*\+\s*/ },
    { name: 'descendant',   re: /^\s/ },

    { name: 'tagName',      re: /^\s*(\*|[\w\-]+)(\b|$)?/ },
    { name: 'id',           re: /^#([\w\-\*]+)(\b|$)/ },
    { name: 'className',    re: /^\.([\w\-\*]+)(\b|$)/ },
    { name: 'pseudo',       re: /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/ },
    { name: 'attrPresence', re: /^\[((?:[\w-]+:)?[\w-]+)\]/ },
    { name: 'attr',         re: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/ }
  ],

  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  handlers: {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: (function(){

      var PROPERTIES_ATTRIBUTES_MAP = (function(){
        var el = document.createElement('div'),
            isBuggy = false,
            propName = '_countedByPrototype',
            value = 'x'
        el[propName] = value;
        isBuggy = (el.getAttribute(propName) === value);
        el = null;
        return isBuggy;
      })();

      return PROPERTIES_ATTRIBUTES_MAP ?
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node.removeAttribute('_countedByPrototype');
          return nodes;
        } :
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = void 0;
          return nodes;
        }
    })(),

    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (typeof (n = nodes[i])._countedByPrototype == 'undefined') {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;

      if (root == document) {
        if (!targetNode) return [];
        if (!nodes) return [targetNode];
      } else {
        if (!root.sourceIndex || root.sourceIndex < 1) {
          var nodes = root.getElementsByTagName('*');
          for (var j = 0, node; node = nodes[j]; j++) {
            if (node.id === id) return [node];
          }
        }
      }

      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (node.tagName == '!' || node.firstChild) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled && (!node.type || node.type !== 'hidden'))
          results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
     '-').include('-' + (v || "").toUpperCase() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}

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;
    var elements = [element].concat(element.ancestors());
    return Selector.findElement(elements, expression, 0);
  }

  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;

  if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
    _getDOMEventName = function(eventName) {
      var translations = { mouseenter: "mouseover", mouseleave: "mouseout" };
      return eventName in translations ? 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 (Object.isUndefined(registry)) return element;

    if (eventName && !handler) {
      var responders = registry.get(eventName);

      if (Object.isUndefined(responders)) return element;

      responders.each( function(r) {
        Element.stopObserving(element, eventName, r.handler);
      });
      return element;
    } else if (!eventName) {
      registry.each( function(pair) {
        var eventName = pair.key, responders = pair.value;

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

    var responders = registry.get(eventName);

    if (!responders) return;

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

    var actualEventName = _getDOMEventName(eventName);

    if (eventName.include(':')) {
      if (element.removeEventListener)
        element.removeEventListener("dataavailable", responder, false);
      else {
        element.detachEvent("ondataavailable", responder);
        element.detachEvent("onfilterchange",  responder);
      }
    } else {
      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);
  }


  Object.extend(Event, Event.Methods);

  Object.extend(Event, {
    fire:          fire,
    observe:       observe,
    stopObserving: stopObserving
  });

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving
  });

  Object.extend(document, {
    fire:          fire.methodize(),

    observe:       observe.methodize(),

    stopObserving: stopObserving.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);

/*--------------------------------------------------------------------------*/
/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
if(typeof YAHOO=="undefined"||!YAHOO){var YAHOO={};}YAHOO.namespace=function(){var A=arguments,E=null,C,B,D;for(C=0;C<A.length;C=C+1){D=(""+A[C]).split(".");E=YAHOO;for(B=(D[0]=="YAHOO")?1:0;B<D.length;B=B+1){E[D[B]]=E[D[B]]||{};E=E[D[B]];}}return E;};YAHOO.log=function(D,A,C){var B=YAHOO.widget.Logger;if(B&&B.log){return B.log(D,A,C);}else{return false;}};YAHOO.register=function(A,E,D){var I=YAHOO.env.modules,B,H,G,F,C;if(!I[A]){I[A]={versions:[],builds:[]};}B=I[A];H=D.version;G=D.build;F=YAHOO.env.listeners;B.name=A;B.version=H;B.build=G;B.versions.push(H);B.builds.push(G);B.mainClass=E;for(C=0;C<F.length;C=C+1){F[C](B);}if(E){E.VERSION=H;E.BUILD=G;}else{YAHOO.log("mainClass is undefined for module "+A,"warn");}};YAHOO.env=YAHOO.env||{modules:[],listeners:[]};YAHOO.env.getVersion=function(A){return YAHOO.env.modules[A]||null;};YAHOO.env.ua=function(){var C={ie:0,opera:0,gecko:0,webkit:0,mobile:null,air:0,caja:0},B=navigator.userAgent,A;if((/KHTML/).test(B)){C.webkit=1;}A=B.match(/AppleWebKit\/([^\s]*)/);if(A&&A[1]){C.webkit=parseFloat(A[1]);if(/ Mobile\//.test(B)){C.mobile="Apple";}else{A=B.match(/NokiaN[^\/]*/);if(A){C.mobile=A[0];}}A=B.match(/AdobeAIR\/([^\s]*)/);if(A){C.air=A[0];}}if(!C.webkit){A=B.match(/Opera[\s\/]([^\s]*)/);if(A&&A[1]){C.opera=parseFloat(A[1]);A=B.match(/Opera Mini[^;]*/);if(A){C.mobile=A[0];}}else{A=B.match(/MSIE\s([^;]*)/);if(A&&A[1]){C.ie=parseFloat(A[1]);}else{A=B.match(/Gecko\/([^\s]*)/);if(A){C.gecko=1;A=B.match(/rv:([^\s\)]*)/);if(A&&A[1]){C.gecko=parseFloat(A[1]);}}}}}A=B.match(/Caja\/([^\s]*)/);if(A&&A[1]){C.caja=parseFloat(A[1]);}return C;}();(function(){YAHOO.namespace("util","widget","example");if("undefined"!==typeof YAHOO_config){var B=YAHOO_config.listener,A=YAHOO.env.listeners,D=true,C;if(B){for(C=0;C<A.length;C=C+1){if(A[C]==B){D=false;break;}}if(D){A.push(B);}}}})();YAHOO.lang=YAHOO.lang||{};(function(){var B=YAHOO.lang,F="[object Array]",C="[object Function]",A=Object.prototype,E=["toString","valueOf"],D={isArray:function(G){return A.toString.apply(G)===F;},isBoolean:function(G){return typeof G==="boolean";},isFunction:function(G){return A.toString.apply(G)===C;},isNull:function(G){return G===null;},isNumber:function(G){return typeof G==="number"&&isFinite(G);},isObject:function(G){return(G&&(typeof G==="object"||B.isFunction(G)))||false;},isString:function(G){return typeof G==="string";},isUndefined:function(G){return typeof G==="undefined";},_IEEnumFix:(YAHOO.env.ua.ie)?function(I,H){var G,K,J;for(G=0;G<E.length;G=G+1){K=E[G];J=H[K];if(B.isFunction(J)&&J!=A[K]){I[K]=J;}}}:function(){},extend:function(J,K,I){if(!K||!J){throw new Error("extend failed, please check that "+"all dependencies are included.");}var 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G:Y=X[A];break;case V:Y=X.offsetHeight-X.clientHeight-X[A];break;case D:Y=X[F];break;case P:Y=X.offsetWidth-X.clientWidth-X[F];break;}return Y+I;},getPixel:function(Y,X){var a=null,b=Y[T][K],Z=Y[T][X];Y[H][K]=Z;a=Y[H].pixelRight;Y[H][K]=b;return a+I;},getMargin:function(Y,X){var Z;if(Y[T][X]==L){Z=0+I;}else{Z=B.Dom.IE.ComputedStyle.getPixel(Y,X);}return Z;},getVisibility:function(Y,X){var Z;while((Z=Y[T])&&Z[X]=="inherit"){Y=Y[J];}return(Z)?Z[X]:S;},getColor:function(Y,X){return B.Dom.Color.toRGB(Y[T][X])||Q;},getBorderColor:function(Y,X){var Z=Y[T],a=Z[X]||Z.color;return B.Dom.Color.toRGB(B.Dom.Color.toHex(a));}},C={};C.top=C.right=C.bottom=C.left=C[E]=C[N]=M.getOffset;C.color=M.getColor;C[G]=C[P]=C[V]=C[D]=M.getBorderWidth;C.marginTop=C.marginRight=C.marginBottom=C.marginLeft=M.getMargin;C.visibility=M.getVisibility;C.borderColor=C.borderTopColor=C.borderRightColor=C.borderBottomColor=C.borderLeftColor=M.getBorderColor;B.Dom.IE_COMPUTED=C;B.Dom.IE_ComputedStyle=M;})();(function(){var C="toString",A=parseInt,B=RegExp,D=YAHOO.util;D.Dom.Color={KEYWORDS:{black:"000",silver:"c0c0c0",gray:"808080",white:"fff",maroon:"800000",red:"f00",purple:"800080",fuchsia:"f0f",green:"008000",lime:"0f0",olive:"808000",yellow:"ff0",navy:"000080",blue:"00f",teal:"008080",aqua:"0ff"},re_RGB:/^rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)$/i,re_hex:/^#?([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i,re_hex3:/([0-9A-F])/gi,toRGB:function(E){if(!D.Dom.Color.re_RGB.test(E)){E=D.Dom.Color.toHex(E);}if(D.Dom.Color.re_hex.exec(E)){E="rgb("+[A(B.$1,16),A(B.$2,16),A(B.$3,16)].join(", ")+")";}return E;},toHex:function(H){H=D.Dom.Color.KEYWORDS[H]||H;if(D.Dom.Color.re_RGB.exec(H)){var G=(B.$1.length===1)?"0"+B.$1:Number(B.$1),F=(B.$2.length===1)?"0"+B.$2:Number(B.$2),E=(B.$3.length===1)?"0"+B.$3:Number(B.$3);H=[G[C](16),F[C](16),E[C](16)].join("");}if(H.length<6){H=H.replace(D.Dom.Color.re_hex3,"$1$1");}if(H!=="transparent"&&H.indexOf("#")<0){H="#"+H;}return H.toLowerCase();}};}());YAHOO.register("dom",YAHOO.util.Dom,{version:"2.7.0",build:"1799"});YAHOO.util.CustomEvent=function(D,C,B,A){this.type=D;this.scope=C||window;this.silent=B;this.signature=A||YAHOO.util.CustomEvent.LIST;this.subscribers=[];if(!this.silent){}var E="_YUICEOnSubscribe";if(D!==E){this.subscribeEvent=new YAHOO.util.CustomEvent(E,this,true);}this.lastError=null;};YAHOO.util.CustomEvent.LIST=0;YAHOO.util.CustomEvent.FLAT=1;YAHOO.util.CustomEvent.prototype={subscribe:function(A,B,C){if(!A){throw new Error("Invalid callback for subscriber to '"+this.type+"'");}if(this.subscribeEvent){this.subscribeEvent.fire(A,B,C);}this.subscribers.push(new YAHOO.util.Subscriber(A,B,C));},unsubscribe:function(D,F){if(!D){return this.unsubscribeAll();}var E=false;for(var B=0,A=this.subscribers.length;B<A;++B){var C=this.subscribers[B];if(C&&C.contains(D,F)){this._delete(B);E=true;}}return E;},fire:function(){this.lastError=null;var K=[],E=this.subscribers.length;if(!E&&this.silent){return true;}var I=[].slice.call(arguments,0),G=true,D,J=false;if(!this.silent){}var C=this.subscribers.slice(),A=YAHOO.util.Event.throwErrors;for(D=0;D<E;++D){var M=C[D];if(!M){J=true;}else{if(!this.silent){}var L=M.getScope(this.scope);if(this.signature==YAHOO.util.CustomEvent.FLAT){var B=null;if(I.length>0){B=I[0];}try{G=M.fn.call(L,B,M.obj);}catch(F){this.lastError=F;if(A){throw F;}}}else{try{G=M.fn.call(L,this.type,I,M.obj);}catch(H){this.lastError=H;if(A){throw H;}}}if(false===G){if(!this.silent){}break;}}}return(G!==false);},unsubscribeAll:function(){var A=this.subscribers.length,B;for(B=A-1;B>-1;B--){this._delete(B);}this.subscribers=[];return A;},_delete:function(A){var B=this.subscribers[A];if(B){delete B.fn;delete B.obj;}this.subscribers.splice(A,1);},toString:function(){return"CustomEvent: "+"'"+this.type+"', "+"context: "+this.scope;}};YAHOO.util.Subscriber=function(A,B,C){this.fn=A;this.obj=YAHOO.lang.isUndefined(B)?null:B;this.overrideContext=C;};YAHOO.util.Subscriber.prototype.getScope=function(A){if(this.overrideContext){if(this.overrideContext===true){return this.obj;}else{return this.overrideContext;}}return A;};YAHOO.util.Subscriber.prototype.contains=function(A,B){if(B){return(this.fn==A&&this.obj==B);}else{return(this.fn==A);}};YAHOO.util.Subscriber.prototype.toString=function(){return"Subscriber { obj: "+this.obj+", overrideContext: "+(this.overrideContext||"no")+" }";};if(!YAHOO.util.Event){YAHOO.util.Event=function(){var H=false;var I=[];var J=[];var G=[];var E=[];var C=0;var F=[];var B=[];var A=0;var D={63232:38,63233:40,63234:37,63235:39,63276:33,63277:34,25:9};var K=YAHOO.env.ua.ie?"focusin":"focus";var L=YAHOO.env.ua.ie?"focusout":"blur";return{POLL_RETRYS:2000,POLL_INTERVAL:20,EL:0,TYPE:1,FN:2,WFN:3,UNLOAD_OBJ:3,ADJ_SCOPE:4,OBJ:5,OVERRIDE:6,lastError:null,isSafari:YAHOO.env.ua.webkit,webkit:YAHOO.env.ua.webkit,isIE:YAHOO.env.ua.ie,_interval:null,_dri:null,DOMReady:false,throwErrors:false,startInterval:function(){if(!this._interval){var M=this;var N=function(){M._tryPreloadAttach();};this._interval=setInterval(N,this.POLL_INTERVAL);}},onAvailable:function(S,O,Q,R,P){var M=(YAHOO.lang.isString(S))?[S]:S;for(var N=0;N<M.length;N=N+1){F.push({id:M[N],fn:O,obj:Q,overrideContext:R,checkReady:P});}C=this.POLL_RETRYS;this.startInterval();},onContentReady:function(P,M,N,O){this.onAvailable(P,M,N,O,true);},onDOMReady:function(M,N,O){if(this.DOMReady){setTimeout(function(){var P=window;if(O){if(O===true){P=N;}else{P=O;}}M.call(P,"DOMReady",[],N);},0);}else{this.DOMReadyEvent.subscribe(M,N,O);}},_addListener:function(O,M,Y,S,W,b){if(!Y||!Y.call){return false;}if(this._isValidCollection(O)){var Z=true;for(var T=0,V=O.length;T<V;++T){Z=this.on(O[T],M,Y,S,W)&&Z;}return Z;}else{if(YAHOO.lang.isString(O)){var R=this.getEl(O);if(R){O=R;}else{this.onAvailable(O,function(){YAHOO.util.Event.on(O,M,Y,S,W);});return true;}}}if(!O){return false;}if("unload"==M&&S!==this){J[J.length]=[O,M,Y,S,W];return true;}var N=O;if(W){if(W===true){N=S;}else{N=W;}}var P=function(c){return Y.call(N,YAHOO.util.Event.getEvent(c,O),S);};var a=[O,M,Y,P,N,S,W];var U=I.length;I[U]=a;if(this.useLegacyEvent(O,M)){var Q=this.getLegacyIndex(O,M);if(Q==-1||O!=G[Q][0]){Q=G.length;B[O.id+M]=Q;G[Q]=[O,M,O["on"+M]];E[Q]=[];O["on"+M]=function(c){YAHOO.util.Event.fireLegacyEvent(YAHOO.util.Event.getEvent(c),Q);};}E[Q].push(a);}else{try{this._simpleAdd(O,M,P,b);}catch(X){this.lastError=X;this.removeListener(O,M,Y);return false;}}return true;},addListener:function(N,Q,M,O,P){return this._addListener(N,Q,M,O,P,false);},addFocusListener:function(N,M,O,P){return this._addListener(N,K,M,O,P,true);},removeFocusListener:function(N,M){return this.removeListener(N,K,M);},addBlurListener:function(N,M,O,P){return this._addListener(N,L,M,O,P,true);},removeBlurListener:function(N,M){return this.removeListener(N,L,M);},fireLegacyEvent:function(R,P){var T=true,M,V,U,N,S;V=E[P].slice();for(var O=0,Q=V.length;O<Q;++O){U=V[O];if(U&&U[this.WFN]){N=U[this.ADJ_SCOPE];S=U[this.WFN].call(N,R);T=(T&&S);}}M=G[P];if(M&&M[2]){M[2](R);}return T;},getLegacyIndex:function(N,O){var M=this.generateId(N)+O;if(typeof B[M]=="undefined"){return -1;}else{return B[M];}},useLegacyEvent:function(M,N){return(this.webkit&&this.webkit<419&&("click"==N||"dblclick"==N));},removeListener:function(N,M,V){var Q,T,X;if(typeof N=="string"){N=this.getEl(N);}else{if(this._isValidCollection(N)){var W=true;for(Q=N.length-1;Q>-1;Q--){W=(this.removeListener(N[Q],M,V)&&W);}return W;}}if(!V||!V.call){return this.purgeElement(N,false,M);}if("unload"==M){for(Q=J.length-1;Q>-1;Q--){X=J[Q];if(X&&X[0]==N&&X[1]==M&&X[2]==V){J.splice(Q,1);return true;}}return false;}var R=null;var S=arguments[3];if("undefined"===typeof S){S=this._getCacheIndex(N,M,V);}if(S>=0){R=I[S];}if(!N||!R){return false;}if(this.useLegacyEvent(N,M)){var P=this.getLegacyIndex(N,M);var O=E[P];if(O){for(Q=0,T=O.length;Q<T;++Q){X=O[Q];if(X&&X[this.EL]==N&&X[this.TYPE]==M&&X[this.FN]==V){O.splice(Q,1);break;}}}}else{try{this._simpleRemove(N,M,R[this.WFN],false);}catch(U){this.lastError=U;return false;}}delete I[S][this.WFN];delete I[S][this.FN];
I.splice(S,1);return true;},getTarget:function(O,N){var M=O.target||O.srcElement;return this.resolveTextNode(M);},resolveTextNode:function(N){try{if(N&&3==N.nodeType){return N.parentNode;}}catch(M){}return N;},getPageX:function(N){var M=N.pageX;if(!M&&0!==M){M=N.clientX||0;if(this.isIE){M+=this._getScrollLeft();}}return M;},getPageY:function(M){var N=M.pageY;if(!N&&0!==N){N=M.clientY||0;if(this.isIE){N+=this._getScrollTop();}}return N;},getXY:function(M){return[this.getPageX(M),this.getPageY(M)];},getRelatedTarget:function(N){var M=N.relatedTarget;if(!M){if(N.type=="mouseout"){M=N.toElement;}else{if(N.type=="mouseover"){M=N.fromElement;}}}return this.resolveTextNode(M);},getTime:function(O){if(!O.time){var N=new Date().getTime();try{O.time=N;}catch(M){this.lastError=M;return N;}}return O.time;},stopEvent:function(M){this.stopPropagation(M);this.preventDefault(M);},stopPropagation:function(M){if(M.stopPropagation){M.stopPropagation();}else{M.cancelBubble=true;}},preventDefault:function(M){if(M.preventDefault){M.preventDefault();}else{M.returnValue=false;}},getEvent:function(O,M){var N=O||window.event;if(!N){var P=this.getEvent.caller;while(P){N=P.arguments[0];if(N&&Event==N.constructor){break;}P=P.caller;}}return N;},getCharCode:function(N){var M=N.keyCode||N.charCode||0;if(YAHOO.env.ua.webkit&&(M in D)){M=D[M];}return M;},_getCacheIndex:function(Q,R,P){for(var O=0,N=I.length;O<N;O=O+1){var M=I[O];if(M&&M[this.FN]==P&&M[this.EL]==Q&&M[this.TYPE]==R){return O;}}return -1;},generateId:function(M){var N=M.id;if(!N){N="yuievtautoid-"+A;++A;M.id=N;}return N;},_isValidCollection:function(N){try{return(N&&typeof N!=="string"&&N.length&&!N.tagName&&!N.alert&&typeof N[0]!=="undefined");}catch(M){return false;}},elCache:{},getEl:function(M){return(typeof M==="string")?document.getElementById(M):M;},clearCache:function(){},DOMReadyEvent:new YAHOO.util.CustomEvent("DOMReady",this),_load:function(N){if(!H){H=true;var M=YAHOO.util.Event;M._ready();M._tryPreloadAttach();}},_ready:function(N){var M=YAHOO.util.Event;if(!M.DOMReady){M.DOMReady=true;M.DOMReadyEvent.fire();M._simpleRemove(document,"DOMContentLoaded",M._ready);}},_tryPreloadAttach:function(){if(F.length===0){C=0;if(this._interval){clearInterval(this._interval);this._interval=null;}return;}if(this.locked){return;}if(this.isIE){if(!this.DOMReady){this.startInterval();return;}}this.locked=true;var S=!H;if(!S){S=(C>0&&F.length>0);}var R=[];var T=function(V,W){var U=V;if(W.overrideContext){if(W.overrideContext===true){U=W.obj;}else{U=W.overrideContext;}}W.fn.call(U,W.obj);};var N,M,Q,P,O=[];for(N=0,M=F.length;N<M;N=N+1){Q=F[N];if(Q){P=this.getEl(Q.id);if(P){if(Q.checkReady){if(H||P.nextSibling||!S){O.push(Q);F[N]=null;}}else{T(P,Q);F[N]=null;}}else{R.push(Q);}}}for(N=0,M=O.length;N<M;N=N+1){Q=O[N];T(this.getEl(Q.id),Q);}C--;if(S){for(N=F.length-1;N>-1;N--){Q=F[N];if(!Q||!Q.id){F.splice(N,1);}}this.startInterval();}else{if(this._interval){clearInterval(this._interval);this._interval=null;}}this.locked=false;},purgeElement:function(Q,R,T){var O=(YAHOO.lang.isString(Q))?this.getEl(Q):Q;var S=this.getListeners(O,T),P,M;if(S){for(P=S.length-1;P>-1;P--){var N=S[P];this.removeListener(O,N.type,N.fn);}}if(R&&O&&O.childNodes){for(P=0,M=O.childNodes.length;P<M;++P){this.purgeElement(O.childNodes[P],R,T);}}},getListeners:function(O,M){var R=[],N;if(!M){N=[I,J];}else{if(M==="unload"){N=[J];}else{N=[I];}}var T=(YAHOO.lang.isString(O))?this.getEl(O):O;for(var Q=0;Q<N.length;Q=Q+1){var V=N[Q];if(V){for(var S=0,U=V.length;S<U;++S){var P=V[S];if(P&&P[this.EL]===T&&(!M||M===P[this.TYPE])){R.push({type:P[this.TYPE],fn:P[this.FN],obj:P[this.OBJ],adjust:P[this.OVERRIDE],scope:P[this.ADJ_SCOPE],index:S});}}}}return(R.length)?R:null;},_unload:function(T){var N=YAHOO.util.Event,Q,P,O,S,R,U=J.slice(),M;for(Q=0,S=J.length;Q<S;++Q){O=U[Q];if(O){M=window;if(O[N.ADJ_SCOPE]){if(O[N.ADJ_SCOPE]===true){M=O[N.UNLOAD_OBJ];}else{M=O[N.ADJ_SCOPE];}}O[N.FN].call(M,N.getEvent(T,O[N.EL]),O[N.UNLOAD_OBJ]);U[Q]=null;}}O=null;M=null;J=null;if(I){for(P=I.length-1;P>-1;P--){O=I[P];if(O){N.removeListener(O[N.EL],O[N.TYPE],O[N.FN],P);}}O=null;}G=null;N._simpleRemove(window,"unload",N._unload);},_getScrollLeft:function(){return this._getScroll()[1];},_getScrollTop:function(){return this._getScroll()[0];},_getScroll:function(){var M=document.documentElement,N=document.body;if(M&&(M.scrollTop||M.scrollLeft)){return[M.scrollTop,M.scrollLeft];}else{if(N){return[N.scrollTop,N.scrollLeft];}else{return[0,0];}}},regCE:function(){},_simpleAdd:function(){if(window.addEventListener){return function(O,P,N,M){O.addEventListener(P,N,(M));};}else{if(window.attachEvent){return function(O,P,N,M){O.attachEvent("on"+P,N);};}else{return function(){};}}}(),_simpleRemove:function(){if(window.removeEventListener){return function(O,P,N,M){O.removeEventListener(P,N,(M));};}else{if(window.detachEvent){return function(N,O,M){N.detachEvent("on"+O,M);};}else{return function(){};}}}()};}();(function(){var EU=YAHOO.util.Event;EU.on=EU.addListener;EU.onFocus=EU.addFocusListener;EU.onBlur=EU.addBlurListener;
/* DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller */
if(EU.isIE){YAHOO.util.Event.onDOMReady(YAHOO.util.Event._tryPreloadAttach,YAHOO.util.Event,true);var n=document.createElement("p");EU._dri=setInterval(function(){try{n.doScroll("left");clearInterval(EU._dri);EU._dri=null;EU._ready();n=null;}catch(ex){}},EU.POLL_INTERVAL);}else{if(EU.webkit&&EU.webkit<525){EU._dri=setInterval(function(){var rs=document.readyState;if("loaded"==rs||"complete"==rs){clearInterval(EU._dri);EU._dri=null;EU._ready();}},EU.POLL_INTERVAL);}else{EU._simpleAdd(document,"DOMContentLoaded",EU._ready);}}EU._simpleAdd(window,"load",EU._load);EU._simpleAdd(window,"unload",EU._unload);EU._tryPreloadAttach();})();}YAHOO.util.EventProvider=function(){};YAHOO.util.EventProvider.prototype={__yui_events:null,__yui_subscribers:null,subscribe:function(A,C,F,E){this.__yui_events=this.__yui_events||{};var D=this.__yui_events[A];if(D){D.subscribe(C,F,E);
}else{this.__yui_subscribers=this.__yui_subscribers||{};var B=this.__yui_subscribers;if(!B[A]){B[A]=[];}B[A].push({fn:C,obj:F,overrideContext:E});}},unsubscribe:function(C,E,G){this.__yui_events=this.__yui_events||{};var A=this.__yui_events;if(C){var F=A[C];if(F){return F.unsubscribe(E,G);}}else{var B=true;for(var D in A){if(YAHOO.lang.hasOwnProperty(A,D)){B=B&&A[D].unsubscribe(E,G);}}return B;}return false;},unsubscribeAll:function(A){return this.unsubscribe(A);},createEvent:function(G,D){this.__yui_events=this.__yui_events||{};var A=D||{};var I=this.__yui_events;if(I[G]){}else{var H=A.scope||this;var E=(A.silent);var B=new YAHOO.util.CustomEvent(G,H,E,YAHOO.util.CustomEvent.FLAT);I[G]=B;if(A.onSubscribeCallback){B.subscribeEvent.subscribe(A.onSubscribeCallback);}this.__yui_subscribers=this.__yui_subscribers||{};var F=this.__yui_subscribers[G];if(F){for(var C=0;C<F.length;++C){B.subscribe(F[C].fn,F[C].obj,F[C].overrideContext);}}}return I[G];},fireEvent:function(E,D,A,C){this.__yui_events=this.__yui_events||{};var G=this.__yui_events[E];if(!G){return null;}var B=[];for(var F=1;F<arguments.length;++F){B.push(arguments[F]);}return G.fire.apply(G,B);},hasEvent:function(A){if(this.__yui_events){if(this.__yui_events[A]){return true;}}return false;}};(function(){var A=YAHOO.util.Event,C=YAHOO.lang;YAHOO.util.KeyListener=function(D,I,E,F){if(!D){}else{if(!I){}else{if(!E){}}}if(!F){F=YAHOO.util.KeyListener.KEYDOWN;}var G=new YAHOO.util.CustomEvent("keyPressed");this.enabledEvent=new YAHOO.util.CustomEvent("enabled");this.disabledEvent=new YAHOO.util.CustomEvent("disabled");if(C.isString(D)){D=document.getElementById(D);}if(C.isFunction(E)){G.subscribe(E);}else{G.subscribe(E.fn,E.scope,E.correctScope);}function H(O,N){if(!I.shift){I.shift=false;}if(!I.alt){I.alt=false;}if(!I.ctrl){I.ctrl=false;}if(O.shiftKey==I.shift&&O.altKey==I.alt&&O.ctrlKey==I.ctrl){var J,M=I.keys,L;if(YAHOO.lang.isArray(M)){for(var K=0;K<M.length;K++){J=M[K];L=A.getCharCode(O);if(J==L){G.fire(L,O);break;}}}else{L=A.getCharCode(O);if(M==L){G.fire(L,O);}}}}this.enable=function(){if(!this.enabled){A.on(D,F,H);this.enabledEvent.fire(I);}this.enabled=true;};this.disable=function(){if(this.enabled){A.removeListener(D,F,H);this.disabledEvent.fire(I);}this.enabled=false;};this.toString=function(){return"KeyListener ["+I.keys+"] "+D.tagName+(D.id?"["+D.id+"]":"");};};var B=YAHOO.util.KeyListener;B.KEYDOWN="keydown";B.KEYUP="keyup";B.KEY={ALT:18,BACK_SPACE:8,CAPS_LOCK:20,CONTROL:17,DELETE:46,DOWN:40,END:35,ENTER:13,ESCAPE:27,HOME:36,LEFT:37,META:224,NUM_LOCK:144,PAGE_DOWN:34,PAGE_UP:33,PAUSE:19,PRINTSCREEN:44,RIGHT:39,SCROLL_LOCK:145,SHIFT:16,SPACE:32,TAB:9,UP:38};})();YAHOO.register("event",YAHOO.util.Event,{version:"2.7.0",build:"1799"});YAHOO.register("yahoo-dom-event", YAHOO, {version: "2.7.0", build: "1799"});
/* START UTILITY */

GlobalUtility = function(){
	if(typeof GlobalUtility._initialized == 'undefined'){
		/**
		 * Dummy method used with YUI
		 */
		GlobalUtility.prototype.findAll = function(obj){
			return true;
		};
		
		/**
		 * Finds submit input
		 * Use with YUI
		 */
		GlobalUtility.prototype.findSubmit = function(obj){
			if(obj.type == 'submit'){
				return true;
			}
			return false;
		};
		
		/**
		 * prevents default action of an element
		 * e - event object to cancel
		 */
		GlobalUtility.prototype.preventDefault = function(e){
			if(e.preventDefault){
				e.preventDefault();
			}else if(window.event){
				window.event.returnValue = false;
			}
		};
		
		GlobalUtility.prototype.refreshPage = function(){
			//window.location.href = window.location.pathname;
			location.reload(true);
		};
		
		GlobalUtility._initialized = true;
	}
}

var TRENDS = new GlobalUtility();






/**
 * Panel overlay
 */
PanelOverlay = function(formPane) {
	this.formPane = formPane;
	
	if(typeof PanelOverlay._initialized == 'undefined'){
		
		PanelOverlay.prototype.toggleVisibility = function(){
			var opposite = (this.isVisible() ? 'hidden' : 'visible');
			YAHOO.util.Dom.setStyle(this.formPane, 'visibility', opposite);
		}
		
		PanelOverlay.prototype.show = function(){
			YAHOO.util.Dom.setStyle(this.formPane, 'visibility', 'visible');
		}
		
		PanelOverlay.prototype.hide = function(){
			YAHOO.util.Dom.setStyle(this.formPane, 'visibility', 'hidden');
		}
		
		PanelOverlay.prototype.isVisible = function(){
			return ('visible' == YAHOO.util.Dom.getStyle(this.formPane, 'visibility'));
		}
		
		PanelOverlay._initialized = true;
	}

}


RelatedPopupOverlay = function(pane, trigger, container){
	PanelOverlay.call(this, pane);
	
	if(typeof RelatedPopupOverlay._initialized == 'undefined'){
		
		RelatedPopupOverlay.prototype.resolveClick = function(e, obj){
			TRENDS.preventDefault(e);
			obj.toggleVisibility();
		};
		
		RelatedPopupOverlay.prototype.resolveMouseout = function(e, obj){
			TRENDS.preventDefault(e);
			if(obj.isVisible()){
				obj.hoverTimer = setTimeout(function() {obj.hide();}, 500);
			}
		};
		
		RelatedPopupOverlay.prototype.resolveMouseover = function(e, obj){
			TRENDS.preventDefault(e);
			if(obj && obj.hoverTimer){
				clearTimeout(obj.hoverTimer);
			}
		};

		RelatedPopupOverlay._initialized = true;
	}
	
	YAHOO.util.Event.addListener(trigger, 'click', this.resolveClick, this);
	YAHOO.util.Event.addListener(container, 'mouseout', this.resolveMouseout, this);
	YAHOO.util.Event.addListener(container, 'mouseover', this.resolveMouseover, this);
	
	var header = YAHOO.util.Dom.getElementsByClassName('rphead', 'div', pane)[0];
	this.closebutton = document.createElement('DIV');
	this.closebutton.setAttribute('class', 'closebutton');
	header.appendChild(this.closebutton);
	YAHOO.util.Event.addListener(this.closebutton, 'click', this.resolveClick, this);
}
RelatedPopupOverlay.prototype = new PanelOverlay();

function initializeRelated(){
	var relatedPane = YAHOO.util.Dom.getElementsByClassName('relatedproducts', 'div', document);
	for(var i = 0; i < relatedPane.length; i++){
		var trigger = YAHOO.util.Dom.getElementsByClassName('rplink', 'a', relatedPane[i])[0];
		var pane = YAHOO.util.Dom.getElementsByClassName('rpqueries', 'div', relatedPane[i])[0];
		new RelatedPopupOverlay(pane, trigger, relatedPane[i]);
	}
}

YAHOO.util.Event.onDOMReady(initializeRelated);

var ListItem = Class.create({
	initialize: function(listing){
		this.listing = listing;
		this.readmore = this.listing.select('a.fdlink')[0];
		this.description = this.listing.select('div.sdesc')[0];
		this.isExpanded = false;
		YAHOO.util.Event.addListener(this.readmore,'click',this.resolveReadMoreClick, this);
	},
	resolveReadMoreClick: function (e, obj){
		TRENDS.preventDefault(e);
		if(obj.isExpanded){
			obj.collapse();
		}else{
			obj.expand();
		}
	},
	expand: function(){
		this.description.className += ' descexpand';
		this.readmore.innerHTML = 'minimize';
		this.isExpanded = true;
	},
	collapse: function(){
		this.description.className = this.description.className.replace(' descexpand', '');
		this.readmore.innerHTML = 'read more';
		this.isExpanded = false;
	}
});

function initializeListView(){
	var listings = $$('li.productErgebnis');
	for(var i = 0; i < listings.length; i++){
		new ListItem(listings[i]);
	}
}

function initializeProductView(){
	var listings = $$('div.mlproduct');
	for(var i = 0; i < listings.length; i++){
		new ListItem(listings[i]);
	}
}
function initializeCategory(){
	var listings = $$('div.categoryinfo');
	for(var i = 0; i < listings.length; i++){
		new ListItem(listings[i]);
	}
}

function initializeProdukte(){
	var listings = $$('div.produkt-info');
	for(var i = 0; i < listings.length; i++){
		new ListItem(listings[i]);
	}
}
YAHOO.util.Event.onDOMReady(initializeListView);
YAHOO.util.Event.onDOMReady(initializeProdukte);
YAHOO.util.Event.onDOMReady(initializeProductView);
YAHOO.util.Event.onDOMReady(initializeCategory);

/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.8.0r4
*/
YAHOO.util.Connect={_msxml_progid:["Microsoft.XMLHTTP","MSXML2.XMLHTTP.3.0","MSXML2.XMLHTTP"],_http_headers:{},_has_http_headers:false,_use_default_post_header:true,_default_post_header:"application/x-www-form-urlencoded; charset=UTF-8",_default_form_header:"application/x-www-form-urlencoded",_use_default_xhr_header:true,_default_xhr_header:"XMLHttpRequest",_has_default_headers:true,_default_headers:{},_poll:{},_timeOut:{},_polling_interval:50,_transaction_id:0,startEvent:new YAHOO.util.CustomEvent("start"),completeEvent:new YAHOO.util.CustomEvent("complete"),successEvent:new YAHOO.util.CustomEvent("success"),failureEvent:new YAHOO.util.CustomEvent("failure"),abortEvent:new YAHOO.util.CustomEvent("abort"),_customEvents:{onStart:["startEvent","start"],onComplete:["completeEvent","complete"],onSuccess:["successEvent","success"],onFailure:["failureEvent","failure"],onUpload:["uploadEvent","upload"],onAbort:["abortEvent","abort"]},setProgId:function(A){this._msxml_progid.unshift(A);},setDefaultPostHeader:function(A){if(typeof A=="string"){this._default_post_header=A;}else{if(typeof A=="boolean"){this._use_default_post_header=A;}}},setDefaultXhrHeader:function(A){if(typeof A=="string"){this._default_xhr_header=A;}else{this._use_default_xhr_header=A;}},setPollingInterval:function(A){if(typeof A=="number"&&isFinite(A)){this._polling_interval=A;}},createXhrObject:function(F){var D,A,B;try{A=new XMLHttpRequest();D={conn:A,tId:F,xhr:true};}catch(C){for(B=0;B<this._msxml_progid.length;++B){try{A=new ActiveXObject(this._msxml_progid[B]);D={conn:A,tId:F,xhr:true};break;}catch(E){}}}finally{return D;}},getConnectionObject:function(A){var C,D=this._transaction_id;try{if(!A){C=this.createXhrObject(D);}else{C={tId:D};if(A==="xdr"){C.conn=this._transport;C.xdr=true;}else{if(A==="upload"){C.upload=true;}}}if(C){this._transaction_id++;}}catch(B){}return C;},asyncRequest:function(G,D,F,A){var E,C,B=(F&&F.argument)?F.argument:null;if(this._isFileUpload){C="upload";}else{if(F.xdr){C="xdr";}}E=this.getConnectionObject(C);if(!E){return null;}else{if(F&&F.customevents){this.initCustomEvents(E,F);}if(this._isFormSubmit){if(this._isFileUpload){this.uploadFile(E,F,D,A);return E;}if(G.toUpperCase()=="GET"){if(this._sFormData.length!==0){D+=((D.indexOf("?")==-1)?"?":"&")+this._sFormData;}}else{if(G.toUpperCase()=="POST"){A=A?this._sFormData+"&"+A:this._sFormData;}}}if(G.toUpperCase()=="GET"&&(F&&F.cache===false)){D+=((D.indexOf("?")==-1)?"?":"&")+"rnd="+new Date().valueOf().toString();}if(this._use_default_xhr_header){if(!this._default_headers["X-Requested-With"]){this.initHeader("X-Requested-With",this._default_xhr_header,true);}}if((G.toUpperCase()==="POST"&&this._use_default_post_header)&&this._isFormSubmit===false){this.initHeader("Content-Type",this._default_post_header);}if(E.xdr){this.xdr(E,G,D,F,A);return E;}E.conn.open(G,D,true);if(this._has_default_headers||this._has_http_headers){this.setHeader(E);}this.handleReadyState(E,F);E.conn.send(A||"");if(this._isFormSubmit===true){this.resetFormState();}this.startEvent.fire(E,B);if(E.startEvent){E.startEvent.fire(E,B);}return E;}},initCustomEvents:function(A,C){var B;for(B in C.customevents){if(this._customEvents[B][0]){A[this._customEvents[B][0]]=new YAHOO.util.CustomEvent(this._customEvents[B][1],(C.scope)?C.scope:null);A[this._customEvents[B][0]].subscribe(C.customevents[B]);}}},handleReadyState:function(C,D){var B=this,A=(D&&D.argument)?D.argument:null;if(D&&D.timeout){this._timeOut[C.tId]=window.setTimeout(function(){B.abort(C,D,true);},D.timeout);}this._poll[C.tId]=window.setInterval(function(){if(C.conn&&C.conn.readyState===4){window.clearInterval(B._poll[C.tId]);delete B._poll[C.tId];if(D&&D.timeout){window.clearTimeout(B._timeOut[C.tId]);delete B._timeOut[C.tId];}B.completeEvent.fire(C,A);if(C.completeEvent){C.completeEvent.fire(C,A);}B.handleTransactionResponse(C,D);}},this._polling_interval);},handleTransactionResponse:function(B,I,D){var E,A,G=(I&&I.argument)?I.argument:null,C=(B.r&&B.r.statusText==="xdr:success")?true:false,H=(B.r&&B.r.statusText==="xdr:failure")?true:false,J=D;try{if((B.conn.status!==undefined&&B.conn.status!==0)||C){E=B.conn.status;}else{if(H&&!J){E=0;}else{E=13030;}}}catch(F){E=13030;}if((E>=200&&E<300)||E===1223||C){A=B.xdr?B.r:this.createResponseObject(B,G);if(I&&I.success){if(!I.scope){I.success(A);}else{I.success.apply(I.scope,[A]);}}this.successEvent.fire(A);if(B.successEvent){B.successEvent.fire(A);}}else{switch(E){case 12002:case 12029:case 12030:case 12031:case 12152:case 13030:A=this.createExceptionObject(B.tId,G,(D?D:false));if(I&&I.failure){if(!I.scope){I.failure(A);}else{I.failure.apply(I.scope,[A]);}}break;default:A=(B.xdr)?B.response:this.createResponseObject(B,G);if(I&&I.failure){if(!I.scope){I.failure(A);}else{I.failure.apply(I.scope,[A]);}}}this.failureEvent.fire(A);if(B.failureEvent){B.failureEvent.fire(A);}}this.releaseObject(B);A=null;},createResponseObject:function(A,G){var D={},I={},E,C,F,B;try{C=A.conn.getAllResponseHeaders();F=C.split("\n");for(E=0;E<F.length;E++){B=F[E].indexOf(":");if(B!=-1){I[F[E].substring(0,B)]=YAHOO.lang.trim(F[E].substring(B+2));}}}catch(H){}D.tId=A.tId;D.status=(A.conn.status==1223)?204:A.conn.status;D.statusText=(A.conn.status==1223)?"No Content":A.conn.statusText;D.getResponseHeader=I;D.getAllResponseHeaders=C;D.responseText=A.conn.responseText;D.responseXML=A.conn.responseXML;if(G){D.argument=G;}return D;},createExceptionObject:function(H,D,A){var F=0,G="communication failure",C=-1,B="transaction aborted",E={};E.tId=H;if(A){E.status=C;E.statusText=B;}else{E.status=F;E.statusText=G;}if(D){E.argument=D;}return E;},initHeader:function(A,D,C){var B=(C)?this._default_headers:this._http_headers;B[A]=D;if(C){this._has_default_headers=true;}else{this._has_http_headers=true;}},setHeader:function(A){var B;if(this._has_default_headers){for(B in this._default_headers){if(YAHOO.lang.hasOwnProperty(this._default_headers,B)){A.conn.setRequestHeader(B,this._default_headers[B]);}}}if(this._has_http_headers){for(B in this._http_headers){if(YAHOO.lang.hasOwnProperty(this._http_headers,B)){A.conn.setRequestHeader(B,this._http_headers[B]);
}}this._http_headers={};this._has_http_headers=false;}},resetDefaultHeaders:function(){this._default_headers={};this._has_default_headers=false;},abort:function(E,G,A){var D,B=(G&&G.argument)?G.argument:null;E=E||{};if(E.conn){if(E.xhr){if(this.isCallInProgress(E)){E.conn.abort();window.clearInterval(this._poll[E.tId]);delete this._poll[E.tId];if(A){window.clearTimeout(this._timeOut[E.tId]);delete this._timeOut[E.tId];}D=true;}}else{if(E.xdr){E.conn.abort(E.tId);D=true;}}}else{if(E.upload){var C="yuiIO"+E.tId;var F=document.getElementById(C);if(F){YAHOO.util.Event.removeListener(F,"load");document.body.removeChild(F);if(A){window.clearTimeout(this._timeOut[E.tId]);delete this._timeOut[E.tId];}D=true;}}else{D=false;}}if(D===true){this.abortEvent.fire(E,B);if(E.abortEvent){E.abortEvent.fire(E,B);}this.handleTransactionResponse(E,G,true);}return D;},isCallInProgress:function(A){A=A||{};if(A.xhr&&A.conn){return A.conn.readyState!==4&&A.conn.readyState!==0;}else{if(A.xdr&&A.conn){return A.conn.isCallInProgress(A.tId);}else{if(A.upload===true){return document.getElementById("yuiIO"+A.tId)?true:false;}else{return false;}}}},releaseObject:function(A){if(A&&A.conn){A.conn=null;A=null;}}};(function(){var G=YAHOO.util.Connect,H={};function D(I){var J='<object id="YUIConnectionSwf" type="application/x-shockwave-flash" data="'+I+'" width="0" height="0">'+'<param name="movie" value="'+I+'">'+'<param name="allowScriptAccess" value="always">'+"</object>",K=document.createElement("div");document.body.appendChild(K);K.innerHTML=J;}function B(L,I,J,M,K){H[parseInt(L.tId)]={"o":L,"c":M};if(K){M.method=I;M.data=K;}L.conn.send(J,M,L.tId);}function E(I){D(I);G._transport=document.getElementById("YUIConnectionSwf");}function C(){G.xdrReadyEvent.fire();}function A(J,I){if(J){G.startEvent.fire(J,I.argument);if(J.startEvent){J.startEvent.fire(J,I.argument);}}}function F(J){var K=H[J.tId].o,I=H[J.tId].c;if(J.statusText==="xdr:start"){A(K,I);return;}J.responseText=decodeURI(J.responseText);K.r=J;if(I.argument){K.r.argument=I.argument;}this.handleTransactionResponse(K,I,J.statusText==="xdr:abort"?true:false);delete H[J.tId];}G.xdr=B;G.swf=D;G.transport=E;G.xdrReadyEvent=new YAHOO.util.CustomEvent("xdrReady");G.xdrReady=C;G.handleXdrResponse=F;})();(function(){var D=YAHOO.util.Connect,F=YAHOO.util.Event;D._isFormSubmit=false;D._isFileUpload=false;D._formNode=null;D._sFormData=null;D._submitElementValue=null;D.uploadEvent=new YAHOO.util.CustomEvent("upload"),D._hasSubmitListener=function(){if(F){F.addListener(document,"click",function(J){var I=F.getTarget(J),H=I.nodeName.toLowerCase();if((H==="input"||H==="button")&&(I.type&&I.type.toLowerCase()=="submit")){D._submitElementValue=encodeURIComponent(I.name)+"="+encodeURIComponent(I.value);}});return true;}return false;}();function G(T,O,J){var S,I,R,P,W,Q=false,M=[],V=0,L,N,K,U,H;this.resetFormState();if(typeof T=="string"){S=(document.getElementById(T)||document.forms[T]);}else{if(typeof T=="object"){S=T;}else{return;}}if(O){this.createFrame(J?J:null);this._isFormSubmit=true;this._isFileUpload=true;this._formNode=S;return;}for(L=0,N=S.elements.length;L<N;++L){I=S.elements[L];W=I.disabled;R=I.name;if(!W&&R){R=encodeURIComponent(R)+"=";P=encodeURIComponent(I.value);switch(I.type){case"select-one":if(I.selectedIndex>-1){H=I.options[I.selectedIndex];M[V++]=R+encodeURIComponent((H.attributes.value&&H.attributes.value.specified)?H.value:H.text);}break;case"select-multiple":if(I.selectedIndex>-1){for(K=I.selectedIndex,U=I.options.length;K<U;++K){H=I.options[K];if(H.selected){M[V++]=R+encodeURIComponent((H.attributes.value&&H.attributes.value.specified)?H.value:H.text);}}}break;case"radio":case"checkbox":if(I.checked){M[V++]=R+P;}break;case"file":case undefined:case"reset":case"button":break;case"submit":if(Q===false){if(this._hasSubmitListener&&this._submitElementValue){M[V++]=this._submitElementValue;}Q=true;}break;default:M[V++]=R+P;}}}this._isFormSubmit=true;this._sFormData=M.join("&");this.initHeader("Content-Type",this._default_form_header);return this._sFormData;}function C(){this._isFormSubmit=false;this._isFileUpload=false;this._formNode=null;this._sFormData="";}function B(H){var I="yuiIO"+this._transaction_id,J;if(YAHOO.env.ua.ie){J=document.createElement('<iframe id="'+I+'" name="'+I+'" />');if(typeof H=="boolean"){J.src="javascript:false";}}else{J=document.createElement("iframe");J.id=I;J.name=I;}J.style.position="absolute";J.style.top="-1000px";J.style.left="-1000px";document.body.appendChild(J);}function E(H){var K=[],I=H.split("&"),J,L;for(J=0;J<I.length;J++){L=I[J].indexOf("=");if(L!=-1){K[J]=document.createElement("input");K[J].type="hidden";K[J].name=decodeURIComponent(I[J].substring(0,L));K[J].value=decodeURIComponent(I[J].substring(L+1));this._formNode.appendChild(K[J]);}}return K;}function A(K,V,L,J){var Q="yuiIO"+K.tId,R="multipart/form-data",T=document.getElementById(Q),M=(document.documentMode&&document.documentMode===8)?true:false,W=this,S=(V&&V.argument)?V.argument:null,U,P,I,O,H,N;H={action:this._formNode.getAttribute("action"),method:this._formNode.getAttribute("method"),target:this._formNode.getAttribute("target")};this._formNode.setAttribute("action",L);this._formNode.setAttribute("method","POST");this._formNode.setAttribute("target",Q);if(YAHOO.env.ua.ie&&!M){this._formNode.setAttribute("encoding",R);}else{this._formNode.setAttribute("enctype",R);}if(J){U=this.appendPostData(J);}this._formNode.submit();this.startEvent.fire(K,S);if(K.startEvent){K.startEvent.fire(K,S);}if(V&&V.timeout){this._timeOut[K.tId]=window.setTimeout(function(){W.abort(K,V,true);},V.timeout);}if(U&&U.length>0){for(P=0;P<U.length;P++){this._formNode.removeChild(U[P]);}}for(I in H){if(YAHOO.lang.hasOwnProperty(H,I)){if(H[I]){this._formNode.setAttribute(I,H[I]);}else{this._formNode.removeAttribute(I);}}}this.resetFormState();N=function(){if(V&&V.timeout){window.clearTimeout(W._timeOut[K.tId]);delete W._timeOut[K.tId];}W.completeEvent.fire(K,S);if(K.completeEvent){K.completeEvent.fire(K,S);
}O={tId:K.tId,argument:V.argument};try{O.responseText=T.contentWindow.document.body?T.contentWindow.document.body.innerHTML:T.contentWindow.document.documentElement.textContent;O.responseXML=T.contentWindow.document.XMLDocument?T.contentWindow.document.XMLDocument:T.contentWindow.document;}catch(X){}if(V&&V.upload){if(!V.scope){V.upload(O);}else{V.upload.apply(V.scope,[O]);}}W.uploadEvent.fire(O);if(K.uploadEvent){K.uploadEvent.fire(O);}F.removeListener(T,"load",N);setTimeout(function(){document.body.removeChild(T);W.releaseObject(K);},100);};F.addListener(T,"load",N);}D.setForm=G;D.resetFormState=C;D.createFrame=B;D.appendPostData=E;D.uploadFile=A;})();YAHOO.register("connection",YAHOO.util.Connect,{version:"2.8.0r4",build:"2446"});/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.8.0r4
*/
YAHOO.util.Attribute=function(B,A){if(A){this.owner=A;this.configure(B,true);}};YAHOO.util.Attribute.prototype={name:undefined,value:null,owner:null,readOnly:false,writeOnce:false,_initialConfig:null,_written:false,method:null,setter:null,getter:null,validator:null,getValue:function(){var A=this.value;if(this.getter){A=this.getter.call(this.owner,this.name,A);}return A;},setValue:function(F,B){var E,A=this.owner,C=this.name;var D={type:C,prevValue:this.getValue(),newValue:F};if(this.readOnly||(this.writeOnce&&this._written)){return false;}if(this.validator&&!this.validator.call(A,F)){return false;}if(!B){E=A.fireBeforeChangeEvent(D);if(E===false){return false;}}if(this.setter){F=this.setter.call(A,F,this.name);if(F===undefined){}}if(this.method){this.method.call(A,F,this.name);}this.value=F;this._written=true;D.type=C;if(!B){this.owner.fireChangeEvent(D);}return true;},configure:function(B,C){B=B||{};if(C){this._written=false;}this._initialConfig=this._initialConfig||{};for(var A in B){if(B.hasOwnProperty(A)){this[A]=B[A];if(C){this._initialConfig[A]=B[A];}}}},resetValue:function(){return this.setValue(this._initialConfig.value);},resetConfig:function(){this.configure(this._initialConfig,true);},refresh:function(A){this.setValue(this.value,A);}};(function(){var A=YAHOO.util.Lang;YAHOO.util.AttributeProvider=function(){};YAHOO.util.AttributeProvider.prototype={_configs:null,get:function(C){this._configs=this._configs||{};var B=this._configs[C];if(!B||!this._configs.hasOwnProperty(C)){return null;}return B.getValue();},set:function(D,E,B){this._configs=this._configs||{};var C=this._configs[D];if(!C){return false;}return C.setValue(E,B);},getAttributeKeys:function(){this._configs=this._configs;var C=[],B;for(B in this._configs){if(A.hasOwnProperty(this._configs,B)&&!A.isUndefined(this._configs[B])){C[C.length]=B;}}return C;},setAttributes:function(D,B){for(var C in D){if(A.hasOwnProperty(D,C)){this.set(C,D[C],B);}}},resetValue:function(C,B){this._configs=this._configs||{};if(this._configs[C]){this.set(C,this._configs[C]._initialConfig.value,B);return true;}return false;},refresh:function(E,C){this._configs=this._configs||{};var F=this._configs;E=((A.isString(E))?[E]:E)||this.getAttributeKeys();for(var D=0,B=E.length;D<B;++D){if(F.hasOwnProperty(E[D])){this._configs[E[D]].refresh(C);}}},register:function(B,C){this.setAttributeConfig(B,C);},getAttributeConfig:function(C){this._configs=this._configs||{};var B=this._configs[C]||{};var D={};for(C in B){if(A.hasOwnProperty(B,C)){D[C]=B[C];}}return D;},setAttributeConfig:function(B,C,D){this._configs=this._configs||{};C=C||{};if(!this._configs[B]){C.name=B;this._configs[B]=this.createAttribute(C);}else{this._configs[B].configure(C,D);}},configureAttribute:function(B,C,D){this.setAttributeConfig(B,C,D);},resetAttributeConfig:function(B){this._configs=this._configs||{};this._configs[B].resetConfig();},subscribe:function(B,C){this._events=this._events||{};if(!(B in this._events)){this._events[B]=this.createEvent(B);}YAHOO.util.EventProvider.prototype.subscribe.apply(this,arguments);},on:function(){this.subscribe.apply(this,arguments);},addListener:function(){this.subscribe.apply(this,arguments);},fireBeforeChangeEvent:function(C){var B="before";B+=C.type.charAt(0).toUpperCase()+C.type.substr(1)+"Change";C.type=B;return this.fireEvent(C.type,C);},fireChangeEvent:function(B){B.type+="Change";return this.fireEvent(B.type,B);},createAttribute:function(B){return new YAHOO.util.Attribute(B,this);}};YAHOO.augment(YAHOO.util.AttributeProvider,YAHOO.util.EventProvider);})();(function(){var B=YAHOO.util.Dom,D=YAHOO.util.AttributeProvider,C={mouseenter:true,mouseleave:true};var A=function(E,F){this.init.apply(this,arguments);};A.DOM_EVENTS={"click":true,"dblclick":true,"keydown":true,"keypress":true,"keyup":true,"mousedown":true,"mousemove":true,"mouseout":true,"mouseover":true,"mouseup":true,"mouseenter":true,"mouseleave":true,"focus":true,"blur":true,"submit":true,"change":true};A.prototype={DOM_EVENTS:null,DEFAULT_HTML_SETTER:function(G,E){var F=this.get("element");if(F){F[E]=G;}return G;},DEFAULT_HTML_GETTER:function(E){var F=this.get("element"),G;if(F){G=F[E];}return G;},appendChild:function(E){E=E.get?E.get("element"):E;return this.get("element").appendChild(E);},getElementsByTagName:function(E){return this.get("element").getElementsByTagName(E);},hasChildNodes:function(){return this.get("element").hasChildNodes();},insertBefore:function(E,F){E=E.get?E.get("element"):E;F=(F&&F.get)?F.get("element"):F;return this.get("element").insertBefore(E,F);},removeChild:function(E){E=E.get?E.get("element"):E;return this.get("element").removeChild(E);},replaceChild:function(E,F){E=E.get?E.get("element"):E;F=F.get?F.get("element"):F;return this.get("element").replaceChild(E,F);},initAttributes:function(E){},addListener:function(J,I,K,H){H=H||this;var E=YAHOO.util.Event,G=this.get("element")||this.get("id"),F=this;if(C[J]&&!E._createMouseDelegate){return false;}if(!this._events[J]){if(G&&this.DOM_EVENTS[J]){E.on(G,J,function(M,L){if(M.srcElement&&!M.target){M.target=M.srcElement;}if((M.toElement&&!M.relatedTarget)||(M.fromElement&&!M.relatedTarget)){M.relatedTarget=E.getRelatedTarget(M);}if(!M.currentTarget){M.currentTarget=G;}F.fireEvent(J,M,L);},K,H);}this.createEvent(J,{scope:this});}return YAHOO.util.EventProvider.prototype.subscribe.apply(this,arguments);},on:function(){return this.addListener.apply(this,arguments);},subscribe:function(){return this.addListener.apply(this,arguments);},removeListener:function(F,E){return this.unsubscribe.apply(this,arguments);},addClass:function(E){B.addClass(this.get("element"),E);},getElementsByClassName:function(F,E){return B.getElementsByClassName(F,E,this.get("element"));},hasClass:function(E){return B.hasClass(this.get("element"),E);},removeClass:function(E){return B.removeClass(this.get("element"),E);},replaceClass:function(F,E){return B.replaceClass(this.get("element"),F,E);},setStyle:function(F,E){return B.setStyle(this.get("element"),F,E);
},getStyle:function(E){return B.getStyle(this.get("element"),E);},fireQueue:function(){var F=this._queue;for(var G=0,E=F.length;G<E;++G){this[F[G][0]].apply(this,F[G][1]);}},appendTo:function(F,G){F=(F.get)?F.get("element"):B.get(F);this.fireEvent("beforeAppendTo",{type:"beforeAppendTo",target:F});G=(G&&G.get)?G.get("element"):B.get(G);var E=this.get("element");if(!E){return false;}if(!F){return false;}if(E.parent!=F){if(G){F.insertBefore(E,G);}else{F.appendChild(E);}}this.fireEvent("appendTo",{type:"appendTo",target:F});return E;},get:function(E){var G=this._configs||{},F=G.element;if(F&&!G[E]&&!YAHOO.lang.isUndefined(F.value[E])){this._setHTMLAttrConfig(E);}return D.prototype.get.call(this,E);},setAttributes:function(K,H){var F={},I=this._configOrder;for(var J=0,E=I.length;J<E;++J){if(K[I[J]]!==undefined){F[I[J]]=true;this.set(I[J],K[I[J]],H);}}for(var G in K){if(K.hasOwnProperty(G)&&!F[G]){this.set(G,K[G],H);}}},set:function(F,H,E){var G=this.get("element");if(!G){this._queue[this._queue.length]=["set",arguments];if(this._configs[F]){this._configs[F].value=H;}return;}if(!this._configs[F]&&!YAHOO.lang.isUndefined(G[F])){this._setHTMLAttrConfig(F);}return D.prototype.set.apply(this,arguments);},setAttributeConfig:function(E,F,G){this._configOrder.push(E);D.prototype.setAttributeConfig.apply(this,arguments);},createEvent:function(F,E){this._events[F]=true;return D.prototype.createEvent.apply(this,arguments);},init:function(F,E){this._initElement(F,E);},destroy:function(){var E=this.get("element");YAHOO.util.Event.purgeElement(E,true);this.unsubscribeAll();if(E&&E.parentNode){E.parentNode.removeChild(E);}this._queue=[];this._events={};this._configs={};this._configOrder=[];},_initElement:function(G,F){this._queue=this._queue||[];this._events=this._events||{};this._configs=this._configs||{};this._configOrder=[];F=F||{};F.element=F.element||G||null;var I=false;var E=A.DOM_EVENTS;this.DOM_EVENTS=this.DOM_EVENTS||{};for(var H in E){if(E.hasOwnProperty(H)){this.DOM_EVENTS[H]=E[H];}}if(typeof F.element==="string"){this._setHTMLAttrConfig("id",{value:F.element});}if(B.get(F.element)){I=true;this._initHTMLElement(F);this._initContent(F);}YAHOO.util.Event.onAvailable(F.element,function(){if(!I){this._initHTMLElement(F);}this.fireEvent("available",{type:"available",target:B.get(F.element)});},this,true);YAHOO.util.Event.onContentReady(F.element,function(){if(!I){this._initContent(F);}this.fireEvent("contentReady",{type:"contentReady",target:B.get(F.element)});},this,true);},_initHTMLElement:function(E){this.setAttributeConfig("element",{value:B.get(E.element),readOnly:true});},_initContent:function(E){this.initAttributes(E);this.setAttributes(E,true);this.fireQueue();},_setHTMLAttrConfig:function(E,G){var F=this.get("element");G=G||{};G.name=E;G.setter=G.setter||this.DEFAULT_HTML_SETTER;G.getter=G.getter||this.DEFAULT_HTML_GETTER;G.value=G.value||F[E];this._configs[E]=new YAHOO.util.Attribute(G,this);}};YAHOO.augment(A,D);YAHOO.util.Element=A;})();YAHOO.register("element",YAHOO.util.Element,{version:"2.8.0r4",build:"2446"});/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.8.0r4
*/
(function(){var B=YAHOO.util,C=B.Dom,H=B.Event,F=window.document,J="active",D="activeIndex",E="activeTab",A="contentEl",G="element",I=function(L,K){K=K||{};if(arguments.length==1&&!YAHOO.lang.isString(L)&&!L.nodeName){K=L;L=K.element||null;}if(!L&&!K.element){L=this._createTabViewElement(K);}I.superclass.constructor.call(this,L,K);};YAHOO.extend(I,B.Element,{CLASSNAME:"yui-navset",TAB_PARENT_CLASSNAME:"yui-nav",CONTENT_PARENT_CLASSNAME:"yui-content",_tabParent:null,_contentParent:null,addTab:function(P,L){var N=this.get("tabs"),Q=this.getTab(L),R=this._tabParent,K=this._contentParent,M=P.get(G),O=P.get(A);if(!N){this._queue[this._queue.length]=["addTab",arguments];return false;}L=(L===undefined)?N.length:L;N.splice(L,0,P);if(Q){R.insertBefore(M,Q.get(G));}else{R.appendChild(M);}if(O&&!C.isAncestor(K,O)){K.appendChild(O);}if(!P.get(J)){P.set("contentVisible",false,true);}else{this.set(E,P,true);this.set("activeIndex",L,true);}this._initTabEvents(P);},_initTabEvents:function(K){K.addListener(K.get("activationEvent"),K._onActivate,this,K);K.addListener(K.get("activationEventChange"),K._onActivationEventChange,this,K);},_removeTabEvents:function(K){K.removeListener(K.get("activationEvent"),K._onActivate,this,K);K.removeListener("activationEventChange",K._onActivationEventChange,this,K);},DOMEventHandler:function(P){var Q=H.getTarget(P),S=this._tabParent,R=this.get("tabs"),M,L,K;if(C.isAncestor(S,Q)){for(var N=0,O=R.length;N<O;N++){L=R[N].get(G);K=R[N].get(A);if(Q==L||C.isAncestor(L,Q)){M=R[N];break;}}if(M){M.fireEvent(P.type,P);}}},getTab:function(K){return this.get("tabs")[K];},getTabIndex:function(O){var L=null,N=this.get("tabs");for(var M=0,K=N.length;M<K;++M){if(O==N[M]){L=M;break;}}return L;},removeTab:function(M){var L=this.get("tabs").length,K=this.getTabIndex(M);if(M===this.get(E)){if(L>1){if(K+1===L){this.set(D,K-1);}else{this.set(D,K+1);}}else{this.set(E,null);}}this._removeTabEvents(M);this._tabParent.removeChild(M.get(G));this._contentParent.removeChild(M.get(A));this._configs.tabs.value.splice(K,1);M.fireEvent("remove",{type:"remove",tabview:this});},toString:function(){var K=this.get("id")||this.get("tagName");return"TabView "+K;},contentTransition:function(L,K){if(L){L.set("contentVisible",true);}if(K){K.set("contentVisible",false);}},initAttributes:function(K){I.superclass.initAttributes.call(this,K);if(!K.orientation){K.orientation="top";}var M=this.get(G);if(!C.hasClass(M,this.CLASSNAME)){C.addClass(M,this.CLASSNAME);}this.setAttributeConfig("tabs",{value:[],readOnly:true});this._tabParent=this.getElementsByClassName(this.TAB_PARENT_CLASSNAME,"ul")[0]||this._createTabParent();this._contentParent=this.getElementsByClassName(this.CONTENT_PARENT_CLASSNAME,"div")[0]||this._createContentParent();this.setAttributeConfig("orientation",{value:K.orientation,method:function(N){var O=this.get("orientation");this.addClass("yui-navset-"+N);if(O!=N){this.removeClass("yui-navset-"+O);}if(N==="bottom"){this.appendChild(this._tabParent);}}});this.setAttributeConfig(D,{value:K.activeIndex,validator:function(O){var N=true;if(O&&this.getTab(O).get("disabled")){N=false;}return N;}});this.setAttributeConfig(E,{value:K.activeTab,method:function(O){var N=this.get(E);if(O){O.set(J,true);}if(N&&N!==O){N.set(J,false);}if(N&&O!==N){this.contentTransition(O,N);}else{if(O){O.set("contentVisible",true);}}},validator:function(O){var N=true;if(O&&O.get("disabled")){N=false;}return N;}});this.on("activeTabChange",this._onActiveTabChange);this.on("activeIndexChange",this._onActiveIndexChange);if(this._tabParent){this._initTabs();}this.DOM_EVENTS.submit=false;this.DOM_EVENTS.focus=false;this.DOM_EVENTS.blur=false;for(var L in this.DOM_EVENTS){if(YAHOO.lang.hasOwnProperty(this.DOM_EVENTS,L)){this.addListener.call(this,L,this.DOMEventHandler);}}},deselectTab:function(K){if(this.getTab(K)===this.get("activeTab")){this.set("activeTab",null);}},selectTab:function(K){this.set("activeTab",this.getTab(K));},_onActiveTabChange:function(M){var K=this.get(D),L=this.getTabIndex(M.newValue);if(K!==L){if(!(this.set(D,L))){this.set(E,M.prevValue);}}},_onActiveIndexChange:function(K){if(K.newValue!==this.getTabIndex(this.get(E))){if(!(this.set(E,this.getTab(K.newValue)))){this.set(D,K.prevValue);}}},_initTabs:function(){var P=C.getChildren(this._tabParent),N=C.getChildren(this._contentParent),M=this.get(D),Q,L,R;for(var O=0,K=P.length;O<K;++O){L={};if(N[O]){L.contentEl=N[O];}Q=new YAHOO.widget.Tab(P[O],L);this.addTab(Q);if(Q.hasClass(Q.ACTIVE_CLASSNAME)){R=Q;}}if(M){this.set(E,this.getTab(M));}else{this._configs.activeTab.value=R;this._configs.activeIndex.value=this.getTabIndex(R);}},_createTabViewElement:function(K){var L=F.createElement("div");if(this.CLASSNAME){L.className=this.CLASSNAME;}return L;},_createTabParent:function(K){var L=F.createElement("ul");if(this.TAB_PARENT_CLASSNAME){L.className=this.TAB_PARENT_CLASSNAME;}this.get(G).appendChild(L);return L;},_createContentParent:function(K){var L=F.createElement("div");if(this.CONTENT_PARENT_CLASSNAME){L.className=this.CONTENT_PARENT_CLASSNAME;}this.get(G).appendChild(L);return L;}});YAHOO.widget.TabView=I;})();(function(){var D=YAHOO.util,I=D.Dom,L=YAHOO.lang,M="activeTab",J="label",G="labelEl",Q="content",C="contentEl",O="element",P="cacheData",B="dataSrc",H="dataLoaded",A="dataTimeout",N="loadMethod",F="postData",K="disabled",E=function(S,R){R=R||{};if(arguments.length==1&&!L.isString(S)&&!S.nodeName){R=S;S=R.element;}if(!S&&!R.element){S=this._createTabElement(R);}this.loadHandler={success:function(T){this.set(Q,T.responseText);},failure:function(T){}};E.superclass.constructor.call(this,S,R);this.DOM_EVENTS={};};YAHOO.extend(E,YAHOO.util.Element,{LABEL_TAGNAME:"em",ACTIVE_CLASSNAME:"selected",HIDDEN_CLASSNAME:"yui-hidden",ACTIVE_TITLE:"active",DISABLED_CLASSNAME:K,LOADING_CLASSNAME:"loading",dataConnection:null,loadHandler:null,_loading:false,toString:function(){var R=this.get(O),S=R.id||R.tagName;return"Tab "+S;},initAttributes:function(R){R=R||{};E.superclass.initAttributes.call(this,R);
this.setAttributeConfig("activationEvent",{value:R.activationEvent||"click"});this.setAttributeConfig(G,{value:R[G]||this._getLabelEl(),method:function(S){S=I.get(S);var T=this.get(G);if(T){if(T==S){return false;}T.parentNode.replaceChild(S,T);this.set(J,S.innerHTML);}}});this.setAttributeConfig(J,{value:R.label||this._getLabel(),method:function(T){var S=this.get(G);if(!S){this.set(G,this._createLabelEl());}S.innerHTML=T;}});this.setAttributeConfig(C,{value:R[C]||document.createElement("div"),method:function(S){S=I.get(S);var T=this.get(C);if(T){if(T===S){return false;}if(!this.get("selected")){I.addClass(S,this.HIDDEN_CLASSNAME);}T.parentNode.replaceChild(S,T);this.set(Q,S.innerHTML);}}});this.setAttributeConfig(Q,{value:R[Q],method:function(S){this.get(C).innerHTML=S;}});this.setAttributeConfig(B,{value:R.dataSrc});this.setAttributeConfig(P,{value:R.cacheData||false,validator:L.isBoolean});this.setAttributeConfig(N,{value:R.loadMethod||"GET",validator:L.isString});this.setAttributeConfig(H,{value:false,validator:L.isBoolean,writeOnce:true});this.setAttributeConfig(A,{value:R.dataTimeout||null,validator:L.isNumber});this.setAttributeConfig(F,{value:R.postData||null});this.setAttributeConfig("active",{value:R.active||this.hasClass(this.ACTIVE_CLASSNAME),method:function(S){if(S===true){this.addClass(this.ACTIVE_CLASSNAME);this.set("title",this.ACTIVE_TITLE);}else{this.removeClass(this.ACTIVE_CLASSNAME);this.set("title","");}},validator:function(S){return L.isBoolean(S)&&!this.get(K);}});this.setAttributeConfig(K,{value:R.disabled||this.hasClass(this.DISABLED_CLASSNAME),method:function(S){if(S===true){I.addClass(this.get(O),this.DISABLED_CLASSNAME);}else{I.removeClass(this.get(O),this.DISABLED_CLASSNAME);}},validator:L.isBoolean});this.setAttributeConfig("href",{value:R.href||this.getElementsByTagName("a")[0].getAttribute("href",2)||"#",method:function(S){this.getElementsByTagName("a")[0].href=S;},validator:L.isString});this.setAttributeConfig("contentVisible",{value:R.contentVisible,method:function(S){if(S){I.removeClass(this.get(C),this.HIDDEN_CLASSNAME);if(this.get(B)){if(!this._loading&&!(this.get(H)&&this.get(P))){this._dataConnect();}}}else{I.addClass(this.get(C),this.HIDDEN_CLASSNAME);}},validator:L.isBoolean});},_dataConnect:function(){if(!D.Connect){return false;}I.addClass(this.get(C).parentNode,this.LOADING_CLASSNAME);this._loading=true;this.dataConnection=D.Connect.asyncRequest(this.get(N),this.get(B),{success:function(R){this.loadHandler.success.call(this,R);this.set(H,true);this.dataConnection=null;I.removeClass(this.get(C).parentNode,this.LOADING_CLASSNAME);this._loading=false;},failure:function(R){this.loadHandler.failure.call(this,R);this.dataConnection=null;I.removeClass(this.get(C).parentNode,this.LOADING_CLASSNAME);this._loading=false;},scope:this,timeout:this.get(A)},this.get(F));},_createTabElement:function(R){var V=document.createElement("li"),S=document.createElement("a"),U=R.label||null,T=R.labelEl||null;S.href=R.href||"#";V.appendChild(S);if(T){if(!U){U=this._getLabel();}}else{T=this._createLabelEl();}S.appendChild(T);return V;},_getLabelEl:function(){return this.getElementsByTagName(this.LABEL_TAGNAME)[0];},_createLabelEl:function(){var R=document.createElement(this.LABEL_TAGNAME);return R;},_getLabel:function(){var R=this.get(G);if(!R){return undefined;}return R.innerHTML;},_onActivate:function(U,T){var S=this,R=false;D.Event.preventDefault(U);if(S===T.get(M)){R=true;}T.set(M,S,R);},_onActivationEventChange:function(S){var R=this;if(S.prevValue!=S.newValue){R.removeListener(S.prevValue,R._onActivate);R.addListener(S.newValue,R._onActivate,this,R);}}});YAHOO.widget.Tab=E;})();YAHOO.register("tabview",YAHOO.widget.TabView,{version:"2.8.0r4",build:"2446"});