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

var Prototype = {

  Version: '1.7',

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

  BrowserFeatures: {
    XPath: !!document.evaluate,

    SelectorsAPI: !!document.querySelector,

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

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

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

      div = form = null;

      return isSupported;
    })()
  },

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

  emptyFunction: function() { },

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

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


var Abstract = { };


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

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

    return returnValue;
  }
};

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

var Class = (function() {

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

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

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

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

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

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

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

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

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

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

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

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

    return this;
  }

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

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

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

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

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

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

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

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

    var _class = _toString.call(value);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  function isFunction(object) {
    return _toString.call(object) === FUNCTION_CLASS;
  }

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

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

  function isDate(object) {
    return _toString.call(object) === DATE_CLASS;
  }

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

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

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

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

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

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

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

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

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

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

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

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

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



(function(proto) {


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


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

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

})(Date.prototype);


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

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

    this.registerCallback();
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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









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

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


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

Array.from = $A;


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

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

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

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

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

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

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

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

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

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

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


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

  function size() {
    return this.length;
  }

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

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

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

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

  Object.extend(arrayProto, Enumerable);

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

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

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

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

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

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


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

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

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

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

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



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

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

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

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

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

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

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

      if (values && typeof values == 'object') {
        if (Object.isArray(values)) {
          var queryValues = [];
          for (var i = 0, len = values.length, value; i < len; i++) {
            value = values[i];
            queryValues.push(toQueryPair(key, value));
          }
          return results.concat(queryValues);
        }
      } else results.push(toQueryPair(key, values));
      return results;
    }).join('&');
  }

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

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

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

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

  function succ() {
    return this + 1;
  }

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

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

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

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

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

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

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

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

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

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

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

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



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

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

    if (Object.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.isString(this.options.parameters) ?
          this.options.parameters :
          Object.toQueryString(this.options.parameters);

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

    if (params && this.method === 'get') {
      this.url += (this.url.include('?') ? '&' : '?') + params;
    }

    this.parameters = params.toQueryParams();

    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) || status == 304;
  },

  getStatus: function() {
    try {
      if (this.transport.status === 1223) return 204;
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

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

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

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

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

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

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

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

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

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

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








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

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

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

  status:      0,

  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

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

  getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

    $super(url, options);
  },

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

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

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

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

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

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

    this.start();
  },

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

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

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

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

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


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

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

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

if (!Node) var Node = { };

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



(function(global) {
  function shouldUseCache(tagName, attributes) {
    if (tagName === 'select') return false;
    if ('type' in attributes) return false;
    return true;
  }

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

  var element = global.Element;

  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;

    if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }

    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));

    var node = shouldUseCache(tagName, attributes) ?
     cache[tagName].cloneNode(false) : document.createElement(tagName);

    return Element.writeAttribute(node, attributes);
  };

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

})(this);

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

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

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

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

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

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

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

  update: (function(){

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

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

    var LINK_ELEMENT_INNERHTML_BUGGY = (function() {
      try {
        var el = document.createElement('div');
        el.innerHTML = "<link>";
        var isBuggy = (el.childNodes.length === 0);
        el = null;
        return isBuggy;
      } catch(e) {
        return true;
      }
    })();

    var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
     TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;

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


    function update(element, content) {
      element = $(element);
      var purgeElement = Element._purgeElement;

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

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

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

      content = Object.toHTML(content);

      var tagName = element.tagName.toUpperCase();

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

      if (ANY_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 if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1) {
          while (element.firstChild) {
            element.removeChild(element.firstChild);
          }
          var nodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
          nodes.each(function(node) { element.appendChild(node) });
        }
        else {
          element.innerHTML = content.stripScripts();
        }
      }
      else {
        element.innerHTML = content.stripScripts();
      }

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

    return update;
  })(),

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

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

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

    var content, insert, tagName, childNodes;

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

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

      content = Object.toHTML(content);

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

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

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

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

    return element;
  },

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

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

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

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

    return elements;
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    return false;
  },

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

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

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

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

    return element;
  },

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

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

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

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

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

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

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

    element = $(element);

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

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

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

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

  childElements: Element.Methods.immediateDescendants
});

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

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

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

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

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

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

  Element._attributeTranslations = (function(){

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

    el.setAttribute(classProp, 'x');

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

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

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

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

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

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

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

  Element._attributeTranslations.has = {};

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

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

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

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

}

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

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

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

    return element;
  };
}

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

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

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

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

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

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

Element._getContentFromAnonymousElement = function(tagName, html, force) {
  var div = new Element('div'),
      t = Element._insertionTranslations.tags[tagName];

  var workaround = false;
  if (t) workaround = true;
  else if (force) {
    workaround = true;
    t = ['', '', 0];
  }

  if (workaround) {
    div.innerHTML = '&nbsp;' + t[0] + html + t[1];
    div.removeChild(div.firstChild);
    for (var i = t[2]; i--; ) {
      div = div.firstChild;
    }
  }
  else {
    div.innerHTML = html;
  }
  return $A(div.childNodes);
};

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

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function(div) {

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

  div = null;

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

Element.extend = (function() {

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

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

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

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

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

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

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

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

    extendElementWith(element, methods);

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

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

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

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

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

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

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

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

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

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

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

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

    element = null;
    return proto;
  }

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

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

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

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

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


document.viewport = {

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

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

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

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

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

    return document.documentElement;
  }

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

    property[D] = 'client' + D;

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

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

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


Element.Storage = {
  UID: 1
};

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

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

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

    return Element.Storage[uid];
  },

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

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

    return element;
  },

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

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

    return value;
  },

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

  purge: function(element) {
    if (!(element = $(element))) return;
    var purgeElement = Element._purgeElement;

    purgeElement(element);

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

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

    return null;
  }
});

(function() {

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

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

    if (value === null) {
      return null;
    }

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

    var isPercentage = value.include('%'), isViewport = (context === document.viewport);

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

      return value;
    }

    if (element && isPercentage) {
      context = context || element.parentNode;
      var decimal = toDecimal(value);
      var whole = null;
      var position = element.getStyle('position');

      var isHorizontal = property.include('left') || property.include('right') ||
       property.include('width');

      var isVertical =  property.include('top') || property.include('bottom') ||
        property.include('height');

      if (context === document.viewport) {
        if (isHorizontal) {
          whole = document.viewport.getWidth();
        } else if (isVertical) {
          whole = document.viewport.getHeight();
        }
      } else {
        if (isHorizontal) {
          whole = $(context).measure('width');
        } else if (isVertical) {
          whole = $(context).measure('height');
        }
      }

      return (whole === null) ? 0 : whole * decimal;
    }

    return 0;
  }

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

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

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

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

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

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

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

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

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

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

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

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

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

      element.store('prototype_original_styles', originalStyles);

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

      if (width === "0px" || width === null) {
        element.style.display = 'block';
        width = element.getStyle('width');
      }

      var context = (position === 'fixed') ? document.viewport :
       element.parentNode;

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

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

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

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

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

      this._prepared = true;
    },

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

    _compute: function(property) {
      var COMPUTATIONS = Element.Layout.COMPUTATIONS;
      if (!(property in COMPUTATIONS)) {
        throw "Property not found.";
      }

      return this._set(property, COMPUTATIONS[property].call(this, this.element));
    },

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

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

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

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

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

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

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

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

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

        var bHeight = this.get('border-box-height');
        if (bHeight <= 0) {
          if (!this._preComputing) this._end();
          return 0;
        }

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

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

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

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

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

        var bWidth = this.get('border-box-width');
        if (bWidth <= 0) {
          if (!this._preComputing) this._end();
          return 0;
        }

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

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

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

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

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

        return height + pTop + pBottom;
      },

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

        return width + pLeft + pRight;
      },

      'border-box-height': function(element) {
        if (!this._preComputing) this._begin();
        var height = element.offsetHeight;
        if (!this._preComputing) this._end();
        return height;
      },

      'border-box-width': function(element) {
        if (!this._preComputing) this._begin();
        var width = element.offsetWidth;
        if (!this._preComputing) this._end();
        return width;
      },

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

        if (bHeight <= 0) return 0;

        return bHeight + mTop + mBottom;
      },

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

        if (bWidth <= 0) return 0;

        return bWidth + mLeft + mRight;
      },

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

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

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

        return pHeight - mHeight - offset.top;
      },

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

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

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

        return pWidth - mWidth - offset.left;
      },

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

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

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

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

      'border-top': function(element) {
        return getPixelValue(element, 'borderTopWidth');
      },

      'border-bottom': function(element) {
        return getPixelValue(element, 'borderBottomWidth');
      },

      'border-left': function(element) {
        return getPixelValue(element, 'borderLeftWidth');
      },

      'border-right': function(element) {
        return getPixelValue(element, 'borderRightWidth');
      },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  function getDimensions(element) {
    element = $(element);
    var display = Element.getStyle(element, 'display');

    if (display && display !== 'none') {
      return { width: element.offsetWidth, height: element.offsetHeight };
    }

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

    var newStyles = {
      visibility: 'hidden',
      display:    'block'
    };

    if (originalStyles.position !== 'fixed')
      newStyles.position = 'absolute';

    Element.setStyle(element, newStyles);

    var dimensions = {
      width:  element.offsetWidth,
      height: element.offsetHeight
    };

    Element.setStyle(element, originalStyles);

    return dimensions;
  }

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

    if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
      return $(document.body);

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

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

    return $(document.body);
  }


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

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

    var layout = element.getLayout();

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

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

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

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

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

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

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

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

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

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

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

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

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

    return element;
  }

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

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

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

  if (Prototype.Browser.IE) {
    getOffsetParent = getOffsetParent.wrap(
      function(proceed, element) {
        element = $(element);

        if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
          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;
      }
    );

    positionedOffset = positionedOffset.wrap(function(proceed, element) {
      element = $(element);
      if (!element.parentNode) return new Element.Offset(0, 0);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);

      var offsetParent = element.getOffsetParent();
      if (offsetParent && offsetParent.getStyle('position') === 'fixed')
        hasLayout(offsetParent);

      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    });
  } else if (Prototype.Browser.Webkit) {
    cumulativeOffset = function(element) {
      element = $(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 new Element.Offset(valueL, valueT);
    };
  }


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

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

  function isHtml(element) {
    return element.nodeName.toUpperCase() === 'HTML';
  }

  function isDocument(element) {
    return element.nodeType === Node.DOCUMENT_NODE;
  }

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

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

        var rect = element.getBoundingClientRect(),
         docEl = document.documentElement;
        return new Element.Offset(rect.left - docEl.clientLeft,
         rect.top - docEl.clientTop);
      }
    });
  }
})();
window.$$ = function() {
  var expression = $A(arguments).join(', ');
  return Prototype.Selector.select(expression, document);
};

Prototype.Selector = (function() {

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

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

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

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

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


  var K = Prototype.K;

  return {
    select: select,
    match: match,
    find: find,
    extendElements: (Element.extend === K) ? K : extendElements,
    extendElement: Element.extend
  };
})();

Prototype._original_property = window.NW;

/*
 * Copyright (C) 2007-2010 Diego Perini
 * All rights reserved.
 *
 * nwmatcher.js - A fast CSS selector engine and matcher
 *
 * Author: Diego Perini <diego.perini at gmail com>
 * Version: 1.2.3
 * Created: 20070722
 * Release: 20100901
 *
 * License:
 *  http://javascript.nwbox.com/NWMatcher/MIT-LICENSE
 * Download:
 *  http://javascript.nwbox.com/NWMatcher/nwmatcher.js
 */

(function(global) {

  var version = 'nwmatcher-1.2.3',

  doc = global.document,

  root = doc.documentElement,

  slice = Array.prototype.slice,

  lastError = '',
  lastSlice = '',
  lastMatcher = '',
  lastSelector = '',
  isSingleMatch = false,
  isSingleSelect = false,

  lastMatchContext = doc,
  lastSelectContext = doc,

  prefixes = '[.:#]?',

  operators = '([~*^$|!]?={1})',

  whitespace = '[\\x20\\t\\n\\r\\f]*',

  combinators = '[\\x20]|[>+~][^>+~]',

  pseudoparms = '[-+]?\\d*n?[-+]?\\d*',

  quotedvalue = '"[^"]*"' + "|'[^']*'",

  encoding = '(?:[-\\w]|[^\\x00-\\xa0]|\\\\.)+',

  identifier = '(?:-?[_a-zA-Z]{1}[-\\w]*|[^\\x00-\\xa0]+|\\\\.+)+',

  attributes =
    whitespace + '(' + encoding + ':?' + encoding + ')' +
    whitespace + '(?:' + operators + whitespace + '(' +
    quotedvalue + '|' + identifier + '))?' + whitespace,

  pseudoclass = '((?:' +

    pseudoparms + '|' + quotedvalue + '|' +

    prefixes + '|' + encoding + '|' +

    '\\[' + attributes + '\\]|' +

    '\\(.+\\)|' + whitespace + '|' +

    ',)+)',

  extensions = '.+',

  standardValidator =
    // discard start
    '(?=\s*[^>+~(){}<>])' +

    '(' +

    '\\*' +
 
    '|(?:' + prefixes + identifier + ')' +

    '|' + combinators +

    '|\\[' + attributes + '\\]' +
 
    '|\\(' + pseudoclass + '\\)' +
  
    '|\\{' + extensions + '\\}' +
   
    '|,' +
   
    ')+',

  reValidator = new RegExp(standardValidator, 'g'),

  extendedValidator = standardValidator.replace(pseudoclass, '.*'),

  reTrimSpaces = new RegExp('^' +
    whitespace + '|' + whitespace + '$', 'g'),

  reSimpleNot = new RegExp('^(' +
    '(?!:not)' +
    '(' + prefixes +
    '|' + identifier +
    '|\\([^()]*\\))+' +
    '|\\[' + attributes + '\\]' +
    ')$'),

  skipround = '\\([^()]+\\)|\\(.*\\)',

  skipcurly = '\\{[^{}]+\\}|\\{.*\\}',

  skipsquare = '\\[[^[\\]]*\\]|\\[.*\\]',

  skipgroup = '\\[.*\\]|\\(.*\\)|\\{.*\\}',

  reSplitGroup = new RegExp('(' +
    '[^(,)\\\\\\[\\]]+' +
    '|\\[(?:' + skipsquare +
    '|' + quotedvalue +
    '|[^\\[\\]]+)+\\]' +
    '|' + skipround +
    '|' + skipcurly +
    '|\\\\.' +
    ')+', 'g'),

  reSplitToken = new RegExp('(' +
    '\\(' + pseudoclass + '\\)|' +
    '\\[' + attributes + '\\]|' +
    '[^\x20>+~]|\\\\.)+', 'g'),

  reClassValue = new RegExp('(' + identifier + ')'),
  reIdSelector = new RegExp('#(' + identifier + ')'),
  reWhiteSpace = /[\x20\t\n\r\f]+/g,

  reLeftContext = /^\s*[>+~]{1}/,
  reRightContext = /[>+~]{1}\s*$/,

  isNative = (function() {
    var s = (global.open + '').replace(/open/g, '');
    return function(object, method) {
      var m = object ? object[method] : false, r = new RegExp(method, 'g');
      return !!(m && typeof m != 'string' && s === (m + '').replace(r, ''));
    };
  })(),

  isQuirks =
    function(document) {
      return typeof document.compatMode == 'string' ?
        document.compatMode.indexOf('CSS') < 0 :
        (function() {
          var div = document.createElement('div'),
            isStrict = div.style &&
              (div.style.width = 1) &&
              div.style.width != '1px';
          div = null;
          return !isStrict;
        })();
    },

  isXML = 'xmlVersion' in doc ?
    function(document) {
      return !!document.xmlVersion ||
        (/xml$/).test(document.contentType) ||
        !(/html/i).test(document.documentElement.nodeName);
    } :
    function(document) {
      return document.firstChild.nodeType == 7 &&
        (/xml/i).test(document.firstChild.nodeName) ||
        !(/html/i).test(document.documentElement.nodeName);
    },

  isQuirksMode = isQuirks(doc),
  isXMLDocument = isXML(doc),

  NATIVE_FOCUS = isNative(doc, 'hasFocus'),
  NATIVE_QSAPI = isNative(doc, 'querySelector'),
  NATIVE_GEBID = isNative(doc, 'getElementById'),
  NATIVE_GEBTN = isNative(root, 'getElementsByTagName'),
  NATIVE_GEBCN = isNative(root, 'getElementsByClassName'),

  NATIVE_GET_ATTRIBUTE = isNative(root, 'getAttribute'),
  NATIVE_HAS_ATTRIBUTE = isNative(root, 'hasAttribute'),

  NATIVE_SLICE_PROTO =
    (function() {
      var isBuggy = false, id = root.id;
      root.id = 'length';
      try {
        isBuggy = !!slice.call(doc.childNodes, 0)[0];
      } catch(e) { }
      root.id = id;
      return isBuggy;
    })(),

  NATIVE_TRAVERSAL_API =
    'nextElementSibling' in root && 'previousElementSibling' in root,

  BUGGY_GEBID = NATIVE_GEBID ?
    (function() {
      var isBuggy = true, x = 'x' + String(+new Date),
        a = doc.createElementNS ? 'a' : '<a name="' + x + '">';
      (a = doc.createElement(a)).name = x;
      root.insertBefore(a, root.firstChild);
      isBuggy = !!doc.getElementById(x);
      root.removeChild(a);
      a = null;
      return isBuggy;
    })() :
    true,

  BUGGY_GEBTN = NATIVE_GEBTN ?
    (function() {
      var isBuggy, div = doc.createElement('div');
      div.appendChild(doc.createComment(''));
      isBuggy = div.getElementsByTagName('*')[0];
      div.removeChild(div.firstChild);
      div = null;
      return !!isBuggy;
    })() :
    true,

  BUGGY_GEBCN = NATIVE_GEBCN ?
    (function() {
      var isBuggy, div = doc.createElement('div'), test = '\u53f0\u5317';

      div.appendChild(doc.createElement('span')).
        setAttribute('class', test + 'abc ' + test);
      div.appendChild(doc.createElement('span')).
        setAttribute('class', 'x');

      isBuggy = !div.getElementsByClassName(test)[0];

     div.lastChild.className = test;
      if (!isBuggy)
        isBuggy = div.getElementsByClassName(test).length !== 2;

      div.removeChild(div.firstChild);
      div.removeChild(div.firstChild);
      div = null;
      return isBuggy;
    })() :
    true,

  BUGGY_GET_ATTRIBUTE = NATIVE_GET_ATTRIBUTE ?
    (function() {
      var isBuggy, input;
      (input = doc.createElement('input')).setAttribute('value', '5');
      return isBuggy = input.defaultValue != 5;
    })() :
    true,

  BUGGY_HAS_ATTRIBUTE = NATIVE_HAS_ATTRIBUTE ?
    (function() {
      var isBuggy, option = doc.createElement('option');
      option.setAttribute('selected', 'selected');
      isBuggy = !option.hasAttribute('selected');
      return isBuggy;
    })() :
    true,

  RE_BUGGY_QSAPI = NATIVE_QSAPI ?
    (function() {
      var pattern = [ ], div = doc.createElement('div'), input;

      div.appendChild(doc.createElement('p')).setAttribute('class', 'xXx');
      div.appendChild(doc.createElement('p')).setAttribute('class', 'xxx');
      if (isQuirks(doc) &&
        (div.querySelectorAll('[class~=xxx]').length != 2 ||
        div.querySelectorAll('.xXx').length != 2)) {
        pattern.push('(?:\\[[\\x20\\t\\n\\r\\f]*class\\b|\\.' + identifier + ')');
      }
      div.removeChild(div.firstChild);
      div.removeChild(div.firstChild);
	
	  div.appendChild(doc.createElement('p')).setAttribute('class', '');
      try {
        div.querySelectorAll('[class^=""]').length === 1 &&
          pattern.push('\\[\\s*.*(?=\\^=|\\$=|\\*=).*]');
      } catch(e) { }
      div.removeChild(div.firstChild);

      input = doc.createElement('input');
      input.setAttribute('type', 'checkbox');
      input.setAttribute('checked', 'checked');
      div.appendChild(input);
      try {
        div.querySelectorAll(':checked').length !== 1 &&
          pattern.push(':checked');
      } catch(e) { }
      div.removeChild(div.firstChild);

      (input = doc.createElement('input')).setAttribute('type', 'hidden');
      div.appendChild(input);
      try {
        div.querySelectorAll(':enabled').length === 1 &&
          pattern.push(':enabled', ':disabled');
      } catch(e) { }
      div.removeChild(div.firstChild);

      div.appendChild(doc.createElement('a')).setAttribute('href', 'x');
      div.querySelectorAll(':link').length !== 1 && pattern.push(':link');
      div.removeChild(div.firstChild);

      if (BUGGY_HAS_ATTRIBUTE) {
        pattern.push(
          // IE fails reading original values for input/textarea
          '\\[\\s*value',
          '\\[\\s*ismap',
          '\\[\\s*checked',
          '\\[\\s*disabled',
          '\\[\\s*multiple',
          '\\[\\s*readonly',
          '\\[\\s*selected');
      }

      div = null;
      return pattern.length ?
        new RegExp(pattern.join('|')) :
        { 'test': function() { return false; } };
    })() :
    true,

  RE_SIMPLE_SELECTOR = new RegExp(
    !(BUGGY_GEBTN && BUGGY_GEBCN) ?
      '^(?:\\*|[.#]?-?[_a-zA-Z]{1}' + encoding + ')$' :
      '^#?-?[_a-zA-Z]{1}' + encoding + '$'),

  LINK_NODES = { 'a': 1, 'A': 1, 'area': 1, 'AREA': 1, 'link': 1, 'LINK': 1 },

  QSA_NODE_TYPES = { '9': 1, '11': 1 },

  ATTR_BOOLEAN = {
    checked: 1, disabled: 1, ismap: 1, multiple: 1, readonly: 1, selected: 1
  },

  ATTR_DEFAULT = {
    value: 'defaultValue',
    checked: 'defaultChecked',
    selected: 'defaultSelected'
  },

  ATTR_MAPPING = {
    'class': 'className', 'for': 'htmlFor'
  },

  ATTR_URIDATA = {
    'action': 2, 'cite': 2, 'codebase': 2, 'data': 2, 'href': 2,
    'longdesc': 2, 'lowsrc': 2, 'src': 2, 'usemap': 2
  },

  HTML_TABLE = {
    'class': 0,
    'accept': 1, 'accept-charset': 1, 'align': 1, 'alink': 1, 'axis': 1,
    'bgcolor': 1, 'charset': 1, 'checked': 1, 'clear': 1, 'codetype': 1, 'color': 1,
    'compact': 1, 'declare': 1, 'defer': 1, 'dir': 1, 'direction': 1, 'disabled': 1,
    'enctype': 1, 'face': 1, 'frame': 1, 'hreflang': 1, 'http-equiv': 1, 'lang': 1,
    'language': 1, 'link': 1, 'media': 1, 'method': 1, 'multiple': 1, 'nohref': 1,
    'noresize': 1, 'noshade': 1, 'nowrap': 1, 'readonly': 1, 'rel': 1, 'rev': 1,
    'rules': 1, 'scope': 1, 'scrolling': 1, 'selected': 1, 'shape': 1, 'target': 1,
    'text': 1, 'type': 1, 'valign': 1, 'valuetype': 1, 'vlink': 1
  },

  XHTML_TABLE = {
    'accept': 1, 'accept-charset': 1, 'alink': 1, 'axis': 1,
    'bgcolor': 1, 'charset': 1, 'codetype': 1, 'color': 1,
    'enctype': 1, 'face': 1, 'hreflang': 1, 'http-equiv': 1,
    'lang': 1, 'language': 1, 'link': 1, 'media': 1, 'rel': 1,
    'rev': 1, 'target': 1, 'text': 1, 'type': 1, 'vlink': 1
  },

  Selectors = {

  },

  Operators = {
     '=': "n=='%m'",
    '^=': "n.indexOf('%m')==0",
    '*=': "n.indexOf('%m')>-1",
    '|=': "(n+'-').indexOf('%m-')==0",
    '~=': "(' '+n+' ').indexOf(' %m ')>-1",
    '$=': "n.substr(n.length-'%m'.length)=='%m'"
  },

  Optimize = {
    ID: new RegExp('^#(' + encoding + ')|' + skipgroup),
    TAG: new RegExp('^(' + encoding + ')|' + skipgroup),
    CLASS: new RegExp('^\\.(' + encoding + '$)|' + skipgroup),
    NAME: /\[\s*name\s*=\s*((["']*)([^'"()]*?)\2)?\s*\]/
  },

  Patterns = {

    spseudos: /^\:(root|empty|nth)?-?(first|last|only)?-?(child)?-?(of-type)?(?:\(([^\x29]*)\))?(.*)/,
    
    dpseudos: /^\:([\w]+|[^\x00-\xa0]+)(?:\((["']*)(.*?(\(.*\))?[^'"()]*?)\2\))?(.*)/,
  
    attribute: new RegExp('^\\[' + attributes + '\\](.*)'),

    children: /^[\x20\t\n\r\f]*\>[\x20\t\n\r\f]*(.*)/,

    adjacent: /^[\x20\t\n\r\f]*\+[\x20\t\n\r\f]*(.*)/,

    relative: /^[\x20\t\n\r\f]*\~[\x20\t\n\r\f]*(.*)/,

    ancestor: /^[\x20\t\n\r\f]+(.*)/,

    universal: /^\*(.*)/,

    id: new RegExp('^#(' + encoding + ')(.*)'),

    tagName: new RegExp('^(' + encoding + ')(.*)'),

    className: new RegExp('^\\.(' + encoding + ')(.*)')
  },

  CSS3PseudoClasses = {
    Structural: {
      'root': 3, 'empty': 3,
      'nth-child': 3, 'nth-last-child': 3,
      'nth-of-type': 3, 'nth-last-of-type': 3,
      'first-child': 3, 'last-child': 3, 'only-child': 3,
      'first-of-type': 3, 'last-of-type': 3, 'only-of-type': 3
    },
    Others: {
      'link': 3, 'visited': 3,
      'target': 3, 'lang': 3, 'not': 3,
      'active': 3, 'focus': 3, 'hover': 3,
      'checked': 3, 'disabled': 3, 'enabled': 3
    }
  },

  concatList =
    function(data, elements) {
      var i = -1, element;
      if (data.length === 0 && Array.slice)
        return Array.slice(elements);
      while ((element = elements[++i]))
        data[data.length] = element;
      return data;
    },

  concatCall =
    function(data, elements, callback) {
      var i = -1, element;
      while ((element = elements[++i]))
        callback(data[data.length] = element);
      return data;
    },

  byIdRaw =
    function(id, elements) {
      var i = -1, element = null;
      while ((element = elements[++i])) {
        if (element.getAttribute('id') == id) {
          break;
        }
      }
      return element;
    },

  byId = !BUGGY_GEBID ?
    function(id, from) {
      from || (from = doc);
      id = id.replace(/\\/g, '');
      if (isXMLDocument || from.nodeType != 9) {
        return byIdRaw(id, from.getElementsByTagName('*'));
      }
      return from.getElementById(id);
    } :
    function(id, from) {
      var element = null;
      from || (from = doc);
      id = id.replace(/\\/g, '');
      if (isXMLDocument || from.nodeType != 9) {
        return byIdRaw(id, from.getElementsByTagName('*'));
      }
      if ((element = from.getElementById(id)) &&
        element.name == id && from.getElementsByName) {
        return byIdRaw(id, from.getElementsByName(id));
      }
      return element;
    },

  byTagRaw = function(tag, from) {
    var any = tag == '*', element = from, elements = [ ], next = element.firstChild;
    any || (tag = tag.toUpperCase());
    while ((element = next)) {
      if (element.tagName > '@' && (any || element.tagName.toUpperCase() == tag)) {
        elements[elements.length] = element;
      }
      if (next = element.firstChild || element.nextSibling) continue;
      while (!next && (element = element.parentNode) && element != from) {
        next = element.nextSibling;
      }
    }
    return elements;
  },

  byTag = !BUGGY_GEBTN && NATIVE_SLICE_PROTO ?
    function(tag, from) {
      from || (from = doc);
      return slice.call(from.getElementsByTagName ?
        from.getElementsByTagName(tag) :
        byTagRaw(tag, from), 0);
    } :
    function(tag, from) {
      var i = -1, data = [ ],
        element, elements = (from || doc).getElementsByTagName(tag);
      if (tag == '*') {
        var j = -1;
        while ((element = elements[++i])) {
          if (element.nodeName > '@')
            data[++j] = element;
        }
      } else {
        while ((element = elements[++i])) {
          data[i] = element;
        }
      }
      return data;
    },

  byName =
    function(name, from) {
      return select('[name="' + name.replace(/\\/g, '') + '"]', from || doc);
    },

  byClass = !BUGGY_GEBCN && NATIVE_SLICE_PROTO ?
    function(className, from) {
      return slice.call((from || doc).
        getElementsByClassName(className.replace(/\\/g, '')), 0);
    } :
    function(className, from) {
      from || (from = doc);
      var i = -1, j = i,
        data = [ ], element,
        elements = byTag('*', from),
        host = from.ownerDocument || from,
        quirks = isQuirks(host), xml = isXML(host),
        n = quirks ? className.toLowerCase() : className;
      className = ' ' + n.replace(/\\/g, '') + ' ';
      while ((element = elements[++i])) {
        n = xml ? element.getAttribute('class') : element.className;
        if (n && n.length && (' ' + (quirks ? n.toLowerCase() : n).
          replace(reWhiteSpace, ' ') + ' ').indexOf(className) > -1) {
          data[++j] = element;
        }
      }
      return data;
    },

  contains = 'compareDocumentPosition' in root ?
    function(container, element) {
      return (container.compareDocumentPosition(element) & 16) == 16;
    } : 'contains' in root ?
    function(container, element) {
      return container !== element && container.contains(element);
    } :
    function(container, element) {
      while ((element = element.parentNode)) {
        if (element === container) return true;
      }
      return false;
    },

  getIndexesByNodeType =
    function(element) {
      var i = 0, indexes,
        id = element[CSS_INDEX] || (element[CSS_INDEX] = ++CSS_ID);
      if (!indexesByNodeType[id]) {
        indexes = { };
        element = element.firstChild;
        while (element) {
          if (element.nodeName > '@') {
            indexes[element[CSS_INDEX] || (element[CSS_INDEX] = ++CSS_ID)] = ++i;
          }
          element = element.nextSibling;
        }
        indexes.length = i;
        indexesByNodeType[id] = indexes;
      }
      return indexesByNodeType[id];
    },

  getIndexesByNodeName =
    function(element, name) {
      var i = 0, indexes,
        id = element[CSS_INDEX] || (element[CSS_INDEX] = ++CSS_ID);
      if (!indexesByNodeName[id] || !indexesByNodeName[id][name]) {
        indexes = { };
        element = element.firstChild;
        while (element) {
          if (element.nodeName.toUpperCase() == name) {
            indexes[element[CSS_INDEX] || (element[CSS_INDEX] = ++CSS_ID)] = ++i;
          }
          element = element.nextSibling;
        }
        indexes.length = i;
        indexesByNodeName[id] ||
          (indexesByNodeName[id] = { });
        indexesByNodeName[id][name] = indexes;
      }
      return indexesByNodeName[id];
    },

  getAttribute = !BUGGY_GET_ATTRIBUTE ?
    function(node, attribute) {
      return node.getAttribute(attribute) || '';
    } :
    function(node, attribute) {
      attribute = attribute.toLowerCase();
      if (ATTR_DEFAULT[attribute] in node) {
        return node[ATTR_DEFAULT[attribute]] || '';
      }
      return (
       
        ATTR_URIDATA[attribute] ? node.getAttribute(attribute, 2) || '' :
      
        ATTR_BOOLEAN[attribute] ? node.getAttribute(attribute) ? attribute : '' :
          ((node = node.getAttributeNode(attribute)) && node.value) || '');
    },


  hasAttribute = !BUGGY_HAS_ATTRIBUTE ?
    function(node, attribute) {
      return node.hasAttribute(attribute);
    } :
    function(node, attribute) {
      attribute = attribute.toLowerCase();

      attribute = attribute in ATTR_MAPPING ?
        ATTR_MAPPING[attribute] : attribute;
      if (ATTR_DEFAULT[attribute] in node) {
        return !!node[ATTR_DEFAULT[attribute]];
      }
     
      node = node.getAttributeNode(attribute);

      return !!(node && (node.specified || node.nodeValue));
    },

  isEmpty =
    function(node) {
      node = node.firstChild;
      while (node) {
        if (node.nodeType == 3 || node.nodeName > '@') return false;
        node = node.nextSibling;
      }
      return true;
    },

  isLink =
    function(element) {
      return hasAttribute(element,'href') && LINK_NODES[element.nodeName];
    },

  compile =
    function(selector, mode) {
      return compileGroup(selector, '', mode || false);
    },

  configure =
    function(options) {
      for (var i in options) {
        if (i == 'VERBOSITY') {
          VERBOSITY = !!options[i];
        } else if (i == 'SIMPLENOT') {
          SIMPLENOT = !!options[i];
          HTMLResolvers = { };
          XMLResolvers = { };
          HTMLMatchers = { };
          XMLMatchers = { };
          USE_QSAPI = false;
          reValidator = new RegExp(extendedValidator, 'g');
        } else if (i == 'SHORTCUTS') {
          SHORTCUTS = !!options[i];
        } else if (i == 'USE_QSAPI') {
          USE_QSAPI = !!options[i] && NATIVE_QSAPI;
          reValidator = new RegExp(standardValidator, 'g');
        }
      }
    },

  emit =
    function(message) {
      if (VERBOSITY) {
       
        if (typeof global.DOMException !== 'undefined') {
          var err = new Error();
          err.name = 'SYNTAX_ERR';
          err.message = '(Selectors) ' + message;
          err.code = 12;
          throw err;
        } else {
          throw new Error(12, 'SYNTAX_ERR: (Selectors) ' + message);
        }
      } else {
        var console = global.console;
        if (console && console.log) {
          console.log(message);
        } else {
          if (/exception/i.test(message)) {
            global.status = message;
            global.defaultStatus = message;
          } else {
            global.status += message;
          }
        }
      }
    },

  SIMPLENOT = true,
  SHORTCUTS = false,
  VERBOSITY = true,
  USE_QSAPI = NATIVE_QSAPI,

  ACCEPT_NODE = 'f&&f(c[k]);r[r.length]=c[k];continue main;',

  TO_UPPER_CASE = doc.createElement('nAv').nodeName == 'nAv' ?
    '.toUpperCase()' : '',

  compileGroup =
    function(selector, source, mode) {
      var i = -1, seen = { }, parts, token;
      if ((parts = selector.match(reSplitGroup))) {
    
        while ((token = parts[++i])) {
          token = token.replace(reTrimSpaces, '');
       
          if (!seen[token]) {
            seen[token] = true;
            source += i > 0 ? (mode ? 'e=c[k];': 'e=k;') : '';
            source += compileSelector(token, mode ? ACCEPT_NODE : 'f&&f(k);return true;');
          }
        }
      }
      if (mode) {
		
		return new Function('c,s,r,d,h,g,f',
          'var N,n,x=0,k=-1,e;main:while(e=c[++k]){' + source + '}return r;');
      } else {

        return new Function('e,s,r,d,h,g,f',
          'var N,n,x=0,k=e;' + source + 'return false;');
      }
    },

  compileSelector =
    function(selector, source) {

      var i, a, b, n, k, expr, match, result, status, test, type;

      k = 0;

      while (selector) {

        if ((match = selector.match(Patterns.universal))) {
          i = true;
        }

        else if ((match = selector.match(Patterns.id))) {

          source = 'if(' + (isXMLDocument ?
            's.getAttribute(e,"id")' :
            '(e.submit?s.getAttribute(e,"id"):e.id)') +
            '=="' + match[1] + '"' +
            '){' + source + '}';
        }

        else if ((match = selector.match(Patterns.tagName))) {

          source = 'if(e.nodeName' + (isXMLDocument ?
            '=="' + match[1] + '"' : TO_UPPER_CASE +
            '=="' + match[1].toUpperCase() + '"') +
            '){' + source + '}';
        }

        else if ((match = selector.match(Patterns.className))) {

          source = 'if((n=' + (isXMLDocument ?
            's.getAttribute(e,"class")' : 'e.className') +
            ')&&n.length&&(" "+' + (isQuirksMode ? 'n.toLowerCase()' : 'n') +
            '.replace(' + reWhiteSpace + '," ")+" ").indexOf(" ' +
            (isQuirksMode ? match[1].toLowerCase() : match[1]) + ' ")>-1' +
            '){' + source + '}';
        }

        else if ((match = selector.match(Patterns.attribute))) {
          if (match[3]) match[3] = match[3].replace(/^\x22|\x22$/g, '').replace(/^\x27|\x27$/g, '');

          expr = match[1].split(':');
          expr = expr.length == 2 ? expr[1] : expr[0] + '';

          if (match[2] && !Operators[match[2]]) {
            emit('Unsupported operator in attribute selectors "' + selector + '"');
            return '';
          }

          if (match[2] && match[3] && (type = Operators[match[2]])) {
            HTML_TABLE['class'] = isQuirksMode ? 1 : 0;
            match[3] = match[3].replace(/\\([0-9a-f]{2,2})/, '\\x$1');
            test = (isXMLDocument ? XHTML_TABLE : HTML_TABLE)[expr.toLowerCase()];
            type = type.replace(/\%m/g, test ? match[3].toLowerCase() : match[3]);
          } else {
            test = false;
            type = match[2] == '=' ? 'n==""' : 'false';
          }

          expr = 'n=s.' + (match[2] ? 'get' : 'has') +
            'Attribute(e,"' + match[1] + '")' +
            (test ? '.toLowerCase();' : ';');

          source = expr + 'if(' + (match[2] ? type : 'n') + '){' + source + '}';
        }

        else if ((match = selector.match(Patterns.adjacent))) {
          k++;
          source = NATIVE_TRAVERSAL_API ?
            'var N' + k + '=e;if(e&&(e=e.previousElementSibling)){' + source + '}e=N' + k + ';' :
            'var N' + k + '=e;while(e&&(e=e.previousSibling)){if(e.nodeName>"@"){' + source + 'break;}}e=N' + k + ';';
        }

        else if ((match = selector.match(Patterns.relative))) {
          k++;
          source = NATIVE_TRAVERSAL_API ?
            ('var N' + k + '=e;e=e.parentNode.firstElementChild;' +
            'while(e&&e!=N' + k + '){' + source + 'e=e.nextElementSibling;}e=N' + k + ';') :
            ('var N' + k + '=e;e=e.parentNode.firstChild;' +
            'while(e&&e!=N' + k + '){if(e.nodeName>"@"){' + source + '}e=e.nextSibling;}e=N' + k + ';');
        }

        else if ((match = selector.match(Patterns.children))) {
          k++;
          source = 'var N' + k + '=e;if(e&&e!==h&&e!==g&&(e=e.parentNode)){' + source + '}e=N' + k + ';';
        }

        else if ((match = selector.match(Patterns.ancestor))) {
          k++;
          source = 'var N' + k + '=e;while(e&&e!==h&&e!==g&&(e=e.parentNode)){' + source + '}e=N' + k + ';';
        }

        else if ((match = selector.match(Patterns.spseudos)) &&
          CSS3PseudoClasses.Structural[selector.match(reClassValue)[0]]) {

          switch (match[1]) {
            case 'root':
    
              source = 'if(e===h){' + source + '}';
              break;

            case 'empty':

              source = 'if(s.isEmpty(e)){' + source + '}';
              break;

            default:
              if (match[1] && match[5]) {
                if (match[5] == 'n') {
                  source = 'if(e!==h){' + source + '}';
                  break;
                } else if (match[5] == 'even') {
                  a = 2;
                  b = 0;
                } else if (match[5] == 'odd') {
                  a = 2;
                  b = 1;
                } else {
      
                  b = ((n = match[5].match(/(-?\d+)$/)) ? parseInt(n[1], 10) : 0);
                  a = ((n = match[5].match(/(-?\d*)n/)) ? parseInt(n[1], 10) : 0);
                  if (n && n[1] == '-') a = -1;
                }

                type = match[4] ? 'n[N]' : 'n';
                expr = match[2] == 'last' && b >= 0 ? type + '.length-(' + (b - 1) + ')' : b;

                type = type + '[e.' + CSS_INDEX + ']';

                test =  b < 1 && a > 1 ? '(' + type + '-(' + expr + '))%' + a + '==0' : a > +1 ?
                  (match[2] == 'last') ? '(' + type + '-(' + expr + '))%' + a + '==0' :
                  type + '>=' + expr + '&&(' + type + '-(' + expr + '))%' + a + '==0' : a < -1 ?
                  (match[2] == 'last') ? '(' + type + '-(' + expr + '))%' + a + '==0' :
                  type + '<=' + expr + '&&(' + type + '-(' + expr + '))%' + a + '==0' : a=== 0 ?
                  type + '==' + expr :
                  (match[2] == 'last') ?
                    a == -1 ? type + '>=' + expr : type + '<=' + expr :
                    a == -1 ? type + '<=' + expr : type + '>=' + expr;

                source =
                  (match[4] ? 'N=e.nodeName' + TO_UPPER_CASE + ';' : '') +
                  'if(e!==h){' +
                    'n=s.getIndexesBy' + (match[4] ? 'NodeName' : 'NodeType') +
                    '(e.parentNode' + (match[4] ? ',N' : '') + ');' +
                    'if(' + test + '){' + source + '}' +
                  '}';

              } else {

                a = match[2] == 'first' ? 'previous' : 'next';
                n = match[2] == 'only' ? 'previous' : 'next';
                b = match[2] == 'first' || match[2] == 'last';

                type = match[4] ? '&&n.nodeName!=e.nodeName' : '&&n.nodeName<"@"';

                source = 'if(e!==h){' +
                  ( 'n=e;while((n=n.' + a + 'Sibling)' + type + ');if(!n){' + (b ? source :
                    'n=e;while((n=n.' + n + 'Sibling)' + type + ');if(!n){' + source + '}') + '}' ) + '}';
              }
              break;
          }
        }

        else if ((match = selector.match(Patterns.dpseudos)) &&
          CSS3PseudoClasses.Others[selector.match(reClassValue)[0]]) {

          switch (match[1]) {
       
            case 'not':

              expr = match[3].replace(reTrimSpaces, '');

              if (SIMPLENOT && !reSimpleNot.test(expr)) {
            
                emit('Negation pseudo-class only accepts simple selectors "' + selector + '"');
                return '';
              } else {
                if ('compatMode' in doc) {
                  source = 'N=' + compileGroup(expr, '', false) + '(e,s,r,d,h,g);if(!N){' + source + '}';
                } else {
                  source = 'if(!s.match(e, "' + expr.replace(/\x22/g, '\\"') + '",r)){' + source +'}';
                }
              }
              break;

       
            case 'checked':
           
              source = 'if(((typeof e.form!=="undefined"&&(/radio|checkbox/i).test(e.type))||/option/i.test(e.nodeName))&&(e.checked||e.selected)){' + source + '}';
              break;
            case 'enabled':
            
              source = 'if(((typeof e.form!=="undefined"&&!(/hidden/i).test(e.type))||s.isLink(e))&&!e.disabled){' + source + '}';
              break;
            case 'disabled':
         
              source = 'if(((typeof e.form!=="undefined"&&!(/hidden/i).test(e.type))||s.isLink(e))&&e.disabled){' + source + '}';
              break;

            case 'lang':
              test = '';
              if (match[3]) test = match[3].substr(0, 2) + '-';
              source = 'do{(n=e.lang||"").toLowerCase();' +
                'if((n==""&&h.lang=="' + match[3].toLowerCase() + '")||' +
                '(n&&(n=="' + match[3].toLowerCase() +
                '"||n.substr(0,3)=="' + test.toLowerCase() + '")))' +
                '{' + source + 'break;}}while((e=e.parentNode)&&e!==g);';
              break;

           
            case 'target':
              n = doc.location ? doc.location.hash : '';
              if (n) {
                source = 'if(e.id=="' + n.slice(1) + '"){' + source + '}';
              }
              break;

            case 'link':
              source = 'if(s.isLink(e)&&!e.visited){' + source + '}';
              break;
            case 'visited':
              source = 'if(s.isLink(e)&&e.visited){' + source + '}';
              break;

            case 'active':
              if (isXMLDocument) break;
              source = 'if(e===d.activeElement){' + source + '}';
              break;
            case 'hover':
              if (isXMLDocument) break;
              source = 'if(e===d.hoverElement){' + source + '}';
              break;
            case 'focus':
              if (isXMLDocument) break;
              source = NATIVE_FOCUS ?
                'if(e===d.activeElement&&d.hasFocus()&&(e.type||e.href)){' + source + '}' :
                'if(e===d.activeElement&&(e.type||e.href)){' + source + '}';
              break;

            default:
              break;
          }
        } else {

          expr = false;
          status = true;

          for (expr in Selectors) {
            if ((match = selector.match(Selectors[expr].Expression))) {
              result = Selectors[expr].Callback(match, source);
              source = result.source;
              status = result.status;
              if (status) break;
            }
          }

          if (!status) {

            emit('Unknown pseudo-class selector "' + selector + '"');
            return '';
          }

          if (!expr) {
  
            emit('Unknown token in selector "' + selector + '"');
            return '';
          }

        }

        if (!match) {
          emit('Invalid syntax in selector "' + selector + '"');
          return '';
        }

        selector = match && match[match.length - 1];
      }

      return source;
    },

  match =
    function(element, selector, from, callback) {

      var changed, parts, resolver;

      if (!element || element.nodeName < 'A' || !selector) return false;

      if (from && from.nodeType == 1) {
        if (!contains(from, element)) return false;
      }

      selector = selector.replace(reTrimSpaces, '');

      from || (from = doc);

   
      if (lastMatchContext != from) {
   
        lastMatchContext = from;
     
        root = (doc = element.ownerDocument || element).documentElement;
        isQuirksMode = isQuirks(doc);
        isXMLDocument = isXML(doc);
      }

      if (changed = lastMatcher != selector) {
    
        if ((parts = selector.match(reValidator)) && parts[0] == selector) {
   
          lastMatcher = selector;
          isSingleMatch = (parts = selector.match(reSplitGroup)).length < 2;
        } else {
          emit('The string "' + selector + '", is not a valid CSS selector');
          return false;
        }
      }


      if (isXMLDocument && !(resolver = XMLMatchers[selector])) {
        resolver = XMLMatchers[selector] = isSingleMatch ?
          new Function('e,s,r,d,h,g,f', 'var N,n,x=0,k=e;' +
            compileSelector(selector, 'f&&f(k);return true;') +
            'return false;') : compileGroup(selector, '', false);
      } else if (!(resolver = HTMLMatchers[selector])) {
        resolver = HTMLMatchers[selector] = isSingleMatch ?
          new Function('e,s,r,d,h,g,f', 'var N,n,x=0,k=e;' +
            compileSelector(selector, 'f&&f(k);return true;') +
            'return false;') : compileGroup(selector, '', false);
      }

      indexesByNodeType = { };
      indexesByNodeName = { };

      return resolver(element, snap, [ ], doc, root, from || doc, callback);
    },

  select =
    function(selector, from, callback) {

      var i, changed, element, elements, parts, resolver, token;

      if (arguments.length === 0) {
        emit('Missing required selector parameters');
        return [ ];
      } else if (selector === '') {
        emit('Empty selector string');
        return [ ];
      } else if (typeof selector != 'string') {
       
        return [ ];
      }

      selector = selector.replace(reTrimSpaces, '');

   
      from || (from = doc);

      if (SHORTCUTS) {
 
        if (reLeftContext.test(selector)) {
          selector = from.nodeType == 9 ? '* ' + selector :
            from.id ? '#' + from.id + ' ' + selector :
              selector;
        }
    
        if (reRightContext.test(selector)) {
          selector = selector + ' *';
        }
      }

      if (RE_SIMPLE_SELECTOR.test(selector)) {
        switch (selector.charAt(0)) {
          case '#':
            if ((element = byId(selector.slice(1), from))) {
              callback && callback(element);
              return [ element ];
            }
            return [ ];
          case '.':
            elements = byClass(selector.slice(1), from);
            break;
          default:
            elements = byTag(selector, from);
            break;
        }
        return callback ?
          concatCall([ ], elements, callback) : elements;
      }

      if (USE_QSAPI && !RE_BUGGY_QSAPI.test(selector) &&
        QSA_NODE_TYPES[from.nodeType]) {
   
        lastError = null;

        try {
          elements = from.querySelectorAll(selector);
        } catch(e) {
       
          lastError = e;
          if (selector === '') throw e;
        }

        if (elements) {
          switch (elements.length) {
            case 0:
              return [ ];
            case 1:
              element = elements.item(0);
              callback && callback(element);
              return [ element ];
            default:
              return callback ?
                concatCall([ ], elements, callback) :
                NATIVE_SLICE_PROTO ?
                  slice.call(elements) :
                  concatList([ ], elements);
          }
        }
      }

      if (lastSelectContext != from) {

		lastSelectContext = from;
        
        root = (doc = from.ownerDocument || from).documentElement;
        isQuirksMode = isQuirks(doc);
        isXMLDocument = isXML(doc);
      }

      if (changed = lastSelector != selector) {
   
        if ((parts = selector.match(reValidator)) && parts[0] == selector) {
    
          lastSelector = selector;
          isSingleSelect = (parts = selector.match(reSplitGroup)).length < 2;
        } else {
          emit('The string "' + selector + '", is not a valid CSS selector');
          return [ ];
        }
      }

      if (isSingleSelect && from.nodeType != 11) {

        if (changed) {

          parts = selector.match(reSplitToken);
          token = parts[parts.length - 1];

          lastSlice = token.split(':not')[0];
        }

        if ((parts = lastSlice.match(Optimize.ID)) && (token = parts[1])) {
          if ((element = byId(token, from))) {
            if (match(element, selector)) {
              callback && callback(element);
              return [ element ];
            }
          }
          return [ ];
        }

        else if ((parts = selector.match(Optimize.ID)) && (token = parts[1])) {
          if ((element = byId(token, doc))) {
            if (/[>+~]/.test(selector)) {
              from = element.parentNode;
            } else {
              selector = selector.replace('#' + token, '*');
              from = element;
            }
          } else return [ ];
        }

        if (NATIVE_GEBCN) {

          if ((parts = lastSlice.match(Optimize.CLASS)) && (token = parts[1])) {
            if ((elements = byClass(token, from)).length === 0) { return [ ]; }
          } else if ((parts = lastSlice.match(Optimize.TAG)) && (token = parts[1])) {
            if ((elements = byTag(token, from)).length === 0) { return [ ]; }
          }
        } else {

          if ((parts = lastSlice.match(Optimize.TAG)) && (token = parts[1])) {
            if ((elements = byTag(token, from)).length === 0) { return [ ]; }
          } else if ((parts = lastSlice.match(Optimize.CLASS)) && (token = parts[1])) {
            if ((elements = byClass(token, from)).length === 0) { return [ ]; }
          }
        }

      }

      if (!elements) {
        elements = byTag('*', from);
      }

      if (isXMLDocument && !(resolver = XMLResolvers[selector])) {
        resolver = XMLResolvers[selector] = isSingleSelect ?
          new Function('c,s,r,d,h,g,f',
            'var N,n,x=0,k=-1,e;main:while(e=c[++k]){' +
            compileSelector(selector, ACCEPT_NODE) + '}return r;') :
          compileGroup(selector, '', true);
      } else if (!(resolver = HTMLResolvers[selector])) {
        resolver = HTMLResolvers[selector] = isSingleSelect ?
          new Function('c,s,r,d,h,g,f',
            'var N,n,x=0,k=-1,e;main:while(e=c[++k]){' +
            compileSelector(selector, ACCEPT_NODE) + '}return r;') :
          compileGroup(selector, '', true);
      }

      indexesByNodeType = { };
      indexesByNodeName = { };

      return resolver(elements, snap, [ ], doc, root, from, callback);
    },

  CSS_ID = 1,
  CSS_INDEX = 'uniqueID' in root ? 'uniqueID' : 'CSS_ID',

	indexesByNodeType = { },
  indexesByNodeName = { },

  HTMLResolvers = { },
  XMLResolvers = { },

  HTMLMatchers = { },
  XMLMatchers = { },

  snap = {

    getIndexesByNodeType: getIndexesByNodeType,
    getIndexesByNodeName: getIndexesByNodeName,

    getAttribute: getAttribute,
    hasAttribute: hasAttribute,

    byClass: byClass,
    byName: byName,
    byTag: byTag,
    byId: byId,

    isEmpty: isEmpty,
    isLink: isLink,

    select: select,
    match: match
  };

  global.NW || (global.NW = { });

  NW.Dom = {

    byId: byId,

    byTag: byTag,

    byName: byName,

    byClass: byClass,

    getAttribute: getAttribute,

    hasAttribute: hasAttribute,

    match: match,

    select: select,

    compile: compile,

    contains: contains,

    configure: configure,

    registerOperator:
      function(symbol, resolver) {
        if (!Operators[symbol]) {
          Operators[symbol] = resolver;
        }
      },

    registerSelector:
      function(name, rexp, func) {
        if (!Selectors[name]) {
          Selectors[name] = { };
          Selectors[name].Expression = rexp;
          Selectors[name].Callback = func;
        }
      }
  };

})(this);


(function(engine, selector) {
  var engSelect = engine.select, extend = Element.extend;

  function select(selector, context) {
    return engSelect(selector, context, extend);
  }

  engine.registerOperator('!=', 'n!="%m"');

  selector.engine = engine;
  selector.select = extend === Prototype.K ? engSelect : select;
  selector.match = engine.match;
  selector.configure = engine.configure;
})(NW.Dom, Prototype.Selector);

window.NW = Prototype._original_property;
delete Prototype._original_property;

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

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

    if (options.hash) {
      initial = {};
      accumulator = function(result, key, value) {
        if (key in result) {
          if (!Object.isArray(result[key])) result[key] = [result[key]];
          result[key].push(value);
        } else result[key] = value;
        return result;
      };
    } else {
      initial = '';
      accumulator = function(result, key, value) {
        return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + encodeURIComponent(value);
      }
    }

    return elements.inject(initial, 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)))) {
          result = accumulator(result, key, value);
        }
      }
      return result;
    });
  }
};

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);
    var element = form.findFirstElement();
    if (element) element.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 = (function() {
  function input(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return inputSelector(element, value);
      default:
        return valueSelector(element, value);
    }
  }

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

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

  function select(element, value) {
    if (Object.isUndefined(value))
      return (element.type === 'select-one' ? selectOne : selectMany)(element);

    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);
    }
  }

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

  function selectMany(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(optionValue(opt));
    }
    return values;
  }

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

  return {
    input:         input,
    inputSelector: inputSelector,
    textarea:      valueSelector,
    select:        select,
    selectOne:     selectOne,
    selectMany:    selectMany,
    optionValue:   optionValue,
    button:        valueSelector
  };
})();

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


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 isIELegacyEvent = function(event) { return false; };

  if (window.attachEvent) {
    if (window.addEventListener) {
      isIELegacyEvent = function(event) {
        return !(event instanceof window.Event);
      };
    } else {
      isIELegacyEvent = function(event) { return true; };
    }
  }

  var _isButton;

  function _isButtonForDOMEvents(event, code) {
    return event.which ? (event.which === code + 1) : (event.button === code);
  }

  var legacyButtonMap = { 0: 1, 1: 4, 2: 2 };
  function _isButtonForLegacyEvents(event, code) {
    return event.button === legacyButtonMap[code];
  }

  function _isButtonForWebKit(event, code) {
    switch (code) {
      case 0: return event.which == 1 && !event.metaKey;
      case 1: return event.which == 2 || (event.which == 1 && event.metaKey);
      case 2: return event.which == 3;
      default: return false;
    }
  }

  if (window.attachEvent) {
    if (!window.addEventListener) {
      _isButton = _isButtonForLegacyEvents;
    } else {
      _isButton = function(event, code) {
        return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
         _isButtonForDOMEvents(event, code);
      }
    }
  } else if (Prototype.Browser.WebKit) {
    _isButton = _isButtonForWebKit;
  } else {
    _isButton = _isButtonForDOMEvents;
  }

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

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

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

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

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

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

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

    return Element.extend(node);
  }

  function findElement(event, expression) {
    var element = Event.element(event);

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

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

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

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

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

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


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

    event.stopped = true;
  }


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

    element:     element,
    findElement: findElement,

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

    stop: stop
  };

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

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

    var additionalMethods = {
      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 (!isIELegacyEvent(event)) return event;

      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
      });

      Object.extend(event, methods);
      Object.extend(event, additionalMethods);

      return event;
    };
  } else {
    Event.extend = Prototype.K;
  }

  if (window.addEventListener) {
    Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
    Object.extend(Event.prototype, methods);
  }

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

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

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

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

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

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

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

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

            if (parent === element) return;

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

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

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

  var CACHE = [];

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

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


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

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

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

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

    if (!responder) return element;

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

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

    return element;
  }

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

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

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

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

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

    var i = responders.length, responder;
    while (i--) {
      if (responders[i].handler === handler) {
        responder = responders[i];
        break;
      }
    }
    if (!responder) return element;

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

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

    return element;
  }

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

    if (Object.isUndefined(bubble))
      bubble = true;

    if (element == document && document.createEvent && !element.dispatchEvent)
      element = document.documentElement;

    var event;
    if (document.createEvent) {
      event = document.createEvent('HTMLEvents');
      event.initEvent('dataavailable', bubble, true);
    } else {
      event = document.createEventObject();
      event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';
    }

    event.eventName = eventName;
    event.memo = memo || { };

    if (document.createEvent)
      element.dispatchEvent(event);
    else
      element.fireEvent(event.eventType, event);

    return Event.extend(event);
  }

  Event.Handler = Class.create({
    initialize: function(element, eventName, selector, callback) {
      this.element   = $(element);
      this.eventName = eventName;
      this.selector  = selector;
      this.callback  = callback;
      this.handler   = this.handleEvent.bind(this);
    },

    start: function() {
      Event.observe(this.element, this.eventName, this.handler);
      return this;
    },

    stop: function() {
      Event.stopObserving(this.element, this.eventName, this.handler);
      return this;
    },

    handleEvent: function(event) {
      var element = Event.findElement(event, this.selector);
      if (element) this.callback.call(this.element, event, element);
    }
  });

  function on(element, eventName, selector, callback) {
    element = $(element);
    if (Object.isFunction(selector) && Object.isUndefined(callback)) {
      callback = selector, selector = null;
    }

    return new Event.Handler(element, eventName, selector, callback).start();
  }

  Object.extend(Event, Event.Methods);

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

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving,

    on:            on
  });

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

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    on:            on.methodize(),

    loaded:        false
  });

  if (window.Event) Object.extend(window.Event, Event);
  else window.Event = Event;
})();

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearTimeout(timer);
    document.loaded = true;
    document.fire('dom:loaded');
  }

  function checkReadyState() {
    if (document.readyState === 'complete') {
      document.stopObserving('readystatechange', checkReadyState);
      fireContentLoadedEvent();
    }
  }

  function pollDoScroll() {
    try { document.documentElement.doScroll('left'); }
    catch(e) {
      timer = pollDoScroll.defer();
      return;
    }
    fireContentLoadedEvent();
  }

  if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
  } else {
    document.observe('readystatechange', checkReadyState);
    if (window == top)
      timer = pollDoScroll.defer();
  }

  Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

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

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

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

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

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

(function() {
  window.Selector = Class.create({
    initialize: function(expression) {
      this.expression = expression.strip();
    },

    findElements: function(rootElement) {
      return Prototype.Selector.select(this.expression, rootElement);
    },

    match: function(element) {
      return Prototype.Selector.match(element, this.expression);
    },

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

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

  Object.extend(Selector, {
    matchElements: function(elements, expression) {
      var match = Prototype.Selector.match,
          results = [];

      for (var i = 0, length = elements.length; i < length; i++) {
        var element = elements[i];
        if (match(element, expression)) {
          results.push(Element.extend(element));
        }
      }
      return results;
    },

    findElement: function(elements, expression, index) {
      index = index || 0;
      var matchIndex = 0, element;
      for (var i = 0, length = elements.length; i < length; i++) {
        element = elements[i];
        if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
          return Element.extend(element);
        }
      }
    },

    findChildElements: function(element, expressions) {
      var selector = expressions.toArray().join(', ');
      return Prototype.Selector.select(selector, element || document);
    }
  });
})();

/*!
 *  script.aculo.us version 2.0.0_b1
 *  (c) 2005-2010 Thomas Fuchs
 *
 *  script.aculo.us is freely distributable under the terms of an MIT-style license.
 *----------------------------------------------------------------------------------*/
 
var S2 = {
  Version: '2.0.0_b1',
  Extensions: {}
};

Function.prototype.optionize = function(){
  var self = this, argumentNames = self.argumentNames(), optionIndex = this.length - 1;

  var method = function() {
    var args = $A(arguments);

    var options = (typeof args.last() === 'object') ? args.pop() : {};
    var prefilledArgs = [];
    if (optionIndex > 0) {
      prefilledArgs = ((args.length > 0 ? args : [null]).inGroupsOf(
       optionIndex).flatten()).concat(options);
    }

    return self.apply(this, prefilledArgs);
  };
  method.argumentNames = function() { return argumentNames; };
  return method;
};

Function.ABSTRACT = function() {
  throw "Abstract method. Implement in subclass.";
};

Object.extend(Number.prototype, {
  constrain: function(n1, n2) {
    var min = (n1 < n2) ? n1 : n2;
    var max = (n1 < n2) ? n2 : n1;

    var num = Number(this);

    if (num < min) num = min;
    if (num > max) num = max;

    return num;
  },

  nearer: function(n1, n2) {
    var num = Number(this);

    var diff1 = Math.abs(num - n1);
    var diff2 = Math.abs(num - n2);

    return (diff1 < diff2) ? n1 : n2;
  },

  tween: function(target, position) {
    return this + (target-this) * position;
  }
});


Object.propertize = function(property, object){
  return Object.isString(property) ? object[property] : property;
};

S2.CSS = {
  PROPERTY_MAP: {
    backgroundColor: 'color',
    borderBottomColor: 'color',
    borderBottomWidth: 'length',
    borderLeftColor: 'color',
    borderLeftWidth: 'length',
    borderRightColor: 'color',
    borderRightWidth: 'length',
    borderSpacing: 'length',
    borderTopColor: 'color',
    borderTopWidth: 'length',
    bottom: 'length',
    color: 'color',
    fontSize: 'length',
    fontWeight: 'integer',
    height: 'length',
    left: 'length',
    letterSpacing: 'length',
    lineHeight: 'length',
    marginBottom: 'length',
    marginLeft: 'length',
    marginRight: 'length',
    marginTop: 'length',
    maxHeight: 'length',
    maxWidth: 'length',
    minHeight: 'length',
    minWidth: 'length',
    opacity: 'number',
    outlineColor: 'color',
    outlineOffset: 'length',
    outlineWidth: 'length',
    paddingBottom: 'length',
    paddingLeft: 'length',
    paddingRight: 'length',
    paddingTop: 'length',
    right: 'length',
    textIndent: 'length',
    top: 'length',
    width: 'length',
    wordSpacing: 'length',
    zIndex: 'integer',
    zoom: 'number'
  },

  VENDOR: {
    PREFIX: null,

    LOOKUP_PREFIXES: ['webkit', 'Moz', 'O'],
    LOOKUP_PROPERTIES: $w('BorderRadius BoxShadow Transform Transition ' +
     'TransitionDuration TransitionTimingFunction TransitionProperty ' +
     'TransitionDelay ' +
     'BorderTopLeftRadius BorderTopRightRadius BorderBottomLeftRadius ' +
     'BorderBottomRightRadius'
    ),
    LOOKUP_EDGE_CASES: {
      'BorderTopLeftRadius': 'BorderRadiusTopleft',
      'BorderTopRightRadius': 'BorderRadiusTopright',
      'BorderBottomLeftRadius': 'BorderRadiusBottomleft',
      'BorderBottomRightRadius': 'BorderRadiusBottomright'
    },

    PROPERTY_MAP: {}
  },

  LENGTH: /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/,

  NUMBER: /([\+-]*\d+\.?\d*)/,

  __parseStyleElement: document.createElement('div'),

  parseStyle: function(styleString) {
    S2.CSS.__parseStyleElement.innerHTML = '<div style="' + styleString + '"></div>';
    var style = S2.CSS.__parseStyleElement.childNodes[0].style, styleRules = {};

    S2.CSS.NUMERIC_PROPERTIES.each( function(property){
      if (style[property]) styleRules[property] = style[property];
    });

    S2.CSS.COLOR_PROPERTIES.each( function(property){
      if (style[property]) styleRules[property] = S2.CSS.colorFromString(style[property]);
    });

    if (Prototype.Browser.IE && styleString.include('opacity'))
      styleRules.opacity = styleString.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];

    return styleRules;
  },

  parse: function(styleString) {
    return S2.CSS.parseStyle(styleString);
  },

  normalize: function(element, style) {
    if (Object.isHash(style)) style = style.toObject();
    if (typeof style === 'string') style = S2.CSS.parseStyle(style);

    var result = {}, current;

    for (var property in style) {
      current = element.getStyle(property);
      if (style[property] !== current) {
        result[property] = style[property];
      }
    }

    return result;
  },

  serialize: function(object) {
    if (Object.isHash(object)) object = object.toObject();
    var output = "", value;
    for (var property in object) {
      value = object[property];
      property = this.vendorizeProperty(property);
      output += (property + ": " + value + ';');
    }
    return output;
  },

  vendorizeProperty: function(property) {
    property = property.underscore().dasherize();

    if (property in S2.CSS.VENDOR.PROPERTY_MAP) {
      property = S2.CSS.VENDOR.PROPERTY_MAP[property];
    }

    return property;
  },

  normalizeColor: function(color) {
    if (!color || color == 'rgba(0, 0, 0, 0)' || color == 'transparent') color = '#ffffff';
    color = S2.CSS.colorFromString(color);
    return [
      parseInt(color.slice(1,3),16), parseInt(color.slice(3,5),16), parseInt(color.slice(5,7),16)
    ];
  },

  colorFromString: function(color) {
    var value = '#', cols, i;
    if (color.slice(0,4) == 'rgb(') {
      cols = color.slice(4,color.length-1).split(',');
      i=3; while(i--) value += parseInt(cols[2-i]).toColorPart();
    } else if (color.slice(0,1) == '#') {
        if (color.length==4) for(i=1;i<4;i++) value += (color.charAt(i) + color.charAt(i)).toLowerCase();
        if (color.length==7) value = color.toLowerCase();
    } else { value = color; }
    return (value.length==7 ? value : (arguments[1] || value));
  },

  interpolateColor: function(from, to, position){
    from = S2.CSS.normalizeColor(from);
    to = S2.CSS.normalizeColor(to);

    return '#' + [0,1,2].map(function(index){
      return Math.max(Math.min(from[index].tween(to[index], position).round(), 255), 0).toColorPart();
    }).join('');
  },

  interpolateNumber: function(from, to, position){
    return 1*((from||0).tween(to, position).toFixed(3));
  },

  interpolateLength: function(from, to, position){
    if (!from || parseFloat(from) === 0) {
      from = '0' + to.gsub(S2.CSS.NUMBER,'');
    }
    to.scan(S2.CSS.NUMBER, function(match){ to = 1*(match[1]); });
    return from.gsub(S2.CSS.NUMBER, function(match){
      return (1*(parseFloat(match[1]).tween(to, position).toFixed(3))).toString();
    });
  },

  interpolateInteger: function(from, to, position){
    return parseInt(from).tween(to, position).round();
  },

  interpolate: function(property, from, to, position){
    return S2.CSS['interpolate'+S2.CSS.PROPERTY_MAP[property.camelize()].capitalize()](from, to, position);
  },

  ElementMethods: {
    getStyles: function(element) {
      var css = document.defaultView.getComputedStyle($(element), null);
      return S2.CSS.PROPERTIES.inject({ }, function(styles, property) {
        styles[property] = css[property];
        return styles;
      });
    }
  }
};

S2.CSS.PROPERTIES = [];
for (var property in S2.CSS.PROPERTY_MAP) S2.CSS.PROPERTIES.push(property);

S2.CSS.NUMERIC_PROPERTIES = S2.CSS.PROPERTIES.findAll(function(property){ return !property.endsWith('olor') });
S2.CSS.COLOR_PROPERTIES   = S2.CSS.PROPERTIES.findAll(function(property){ return property.endsWith('olor') });

if (!(document.defaultView && document.defaultView.getComputedStyle)) {
  S2.CSS.ElementMethods.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = S2.CSS.PROPERTIES.inject({ }, function(hash, property) {
      hash[property] = css[property];
      return hash;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
};

Element.addMethods(S2.CSS.ElementMethods);

(function() {
  var div = document.createElement('div');
  var style = div.style, prefix = null;
  var edgeCases = S2.CSS.VENDOR.LOOKUP_EDGE_CASES;
  var uncamelize = function(prop, prefix) {
    if (prefix) {
      prop = '-' + prefix.toLowerCase() + '-' + uncamelize(prop);
    }
    return prop.underscore().dasherize();
  }

  S2.CSS.VENDOR.LOOKUP_PROPERTIES.each(function(prop) {
    if (!prefix) { // We attempt to detect a prefix
      prefix = S2.CSS.VENDOR.LOOKUP_PREFIXES.detect( function(p) {
        return !Object.isUndefined(style[p + prop]);
      });
    }
    if (prefix) { // If we detected a prefix
      if ((prefix + prop) in style) {
        S2.CSS.VENDOR.PROPERTY_MAP[uncamelize(prop)] = uncamelize(prop, prefix);
      } else if (prop in edgeCases && (prefix + edgeCases[prop]) in style) {
        S2.CSS.VENDOR.PROPERTY_MAP[uncamelize(prop)] = uncamelize(edgeCases[prop], prefix);
      }
    }
  });

  S2.CSS.VENDOR.PREFIX = prefix;

  div = null;
})();

S2.FX = (function(){
  var queues = [], globalQueue,
    heartbeat, activeEffects = 0;

  function beatOnDemand(dir) {
    activeEffects += dir;
    if (activeEffects > 0) heartbeat.start();
    else heartbeat.stop();
  }

  function renderQueues() {
    var timestamp = heartbeat.getTimestamp();
    for (var i = 0, queue; queue = queues[i]; i++) {
      queue.render(timestamp);
    }
  }

  function initialize(initialHeartbeat){
    if (globalQueue) return;
    queues.push(globalQueue = new S2.FX.Queue());
    S2.FX.DefaultOptions.queue = globalQueue;
    heartbeat = initialHeartbeat || new S2.FX.Heartbeat();

    document
      .observe('effect:heartbeat', renderQueues)
      .observe('effect:queued',    beatOnDemand.curry(1))
      .observe('effect:dequeued',  beatOnDemand.curry(-1));
  }

  function formatTimestamp(timestamp) {
    if (!timestamp) timestamp = (new Date()).valueOf();
    var d = new Date(timestamp);
    return d.getSeconds() + '.' + d.getMilliseconds() + 's';
  }

  return {
    initialize:   initialize,
    getQueues:    function() { return queues; },
    addQueue:     function(queue) { queues.push(queue); },
    getHeartbeat: function() { return heartbeat; },
    setHeartbeat: function(newHeartbeat) { heartbeat = newHeartbeat; },
    formatTimestamp: formatTimestamp
  }
})();

Object.extend(S2.FX, {
  DefaultOptions: {
    transition: 'sinusoidal',
    position:   'parallel',
    fps:        60,
    duration:   .2
  },

  elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },

  parseOptions: function(options) {
    if (Object.isNumber(options))
      options = { duration: options };
    else if (Object.isFunction(options))
      options = { after: options };
    else if (Object.isString(options))
      options = { duration: options == 'slow' ? 1 : options == 'fast' ? .1 : .2 };

    return options || {};
  },

  ready: function(element) {
    if (!element) return;
    var table = this._ready;
    var uid = element._prototypeUID;
    if (!uid) return true;

    bool = table[uid];
    return Object.isUndefined(bool) ? true : bool;
  },

  setReady: function(element, bool) {
    if (!element) return;
    var table = this._ready, uid = element._prototypeUID;
    if (!uid) {
      element.getStorage();
      uid = element._prototypeUID;
    }

    table[uid] = bool;
  },

  _ready: {}
});

S2.FX.Base = Class.create({
  initialize: function(options) {
    S2.FX.initialize();
    this.updateWithoutWrappers = this.update;

    if(options && options.queue && !S2.FX.getQueues().include(options.queue))
      S2.FX.addQueue(options.queue);

    this.setOptions(options);
    this.duration = this.options.duration*1000;
    this.state = 'idle';

    ['after','before'].each(function(method) {
      this[method] = function(method) {
        method(this);
        return this;
      }
    }, this);
  },

  setOptions: function(options) {
    options = S2.FX.parseOptions(options);

    this.options = Object.extend(this.options || Object.extend({}, S2.FX.DefaultOptions), options);

    if (options.tween) this.options.transition = options.tween;

    if (this.options.beforeUpdate || this.options.afterUpdate) {
      this.update = this.updateWithoutWrappers.wrap( function(proceed,position){
        if (this.options.beforeUpdate) this.options.beforeUpdate(this, position);
        proceed(position);
        if (this.options.afterUpdate) this.options.afterUpdate(this, position);
      }.bind(this));
    }

    if (this.options.transition === false)
      this.options.transition = S2.FX.Transitions.linear;

    this.options.transition = Object.propertize(this.options.transition, S2.FX.Transitions);
  },

  play: function(options) {
    this.setOptions(options);
    this.frameCount = 0;
    this.state = 'idle';
    this.options.queue.add(this);
    this.maxFrames = this.options.fps * this.duration / 1000;
    return this;
  },

  render: function(timestamp) {
    if (this.options.debug) {
    }
    if (timestamp >= this.startsAt) {
      if (this.state == 'idle' && S2.FX.ready(this.element)) {
        this.debug('starting the effect at ' + S2.FX.formatTimestamp(timestamp));
        this.endsAt = this.startsAt + this.duration;
        this.start();
        this.frameCount++;
        return this;
      }

      if (timestamp >= this.endsAt && this.state !== 'finished') {
        this.debug('stopping the effect at ' + S2.FX.formatTimestamp(timestamp));
        this.finish();
        return this;
      }

      if (this.state === 'running') {
        var position = 1 - (this.endsAt - timestamp) / this.duration;
        if ((this.maxFrames * position).floor() > this.frameCount) {
          this.update(this.options.transition(position));
          this.frameCount++;
        }
      }
    }
    return this;
  },

  start: function() {
    if (this.options.before) this.options.before(this);
    if (this.setup) this.setup();
    this.state = 'running';
    this.update(this.options.transition(0));
  },

  cancel: function(after) {
    if (this.state !== 'running') return;
    if (this.teardown) this.teardown();
    if (after && this.options.after) this.options.after(this);
    this.state = 'finished';
  },

  finish: function() {
    if (this.state !== 'running') return;
    this.update(this.options.transition(1));
    this.cancel(true);
  },

  inspect: function() {
    return '#<S2.FX:' + [this.state, this.startsAt, this.endsAt].inspect() + '>';
  },

  update: Prototype.emptyFunction,

  debug: function(message) {
    if (!this.options.debug) return;
    if (window.console && console.log) {
      console.log(message);
    }
  }
});

S2.FX.Element = Class.create(S2.FX.Base, {
  initialize: function($super, element, options) {
    if(!(this.element = $(element)))
      throw(S2.FX.elementDoesNotExistError);
    this.operators = [];
    return $super(options);
  },

  animate: function() {
    var args = $A(arguments), operator =  args.shift();
    operator = operator.charAt(0).toUpperCase() + operator.substring(1);
    this.operators.push(new S2.FX.Operators[operator](this, args[0], args[1] || {}));
  },

  play: function($super, element, options) {
    if (element) this.element = $(element);
    this.operators = [];
    return $super(options);
  },

  update: function(position) {
    for (var i = 0, operator; operator = this.operators[i]; i++) {
      operator.render(position);
    }
  }
});
S2.FX.Heartbeat = Class.create({
  initialize: function(options) {
    this.options = Object.extend({
      framerate: Prototype.Browser.MobileSafari ? 20 : 60
    }, options);
    this.beat = this.beat.bind(this);
  },

  start: function() {
    if (this.heartbeatInterval) return;
    this.heartbeatInterval =
      setInterval(this.beat, 1000/this.options.framerate);
    this.updateTimestamp();
  },

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

  beat: function() {
    this.updateTimestamp();
    document.fire('effect:heartbeat');
  },

  getTimestamp: function() {
    return this.timestamp || this.generateTimestamp();
  },

  generateTimestamp: function() {
    return new Date().getTime();
  },

  updateTimestamp: function() {
    this.timestamp = this.generateTimestamp();
  }
});
S2.FX.Queue = (function(){
  return function() {
    var instance = this;
    var effects = [];

    function getEffects() {
      return effects;
    }

    function active() {
      return effects.length > 0;
    }

    function add(effect) {
      calculateTiming(effect);
      effects.push(effect);
      document.fire('effect:queued', instance);
      return instance;
    }

    function remove(effect) {
      effects = effects.without(effect);
      document.fire('effect:dequeued', instance);
      delete effect;
      return instance;
    }

    function render(timestamp) {
      for (var i = 0, effect; effect = effects[i]; i++) {
        effect.render(timestamp);
        if (effect.state === 'finished') remove(effect);
      }

      return instance;
    }

    function calculateTiming(effect) {
      var position = effect.options.position || 'parallel',
        now = S2.FX.getHeartbeat().getTimestamp();

      var startsAt;
      if (position === 'end') {
        startsAt = effects.without(effect).pluck('endsAt').max() || now;
        if (startsAt < now) startsAt = now;
      } else {
        startsAt = now;
      }

      var delay = (effect.options.delay || 0) * 1000;
      effect.startsAt = startsAt + delay;

      var duration = (effect.options.duration || 1) * 1000;
      effect.endsAt = effect.startsAt + duration;
    }

    Object.extend(instance, {
      getEffects: getEffects,
      active: active,
      add: add,
      remove: remove,
      render: render
    });
  }
})();

S2.FX.Attribute = Class.create(S2.FX.Base, {
  initialize: function($super, object, from, to, options, method) {
    object = Object.isString(object) ? $(object) : object;

    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) :
      function(value) { object[method] = value };

    this.to = to;
    this.from = from;

    return $super(options);
  },

  update: function(position) {
    this.method(this.from.tween(this.to, position));
  }
});
S2.FX.Style = Class.create(S2.FX.Element, {
  setup: function() {
    this.animate('style', this.element, { style: this.options.style });
  }
});
S2.FX.Operators = { };

S2.FX.Operators.Base = Class.create({
  initialize: function(effect, object, options) {
    this.effect = effect;
    this.object = object;
    this.options = Object.extend({
      transition: Prototype.K
    }, options);
  },

  inspect: function() {
    return "#<S2.FX.Operators.Base:" + this.lastValue + ">";
  },

  setup: function() {
  },

  valueAt: function(position) {
  },

  applyValue: function(value) {
  },

  render: function(position) {
    var value = this.valueAt(this.options.transition(position));
    this.applyValue(value);
    this.lastValue = value;
  }
});

S2.FX.Operators.Style = Class.create(S2.FX.Operators.Base, {
  initialize: function($super, effect, object, options) {
    $super(effect, object, options);
    this.element = $(this.object);

    this.style = Object.isString(this.options.style) ?
      S2.CSS.parseStyle(this.options.style) : this.options.style;

    var translations = this.options.propertyTransitions || {};

    this.tweens = [];

    for (var item in this.style) {
      var property = item.underscore().dasherize(),
       from = this.element.getStyle(property), to = this.style[item];

      if (from != to) {
        this.tweens.push([
          property,
          S2.CSS.interpolate.curry(property, from, to),
          item in translations ?
           Object.propertize(translations[item], S2.FX.Transitions) :
           Prototype.K
        ]);
      }
    }
  },

  valueAt: function(position) {
    return this.tweens.map( function(tween){
      return tween[0] + ':' + tween[1](tween[2](position));
    }).join(';');
  },

  applyValue: function(value) {
    if (this.currentStyle == value) return;
    this.element.setStyle(value);
    this.currentStyle = value;
  }
});

S2.FX.Morph = Class.create(S2.FX.Element, {
  setup: function() {
    if (this.options.change)
      this.setupWrappers();
    else if (this.options.style)
      this.animate('style', this.destinationElement || this.element, {
        style: this.options.style,
        propertyTransitions: this.options.propertyTransitions || { }
      });
  },

  teardown: function() {
    if (this.options.change)
      this.teardownWrappers();
  },

  setupWrappers: function() {
    var elementFloat = this.element.getStyle("float"),
      sourceHeight, sourceWidth,
      destinationHeight, destinationWidth,
      maxHeight;

    this.transitionElement = new Element('div').setStyle({ position: "relative", overflow: "hidden", 'float': elementFloat });
    this.element.setStyle({ 'float': "none" }).insert({ before: this.transitionElement });

    this.sourceElementWrapper = this.element.cloneWithoutIDs().wrap('div');
    this.destinationElementWrapper = this.element.wrap('div');

    this.transitionElement.insert(this.sourceElementWrapper).insert(this.destinationElementWrapper);

    sourceHeight = this.sourceElementWrapper.getHeight();
    sourceWidth = this.sourceElementWrapper.getWidth();

    this.options.change();

    destinationHeight = this.destinationElementWrapper.getHeight();
    destinationWidth  = this.destinationElementWrapper.getWidth();

    this.outerWrapper = new Element("div");
    this.transitionElement.insert({ before: this.outerWrapper });
    this.outerWrapper.setStyle({
      overflow: "hidden", height: sourceHeight + "px", width: sourceWidth + "px"
    }).appendChild(this.transitionElement);

    maxHeight = Math.max(destinationHeight, sourceHeight), maxWidth = Math.max(destinationWidth, sourceWidth);

    this.transitionElement.setStyle({ height: sourceHeight + "px", width: sourceWidth + "px" });
    this.sourceElementWrapper.setStyle({ position: "absolute", height: maxHeight + "px", width: maxWidth + "px", top: 0, left: 0 });
    this.destinationElementWrapper.setStyle({ position: "absolute", height: maxHeight + "px", width: maxWidth + "px", top: 0, left: 0, opacity: 0, zIndex: 2000 });

    this.outerWrapper.insert({ before: this.transitionElement }).remove();

    this.animate('style', this.transitionElement, { style: 'height:' + destinationHeight + 'px; width:' + destinationWidth + 'px' });
    this.animate('style', this.destinationElementWrapper, { style: 'opacity: 1.0' });
  },

  teardownWrappers: function() {
    var destinationElement = this.destinationElementWrapper.down();

    if (destinationElement)
      this.transitionElement.insert({ before: destinationElement });

    this.transitionElement.remove();
  }
});
S2.FX.Parallel = Class.create(S2.FX.Base, {
  initialize: function($super, effects, options) {
    this.effects = effects || [];
    return $super(options || {});
  },

  setup: function() {
    this.effects.invoke('setup');
  },

  update: function(position) {
    this.effects.invoke('update', position);
  }
});

S2.FX.Operators.Scroll = Class.create(S2.FX.Operators.Base, {
  initialize: function($super, effect, object, options) {
    $super(effect, object, options);
    this.start = object.scrollTop;
    this.end = this.options.scrollTo;
  },

  valueAt: function(position) {
    return this.start + ((this.end - this.start)*position);
  },

  applyValue: function(value){
    this.object.scrollTop = value.round();
  }
});

S2.FX.Scroll = Class.create(S2.FX.Element, {
  setup: function() {
    this.animate('scroll', this.element, { scrollTo: this.options.to });
  }
});

S2.FX.SlideDown = Class.create(S2.FX.Element, {
  setup: function() {
    var element = this.destinationElement || this.element;
    var layout = element.getLayout();

    var style = {
      height:        layout.get('height') + 'px',
      paddingTop:    layout.get('padding-top') + 'px',
      paddingBottom: layout.get('padding-bottom') + 'px'
    };

    element.setStyle({
      height:         '0',
      paddingTop:     '0',
      paddingBottom:  '0',
      overflow:       'hidden'
    }).show();


    this.animate('style', element, {
      style: style,
      propertyTransitions: {}
    });
  },

  teardown: function() {
    var element = this.destinationElement || this.element;
    element.setStyle({
      height:         '',
      paddingTop:     '',
      paddingBottom:  '',
      overflow:       'visible'
    });
  }
});

S2.FX.SlideUp = Class.create(S2.FX.Morph, {
  setup: function() {
    var element = this.destinationElement || this.element;
    var layout = element.getLayout();

    var style = {
      height:        '0px',
      paddingTop:    '0px',
      paddingBottom: '0px'
    };

    element.setStyle({ overflow: 'hidden' });

    this.animate('style', element, {
      style: style,
      propertyTransitions: {}
    });
  },

  teardown: function() {
    var element = this.destinationElement || this.element;
    element.setStyle({
      height:         '',
      paddingTop:     '',
      paddingBottom:  '',
      overflow:       'visible'
    }).hide();
  }
});


S2.FX.Transitions = {

  linear: Prototype.K,

  sinusoidal: function(pos) {
    return (-Math.cos(pos*Math.PI)/2) + 0.5;
  },

  reverse: function(pos) {
    return 1 - pos;
  },

  mirror: function(pos, transition) {
    transition = transition || S2.FX.Transitions.sinusoidal;
    if(pos<0.5)
      return transition(pos*2);
    else
      return transition(1-(pos-0.5)*2);
  },

  flicker: function(pos) {
    var pos = pos + (Math.random()-0.5)/5;
    return S2.FX.Transitions.sinusoidal(pos < 0 ? 0 : pos > 1 ? 1 : pos);
  },

  wobble: function(pos) {
    return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
  },

  pulse: function(pos, pulses) {
    return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
  },

  blink: function(pos, blinks) {
    return Math.round(pos*(blinks||5)) % 2;
  },

  spring: function(pos) {
    return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
  },

  none: Prototype.K.curry(0),

  full: Prototype.K.curry(1)
};

/*!
 *  Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
 */

(function(){
  function CubicBezierAtTime(t,p1x,p1y,p2x,p2y,duration) {
    var ax=0,bx=0,cx=0,ay=0,by=0,cy=0;
    function sampleCurveX(t) {return ((ax*t+bx)*t+cx)*t;};
    function sampleCurveY(t) {return ((ay*t+by)*t+cy)*t;};
    function sampleCurveDerivativeX(t) {return (3.0*ax*t+2.0*bx)*t+cx;};
    function solveEpsilon(duration) {return 1.0/(200.0*duration);};
    function solve(x,epsilon) {return sampleCurveY(solveCurveX(x,epsilon));};
    function fabs(n) {if(n>=0) {return n;}else {return 0-n;}};
    function solveCurveX(x,epsilon) {
      var t0,t1,t2,x2,d2,i;
      for(t2=x, i=0; i<8; i++) {x2=sampleCurveX(t2)-x; if(fabs(x2)<epsilon) {return t2;} d2=sampleCurveDerivativeX(t2); if(fabs(d2)<1e-6) {break;} t2=t2-x2/d2;}
      t0=0.0; t1=1.0; t2=x; if(t2<t0) {return t0;} if(t2>t1) {return t1;}
      while(t0<t1) {x2=sampleCurveX(t2); if(fabs(x2-x)<epsilon) {return t2;} if(x>x2) {t0=t2;}else {t1=t2;} t2=(t1-t0)*.5+t0;}
      return t2; // Failure.
    };
    cx=3.0*p1x; bx=3.0*(p2x-p1x)-cx; ax=1.0-cx-bx; cy=3.0*p1y; by=3.0*(p2y-p1y)-cy; ay=1.0-cy-by;
    return solve(t, solveEpsilon(duration));
  }
  S2.FX.cubicBezierTransition = function(x1, y1, x2, y2){
    return (function(pos){
      return CubicBezierAtTime(pos,x1,y1,x2,y2,1);
    });
  }
})();

S2.FX.Transitions.webkitCubic =
  S2.FX.cubicBezierTransition(0.25,0.1,0.25,1);
S2.FX.Transitions.webkitEaseInOut =
  S2.FX.cubicBezierTransition(0.42,0.0,0.58,1.0);

/*!
 *  TERMS OF USE - EASING EQUATIONS
 *  Open source under the BSD License.
 *  Easing Equations (c) 2003 Robert Penner, all rights reserved.
 */

Object.extend(S2.FX.Transitions, {
  easeInQuad: function(pos){
     return Math.pow(pos, 2);
  },

  easeOutQuad: function(pos){
    return -(Math.pow((pos-1), 2) -1);
  },

  easeInOutQuad: function(pos){
    if ((pos/=0.5) < 1) return 0.5*Math.pow(pos,2);
    return -0.5 * ((pos-=2)*pos - 2);
  },

  easeInCubic: function(pos){
    return Math.pow(pos, 3);
  },

  easeOutCubic: function(pos){
    return (Math.pow((pos-1), 3) +1);
  },

  easeInOutCubic: function(pos){
    if ((pos/=0.5) < 1) return 0.5*Math.pow(pos,3);
    return 0.5 * (Math.pow((pos-2),3) + 2);
  },

  easeInQuart: function(pos){
    return Math.pow(pos, 4);
  },

  easeOutQuart: function(pos){
    return -(Math.pow((pos-1), 4) -1)
  },

  easeInOutQuart: function(pos){
    if ((pos/=0.5) < 1) return 0.5*Math.pow(pos,4);
    return -0.5 * ((pos-=2)*Math.pow(pos,3) - 2);
  },

  easeInQuint: function(pos){
    return Math.pow(pos, 5);
  },

  easeOutQuint: function(pos){
    return (Math.pow((pos-1), 5) +1);
  },

  easeInOutQuint: function(pos){
    if ((pos/=0.5) < 1) return 0.5*Math.pow(pos,5);
    return 0.5 * (Math.pow((pos-2),5) + 2);
  },

  easeInSine: function(pos){
    return -Math.cos(pos * (Math.PI/2)) + 1;
  },

  easeOutSine: function(pos){
    return Math.sin(pos * (Math.PI/2));
  },

  easeInOutSine: function(pos){
    return (-.5 * (Math.cos(Math.PI*pos) -1));
  },

  easeInExpo: function(pos){
    return (pos==0) ? 0 : Math.pow(2, 10 * (pos - 1));
  },

  easeOutExpo: function(pos){
    return (pos==1) ? 1 : -Math.pow(2, -10 * pos) + 1;
  },

  easeInOutExpo: function(pos){
    if(pos==0) return 0;
    if(pos==1) return 1;
    if((pos/=0.5) < 1) return 0.5 * Math.pow(2,10 * (pos-1));
    return 0.5 * (-Math.pow(2, -10 * --pos) + 2);
  },

  easeInCirc: function(pos){
    return -(Math.sqrt(1 - (pos*pos)) - 1);
  },

  easeOutCirc: function(pos){
    return Math.sqrt(1 - Math.pow((pos-1), 2))
  },

  easeInOutCirc: function(pos){
    if((pos/=0.5) < 1) return -0.5 * (Math.sqrt(1 - pos*pos) - 1);
    return 0.5 * (Math.sqrt(1 - (pos-=2)*pos) + 1);
  },

  easeOutBounce: function(pos){
    if ((pos) < (1/2.75)) {
      return (7.5625*pos*pos);
    } else if (pos < (2/2.75)) {
      return (7.5625*(pos-=(1.5/2.75))*pos + .75);
    } else if (pos < (2.5/2.75)) {
      return (7.5625*(pos-=(2.25/2.75))*pos + .9375);
    } else {
      return (7.5625*(pos-=(2.625/2.75))*pos + .984375);
    }
  },

  easeInBack: function(pos){
    var s = 1.70158;
    return (pos)*pos*((s+1)*pos - s);
  },

  easeOutBack: function(pos){
    var s = 1.70158;
    return (pos=pos-1)*pos*((s+1)*pos + s) + 1;
  },

  easeInOutBack: function(pos){
    var s = 1.70158;
    if((pos/=0.5) < 1) return 0.5*(pos*pos*(((s*=(1.525))+1)*pos -s));
    return 0.5*((pos-=2)*pos*(((s*=(1.525))+1)*pos +s) +2);
  },

  elastic: function(pos) {
    return -1 * Math.pow(4,-8*pos) * Math.sin((pos*6-1)*(2*Math.PI)/2) + 1;
  },

  swingFromTo: function(pos) {
    var s = 1.70158;
    return ((pos/=0.5) < 1) ? 0.5*(pos*pos*(((s*=(1.525))+1)*pos - s)) :
      0.5*((pos-=2)*pos*(((s*=(1.525))+1)*pos + s) + 2);
  },

  swingFrom: function(pos) {
    var s = 1.70158;
    return pos*pos*((s+1)*pos - s);
  },

  swingTo: function(pos) {
    var s = 1.70158;
    return (pos-=1)*pos*((s+1)*pos + s) + 1;
  },

  bounce: function(pos) {
    if (pos < (1/2.75)) {
        return (7.5625*pos*pos);
    } else if (pos < (2/2.75)) {
        return (7.5625*(pos-=(1.5/2.75))*pos + .75);
    } else if (pos < (2.5/2.75)) {
        return (7.5625*(pos-=(2.25/2.75))*pos + .9375);
    } else {
        return (7.5625*(pos-=(2.625/2.75))*pos + .984375);
    }
  },

  bouncePast: function(pos) {
    if (pos < (1/2.75)) {
        return (7.5625*pos*pos);
    } else if (pos < (2/2.75)) {
        return 2 - (7.5625*(pos-=(1.5/2.75))*pos + .75);
    } else if (pos < (2.5/2.75)) {
        return 2 - (7.5625*(pos-=(2.25/2.75))*pos + .9375);
    } else {
        return 2 - (7.5625*(pos-=(2.625/2.75))*pos + .984375);
    }
  },

  easeFromTo: function(pos) {
    if ((pos/=0.5) < 1) return 0.5*Math.pow(pos,4);
    return -0.5 * ((pos-=2)*Math.pow(pos,3) - 2);
  },

  easeFrom: function(pos) {
    return Math.pow(pos,4);
  },

  easeTo: function(pos) {
    return Math.pow(pos,0.25);
  }
});
(function(FX) {

  Hash.addMethods({
    hasKey: function(key) {
      return (key in this._object);
    }
  });

  var supported = false;
  var hardwareAccelerationSupported = false;
  var transitionEndEventName = null;

  function isHWAcceleratedSafari() {
    var ua = navigator.userAgent, av = navigator.appVersion;
    return (!ua.include('Chrome') && av.include('10_6')) ||
     Prototype.Browser.MobileSafari;
  }

  (function() {
    var eventNames = {
      'WebKitTransitionEvent': 'webkitTransitionEnd',
      'TransitionEvent': 'transitionend'
    };
    if (S2.CSS.VENDOR.PREFIX) {
      var p = S2.CSS.VENDOR.PREFIX;
      eventNames[p + 'TransitionEvent'] = p + 'TransitionEnd';
    }

    for (var e in eventNames) {
      try {
        document.createEvent(e);
        transitionEndEventName = eventNames[e];
        supported = true;
        if (e == 'WebKitTransitionEvent') {
          hardwareAccelerationSupported = isHWAcceleratedSafari();
        }
        return;
      } catch (ex) { }
    }
  })();

  if (!supported) return;


  Prototype.BrowserFeatures.CSSTransitions = true;
  S2.Extensions.CSSTransitions = true;
  S2.Extensions.HardwareAcceleratedCSSTransitions = hardwareAccelerationSupported;

  if (hardwareAccelerationSupported) {
    Object.extend(FX.DefaultOptions, { accelerate: true });
  }

  function v(prop) {
    return S2.CSS.vendorizeProperty(prop);
  }

  var CSS_TRANSITIONS_PROPERTIES = $w(
   'border-top-left-radius border-top-right-radius ' +
   'border-bottom-left-radius border-bottom-right-radius ' +
   'background-size transform'
  ).map( function(prop) {
    return v(prop).camelize();
  });

  CSS_TRANSITIONS_PROPERTIES.each(function(property) {
    S2.CSS.PROPERTIES.push(property);
  });

  S2.CSS.NUMERIC_PROPERTIES = S2.CSS.PROPERTIES.findAll(function(property) {
    return !property.endsWith('olor')
  });

  CSS_TRANSITIONS_HARDWARE_ACCELERATED_PROPERTIES =
   S2.Extensions.HardwareAcceleratedCSSTransitions ?
    $w('top left bottom right opacity') : [];

  var TRANSLATE_TEMPLATE = new Template("translate(#{0}px, #{1}px)");


  var Operators = FX.Operators;

  Operators.CssTransition = Class.create(Operators.Base, {
    initialize: function($super, effect, object, options) {
      $super(effect, object, options);
      this.element = $(this.object);

      var style = this.options.style;

      this.style = Object.isString(style) ?
       S2.CSS.normalize(this.element, style) : style;

      this.style = $H(this.style);

      this.targetStyle = S2.CSS.serialize(this.style);
      this.running = false;
    },

    _canHardwareAccelerate: function() {
      if (this.effect.options.accelerate === false) return false;

      var style = this.style.toObject(), keys = this.style.keys();
      var element = this.element;

      if (keys.length === 0) return false;

      var otherPropertyExists = keys.any( function(key) {
        return !CSS_TRANSITIONS_HARDWARE_ACCELERATED_PROPERTIES.include(key);
      });

      if (otherPropertyExists) return false;

      var currentStyles = {
        left:   element.getStyle('left'),
        right:  element.getStyle('right'),
        top:    element.getStyle('top'),
        bottom: element.getStyle('bottom')
      };

      function hasTwoPropertiesOnSameAxis(obj) {
        if (obj.top && obj.bottom) return true;
        if (obj.left && obj.right) return true;
        return false;
      }

      if (hasTwoPropertiesOnSameAxis(currentStyles)) return false;
      if (hasTwoPropertiesOnSameAxis(style))         return false;

      return true;
    },

    _adjustForHardwareAcceleration: function(style) {
      var dx = 0, dy = 0;

      $w('top bottom left right').each( function(prop) {
        if (!style.hasKey(prop)) return;
        var current = window.parseInt(this.element.getStyle(prop), 10);
        var target  = window.parseInt(style.get(prop), 10);

        if (prop === 'top') {
          dy += (target - current);
        } else if (prop === 'bottom') {
          dy += (current - target);
        } else if (prop === 'left') {
          dx += (target - current);
        } else if (prop === 'right') {
          dx += (current - target);
        }

        style.unset(prop);
      }, this);

      var transformProperty = v('transform');

      if (dx !== 0 || dy !== 0) {
        var translation = TRANSLATE_TEMPLATE.evaluate([dx, dy]);
        style.set(transformProperty, translation);
      }

      this.targetStyle += transformProperty + ': translate(0px, 0px);';
      return style;
    },

    render: function() {
      if (this.running === true) return;
      var style = this.style.clone(), effect = this.effect;
      if (this._canHardwareAccelerate()) {
        effect.accelerated = true;
        style = this._adjustForHardwareAcceleration(style);
      } else {
        effect.accelerated = false;
      }

      var s = this.element.style;

      var original = {};
      $w('transition-property transition-duration transition-timing-function').each( function(prop) {
        prop = v(prop).camelize();
        original[prop] = s[prop];
      });

      this.element.store('s2.targetStyle', this.targetStyle);

      this.element.store('s2.originalTransitionStyle', original);

      s[v('transition-property').camelize()] = style.keys().join(',');
      s[v('transition-duration').camelize()] = (effect.duration / 1000).toFixed(3) + 's';
      s[v('transition-timing-function').camelize()] = timingFunctionForTransition(effect.options.transition);

      if (Prototype.Browser.Opera) {
        this._setStyle.bind(this).defer(style.toObject());
      } else this._setStyle(style.toObject());
      this.running = true;

      this.render = Prototype.emptyFunction;
    },

    _setStyle: function(style) {
      this.element.setStyle(style);
    }
  });

  Operators.CssTransition.TIMING_MAP = {
    linear:     'linear',
    sinusoidal: 'ease-in-out'
  };

  function timingFunctionForTransition(transition) {
    var timing = null, MAP = FX.Operators.CssTransition.TIMING_MAP;

    for (var t in MAP) {
      if (FX.Transitions[t] === transition) {
        timing = MAP[t];
        break;
      }
    }
    return timing;
  }

  function isCSSTransitionCompatible(effect) {
    if (!S2.Extensions.CSSTransitions) return false;
    var opt = effect.options;

    if ((opt.engine || '') === 'javascript') return false;

    if (!timingFunctionForTransition(opt.transition)) return false;

    if (opt.propertyTransitions) return false;

    return true;
  };

  FX.Morph = Class.create(FX.Morph, {
    setup: function() {
      if (this.options.change) {
        this.setupWrappers();
      } else if (this.options.style) {
        this.engine  = 'javascript';
        var operator = 'style';

        var style = Object.isString(this.options.style) ?
         S2.CSS.parseStyle(this.options.style) : style;

        var normalizedStyle = S2.CSS.normalize(
         this.destinationElement || this.element, style);

        var changesStyle = Object.keys(normalizedStyle).length > 0;

        if (changesStyle && isCSSTransitionCompatible(this)) {
          this.engine = 'css-transition';
          operator    = 'CssTransition';

          this.update = function(position) {
            this.element.store('s2.effect', this);

            S2.FX.setReady(this.element, false);

            for (var i = 0, operator; operator = this.operators[i]; i++) {
              operator.render(position);
            }

            this.render = Prototype.emptyFunction;
          }
        }

        this.animate(operator, this.destinationElement || this.element, {
          style: this.options.style,
          propertyTransitions: this.options.propertyTransitions || { }
        });
      }
    }
  });

  document.observe(transitionEndEventName, function(event) {
    var element = event.element();
    if (!element) return;

    var effect = element.retrieve('s2.effect');

    if (!effect || effect.state === 'finished') return;

    function adjust(element, effect){
      var targetStyle = element.retrieve('s2.targetStyle');
      if (!targetStyle) return;

      element.setStyle(targetStyle);

      var originalTransitionStyle = element.retrieve('s2.originalTransitionStyle');

      var storage = element.getStorage();
      storage.unset('s2.targetStyle');
      storage.unset('s2.originalTransitionStyle');
      storage.unset('s2.effect');

      if (originalTransitionStyle) {
        element.setStyle(originalTransitionStyle);
      }
      S2.FX.setReady(element);
    }

    var durationProperty = v('transition-duration').camelize();
    element.style[durationProperty] = '';
    adjust(element, effect);

    effect.state = 'finished';

    var after = effect.options.after;
    if (after) after(effect);
  });
})(S2.FX);

Element.__scrollTo = Element.scrollTo;
Element.addMethods({
  scrollTo: function(element, to, options){
    if(arguments.length == 1) return Element.__scrollTo(element);
    new S2.FX.Scroll(element, Object.extend(options || {}, { to: to })).play();
    return element;
  }
});

Element.addMethods({
  effect: function(element, effect, options){
    if (Object.isFunction(effect))
      effect = new effect(element, options);
    else if (Object.isString(effect))
      effect = new S2.FX[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
    effect.play(element, options);
    return element;
  },

  morph: function(element, style, options) {
    options = S2.FX.parseOptions(options);
    if (!options.queue) {
      options.queue = element.retrieve('S2.FX.Queue');
      if (!options.queue) {
        element.store('S2.FX.Queue', options.queue = new S2.FX.Queue());
      }
    }
    if (!options.position) options.position = 'end';
    return element.effect('morph', Object.extend(options, { style: style }));
  }.optionize(),

  appear: function(element, options){
    return element.setStyle('opacity: 0;').show().morph('opacity: 1', options);
  },

  fade: function(element, options){
    options = Object.extend({
      after: Element.hide.curry(element)
    }, options || {});
    return element.morph('opacity: 0', options);
  },

  cloneWithoutIDs: function(element) {
    element = $(element);
    var clone = element.cloneNode(true);
    clone.id = '';
    $(clone).select('*[id]').each(function(e) { e.id = ''; });
    return clone;
  }
});

(function(){
  var transform;

  if(window.CSSMatrix) transform = function(element, transform){
    element.style.transform = 'scale('+(transform.scale||1)+') rotate('+(transform.rotation||0)+'rad)';
    return element;
  };
  else if(window.WebKitCSSMatrix) transform = function(element, transform){
    element.style.webkitTransform = 'scale('+(transform.scale||1)+') rotate('+(transform.rotation||0)+'rad)';
    return element;
  };
  else if(Prototype.Browser.Gecko) transform = function(element, transform){
    element.style.MozTransform = 'scale('+(transform.scale||1)+') rotate('+(transform.rotation||0)+'rad)';
    return element;
  };
  else if(Prototype.Browser.IE) transform = function(element, transform){
    if(!element._oDims)
      element._oDims = [element.offsetWidth, element.offsetHeight];
    var c = Math.cos(transform.rotation||0) * 1, s = Math.sin(transform.rotation||0) * 1,
        filter = "progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand',M11="+c+",M12="+(-s)+",M21="+s+",M22="+c+")";
    element.style.filter = filter;
    element.style.marginLeft = (element._oDims[0]-element.offsetWidth)/2+'px';
    element.style.marginTop = (element._oDims[1]-element.offsetHeight)/2+'px';
    return element;
  };
  else transform = function(element){ return element; }

  Element.addMethods({ transform: transform });
})();

S2.viewportOverlay = function(){
  var viewport = document.viewport.getDimensions(),
    offsets = document.viewport.getScrollOffsets();
  return new Element('div').setStyle({
    position: 'absolute',
    left: offsets.left + 'px', top: offsets.top + 'px',
    width: viewport.width + 'px', height: viewport.height + 'px'
  });
};
S2.FX.Helpers = {
  fitIntoRectangle: function(w, h, rw, rh){
    var f = w/h, rf = rw/rh; return f < rf ?
      [(rw - (w*(rh/h)))/2, 0, w*(rh/h), rh] :
      [0, (rh - (h*(rw/w)))/2, rw, h*(rw/w)];
  }
};

S2.UI = {};

S2.UI.Mixin = {};


Object.deepExtend = function(destination, source) {
  for (var property in source) {
    if (source[property] && source[property].constructor &&
     source[property].constructor === Object) {
      destination[property] = destination[property] || {};
      arguments.callee(destination[property], source[property]);
    } else {
      destination[property] = source[property];
    }
  }
  return destination;
};

S2.UI.Mixin.Configurable = {
  setOptions: function(options) {
    if (!this.options) {
      this.options = {};
      var constructor = this.constructor;
      if (constructor.superclass) {
        var chain = [], klass = constructor;
        while (klass = klass.superclass)
          chain.push(klass);
        chain = chain.reverse();

        for (var i = 0, l = chain.length; i < l; i++)
          Object.deepExtend(this.options, chain[i].DEFAULT_OPTIONS || {});
      }

      Object.deepExtend(this.options, constructor.DEFAULT_OPTIONS || {});
    }
    return Object.deepExtend(this.options, options || {});
  }
};

S2.UI.Mixin.Trackable = {
  register: function() {
    var klass = this.constructor;
    if (!klass.instances) {
      klass.instances = [];
    }
    if (!klass.instances.include(this)) {
      klass.instances.push(this);
    }

    if (Object.isFunction(klass.onRegister)) {
      klass.onRegister.call(klass, this);
    }
  },

  unregister: function() {
    var klass = this.constructor;
    klass.instances = klass.instances.without(this);
    if (Object.isFunction(klass.onRegister)) {
      klass.onUnregister.call(klass, this);
    }
  }
};

(function() {
  var METHODS = $w('observe stopObserving show hide ' +
   'addClassName removeClassName hasClassName setStyle getStyle' +
   'writeAttribute readAttribute fire');

  var E = {};

  METHODS.each( function(name) {
    E[name] = function() {
      var element = this.toElement();
      return element[name].apply(element, arguments);
    };
  });

  E.on = function() {
    if (!this.__observers) this.__observers = [];
    var element = this.toElement();
    var result = element.on.apply(element, arguments);
    this.__observers.push(result);
  };

  window.S2.UI.Mixin.Element = E;
})();


S2.UI.Mixin.Shim = {
  __SHIM_TEMPLATE: new Template(
    "<iframe frameborder='0' tabindex='-1' src='javascript:false;' " +
      "style='display:block;position:absolute;z-index:-1;overflow:hidden; " +
      "filter:Alpha(Opacity=\"0\");" +
      "top:expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\');" +
       "left:expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\');" +
       "width:expression(this.parentNode.offsetWidth+\'px\');" +
       "height:expression(this.parentNode.offsetHeight+\'px\');" +
    "' id='#{0}'></iframe>"
  ),

  createShim: function(element) {
    this.__shim_isie6 = (Prototype.Browser.IE &&
     (/6.0/).test(navigator.userAgent));
    if (!this.__shim_isie6) return;

    element = $(element || this.element);
    if (!element) return;

    this.__shimmed = element;

    var id = element.identify() + '_iframeshim', shim = $(id);

    if (shim) shim.remove();

    element.insert({
      top: this.__SHIM_TEMPLATE.evaluate([id])
    });

    this.__shim_id = id;
  },

  adjustShim: function() {
    if (!this.__shim_isie6) return;
    var shim = this.__shimmed.down('iframe#' + this.__shim_id);
    var element = this.__shimmed;
    if (!shim) return;

    shim.setStyle({
      width:  element.offsetWidth  + 'px',
      height: element.offsetHeight + 'px'
    });
  },

  destroyShim: function() {
    if (!this.__shim_isie6) return;
    var shim = this.__shimmed.down('iframe#' + this.__shim_id);
    if (shim) {
      shim.remove();
    }

    this.__shimmed = null;
  }
};

Object.extend(S2.UI, {
  addClassNames: function(elements, classNames) {
    if (Object.isElement(elements)) {
      elements = [elements];
    }

    if (Object.isString(classNames)) {
      classNames = classNames.split(' ');
    }

    var j, className;
    for (var i = 0, element; element = elements[i]; i++) {
      for (j = 0; className = classNames[j]; j++) {
        Element.addClassName(element, className);
      }
    }

    return elements;
  },

  removeClassNames: function(elements, classNames) {
    if (Object.isElement(elements)) {
      elements = [elements];
    }

    if (Object.isString(classNames)) {
      classNames = classNames.split(' ');
    }

    var j, className;
    for (var i = 0, element; element = elements[i]; i++) {
      for (j = 0; className = classNames[j]; j++) {
        Element.removeClassName(element, className);
      }
    }
  },

  FOCUSABLE_ELEMENTS: $w('input select textarea button object'),

  isFocusable: function(element) {
    var name = element.nodeName.toLowerCase(),
     tabIndex = element.readAttribute('tabIndex'),
     isFocusable = false;

    if (S2.UI.FOCUSABLE_ELEMENTS.include(name)) {
      isFocusable = !element.disabled;
    } else if (name === 'a' || name === 'area') {
      isFocusable = element.href || (tabIndex && !isNaN(tabIndex));
    } else {
      isFocusable = tabIndex && !isNaN(tabIndex);
    }
    return !!isFocusable && S2.UI.isVisible(element);
  },


  makeFocusable: function(elements, shouldBeFocusable) {
    if (Object.isElement(elements)) {
      elements = [elements];
    }

    var value = shouldBeFocusable ? '0' : '-1';
    for (var i = 0, element; element = elements[i]; i++) {
      $(element).writeAttribute('tabIndex', value);
    }
  },

  findFocusables: function(element) {
    return $(element).descendants().select(S2.UI.isFocusable);
  },

  isVisible: function(element) {
    element = $(element);
    var originalElement = element;

    while (element && element.parentNode) {
      var display = element.getStyle('display'),
       visibility = element.getStyle('visibility');

      if (display === 'none' || visibility === 'hidden') {
        return false;
      }
      element = $(element.parentNode);
    }
    return true;
  },

  makeVisible: function(elements, shouldBeVisible) {
    if (Object.isElement(elements)) {
      elements = [elements];
    }

    var newValue = shouldBeVisible ? "visible": "hidden";
    for (var i = 0, element; element = elements[i]; i++) {
      element.setStyle({ 'visibility': newValue });
    }

    return elements;
  },

  modifierUsed: function(event) {
    return event.metaKey || event.ctrlKey || event.altKey;
  },

  getText: function(element) {
    element = $(element);
    return element.innerText && !window.opera ? element.innerText :
     element.innerHTML.stripScripts().unescapeHTML().replace(/[\n\r\s]+/g, ' ');
  }
});

(function() {
  var IGNORED_ELEMENTS = [];
  function _textSelectionHandler(event) {
    var element = Event.element(event);
    if (!element) return;
    for (var i = 0, node; node = IGNORED_ELEMENTS[i]; i++) {
      if (element === node || element.descendantOf(node)) {
        Event.stop(event);
        break;
      }
    }
  }

  if (document.attachEvent) {
    document.onselectstart = _textSelectionHandler.bindAsEventListener(window);
  } else {
  }

  Object.extend(S2.UI, {
    enableTextSelection: function(element) {
      element.setStyle({
        '-moz-user-select': '',
        '-webkit-user-select': '',
        'user-select': ''
      });
      IGNORED_ELEMENTS = IGNORED_ELEMENTS.without(element);
      return element;
    },

    disableTextSelection: function(element) {
      element.setStyle({
        '-moz-user-select': 'none',
        '-webkit-user-select': 'none',
        'user-select': ''
      });
      if (!IGNORED_ELEMENTS.include(element)) {
        IGNORED_ELEMENTS.push(element);
      }
      return element;
    }
  });
})();
S2.UI.Behavior = Class.create(S2.UI.Mixin.Configurable, {
  initialize: function(element, options) {
    this.element = element;
    this.setOptions(options);

    Object.extend(this, options);

    this._observers = {};

    function isEventHandler(eventName) {
      return eventName.startsWith('on') || eventName.include('/on');
    }

    var parts, element, name, handler;
    for (var eventName in this) {
      if (!isEventHandler(eventName)) continue;

      parts = eventName.split('/');
      if (parts.length === 2) {
        element = this[parts.first()] || this.element;
      } else {
        element = this.element;
      }
      name = parts.last();

      handler = this._observers[name] = this[eventName].bind(this);
      element.observe(name.substring(2), handler);
    }
  },

  destroy: function() {
    var element = this.options.proxy || this.element;
    var handler;
    for (var eventName in this._observers) {
      handler = this._observers[eventName];
      element.stopObserving(eventName.substring(2), handler);
    }
  }
});


Object.extend(S2.UI, {
  addBehavior: function(element, behaviorClass, options) {
    var self = arguments.callee;
    if (Object.isArray(element)) {
      element.each( function(el) { self(el, behaviorClass, options); });
      return;
    }

    if (Object.isArray(behaviorClass)) {
      behaviorClass.each( function(klass) { self(element, klass, options ); });
      return;
    }

    var instance = new behaviorClass(element, options || {});
    var behaviors = $(element).retrieve('ui.behaviors', []);
    behaviors.push(instance);
  },

  removeBehavior: function(element, behaviorClass) {
    var self = arguments.callee;
    if (Object.isArray(element)) {
      element.each( function(el) { self(el, behaviorClass); });
      return;
    }

    if (Object.isArray(behaviorClass)) {
      behaviorClass.each( function(klass) { self(element, klass); });
      return;
    }

    var behaviors = $(element).retrieve('ui.behaviors', []);
    var shouldBeRemoved = [];
    for (var i = 0, behavior; behavior = behaviors[i]; i++) {
      if (!behavior instanceof behaviorClass) continue;
      behavior.destroy();
      shouldBeRemoved.push(behavior);
    }
    $(element).store('ui.behaviors', behaviors.without(shouldBeRemoved));
  },


  getBehavior: function(element, behaviorClass) {
    element = $(element);

    var behaviors = element.retrieve('ui.behaviors', []);
    for (var i = 0, l = behaviors.length, b; i < l; i++) {
      b = behaviors[i];
      if (b.constructor === behaviorClass) return b;
    }

    return null;
  }
});

S2.UI.Behavior.Drag = Class.create(S2.UI.Behavior, {
  initialize: function($super, element, options) {
    this.__onmousemove = this._onmousemove.bind(this);
    $super(element, options);
    this.element.addClassName('ui-draggable');
  },

  destroy: function($super) {
    this.element.removeClassName('ui-draggable');
    $super();
  },

  "handle/onmousedown": function(event) {
    var element = this.element;
    this._startPointer  = event.pointer();
    this._startPosition = {
      left: window.parseInt(element.getStyle('left'), 10),
      top:  window.parseInt(element.getStyle('top'),  10)
    };
    document.observe('mousemove', this.__onmousemove);
  },

  "handle/onmouseup": function(event) {
    this._startPointer  = null;
    this._startPosition = null;
    document.stopObserving('mousemove', this.__onmousemove);
  },

  _onmousemove: function(event) {
    var pointer = event.pointer();

    if (!this._startPointer) return;

    var delta = {
      x: pointer.x - this._startPointer.x,
      y: pointer.y - this._startPointer.y
    };

    var newPosition = {
      left: (this._startPosition.left + delta.x) + 'px',
      top:  (this._startPosition.top  + delta.y) + 'px'
    };

    this.element.setStyle(newPosition);
  }
});
S2.UI.Behavior.Focus = Class.create(S2.UI.Behavior, {
  onfocus: function(event) {
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.addClassName('ui-state-focus');
  },

  onblur: function(event) {
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.removeClassName('ui-state-focus');
  }
});
S2.UI.Behavior.Hover = Class.create(S2.UI.Behavior, {
  onmouseenter: function(event) {
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.addClassName('ui-state-hover');
  },

  onmouseleave: function(event) {
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.removeClassName('ui-state-hover');
  }
});
S2.UI.Behavior.Resize = Class.create(S2.UI.Behavior, {
  initialize: function(element, options) {
  }
});
S2.UI.Behavior.Down = Class.create(S2.UI.Behavior, {
  _isRelevantKey: function(event) {
    var code = event.keyCode;
    return (code === Event.KEY_RETURN || code === Event.KEY_SPACE);
  },

  onkeydown: function(event) {
    if (!this._isRelevantKey(event)) return;
    this.onmousedown(event);
  },

  onkeyup: function(event) {
    if (!this._isRelevantKey(event)) return;
    this.onmouseup(event);
  },

  onmousedown: function(event) {
    this._down = true;
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.addClassName('ui-state-down');
  },

  onmouseup: function(event) {
    this._down = false;
    if (this.element.hasClassName('ui-state-disabled')) return;
    this.element.removeClassName('ui-state-down');
  },

  onmouseleave: function(event) {
    return this.onmouseup(event);
  },

  onmouseenter: function(event) {
    if (this._down) {
      return this.onmousedown(event);
    }
  }
});



(function(UI) {

  UI.Base = Class.create(UI.Mixin.Configurable, {
    NAME: "S2.UI.Base",

    initialize:      Function.ABSTRACT,

    addObservers:    Function.ABSTRACT,

    removeObservers: function() {
      if (this.__observers) {
        this.__observers.invoke('stop');
        this.__observers = null;
      }
    },

    destroy: function() {
      this.removeObservers();
    },

    toElement: function() {
      return this.element || null;
    },

    inspect: function() {
      return "#<#{NAME}>".interpolate(this);
    }
  });

})(S2.UI);

Object.extend(Event, {
  KEY_SPACE: 32
});

(function(UI) {

  UI.Overlay = Class.create(
   UI.Base,
   UI.Mixin.Trackable,
   UI.Mixin.Shim, {
    NAME: "S2.UI.Overlay",

    initialize: function(options) {
      this.setOptions(options);
      this.element = new Element('div', {
        'class': 'ui-widget-overlay'
      });

      this.register();
      this.createShim();
      this.adjustShim();
      this.constructor.onResize();
    },

    destroy: function() {
      this.element.remove();
      this.unregister();
    },

    toElement: function() {
      return this.element;
    }
  });

  Object.extend(UI.Overlay, {
    onRegister: function() {
      if (this.instances.length !== 1) return;

      this._resizeObserver = this._resizeObserver || this.onResize.bind(this);
      Event.observe(window, 'resize', this._resizeObserver);
      Event.observe(window, 'scroll', this._resizeObserver);
    },

    onUnregister: function() {
      if (this.instances.length !== 0) return;
      Event.stopObserving(window, 'resize', this._resizeObserver);
      Event.stopObserving(window, 'scroll', this._resizeObserver);
    },

    onResize: function() {
      var vSize   = document.viewport.getDimensions();
      var offsets = document.viewport.getScrollOffsets();
      this.instances.each( function(instance) {
        var element = instance.element;
        element.setStyle({
          width:  vSize.width  + 'px',
          height: vSize.height + 'px',
          left:   offsets.left + 'px',
          top:    offsets.top  + 'px'
        });
      });
      (function() {
        this.instances.invoke('adjustShim');
      }).bind(this).defer();
    }
  });

})(S2.UI);

(function(UI) {
  UI.Slider = Class.create(UI.Base, {
    NAME: "S2.UI.Slider",

    initialize: function(element, options) {
      this.element = $(element);
      var opt = this.setOptions(options);

      UI.addClassNames(this.element, 'ui-slider ui-widget ' +
       'ui-widget-content ui-corner-all');

      this.orientation = opt.orientation;

      this.element.addClassName('ui-slider-' + this.orientation);

      this._computeTrackLength();

      var initialValues = opt.value.initial;
      if (!Object.isArray(initialValues)) {
        initialValues = [initialValues];
      }

      this.values  = initialValues;
      this.handles = [];
      this.values.each( function(value, index) {
        var handle = new Element('a', { href: '#' });
        handle.store('ui.slider.handle', index);
        this.handles.push(handle);
        this.element.insert(handle);
      }, this);

      UI.addClassNames(this.handles, 'ui-slider-handle ui-state-default ' +
       'ui-corner-all');
      this.handles.invoke('writeAttribute', 'tabIndex', '0');

      this.activeHandle = this.handles.first();

      this.handles.invoke('observe', 'click', Event.stop);
      UI.addBehavior(this.handles, [UI.Behavior.Hover, UI.Behavior.Focus]);

      this.observers = {
        focus:          this.focus.bind(this),
        blur:           this.blur.bind(this),
        keydown:        this.keydown.bind(this),
        keyup:          this.keyup.bind(this),
        mousedown:      this.mousedown.bind(this),
        mouseup:        this.mouseup.bind(this),
        mousemove:      this.mousemove.bind(this),
        rangeMouseDown: this.rangeMouseDown.bind(this),
        rangeMouseMove: this.rangeMouseMove.bind(this),
        rangeMouseUp:   this.rangeMouseUp.bind(this)
      };

      var v = opt.value;
      if (v.step !== null) {
        this._possibleValues = [];
        for (var val = v.min; val < v.max; val += v.step) {
          this._possibleValues.push(val);
        }
        this._possibleValues.push(v.max);

        this.keyboardStep = v.step;
      } else if (opt.possibleValues) {
        this._possibleValues = opt.possibleValues.clone();
        this.keyboardStep = null;
      } else {
        this.keyboardStep = (v.max - v.min) / 100;
      }

      this.range = null;
      if (opt.range && this.values.length === 2) {
        this.restricted = true;
        this.range = new Element('div', { 'class': 'ui-slider-range' });
        this.element.insert(this.range);

        this.range.addClassName('ui-widget-header');
      }

      this._computeTrackLength();
      this._computeHandleLength();

      this.active   = false;
      this.dragging = false;
      this.disabled = false;

      this.addObservers();

      this.values.each(this.setValue, this);

      this.initialized = true;
    },

    addObservers: function() {
      this.element.observe('mousedown', this.observers.mousedown);
      if (this.range) {
        this.range.observe('mousedown', this.observers.rangeMouseDown);
      }
      this.handles.invoke('observe', 'keydown', this.observers.keydown);
      this.handles.invoke('observe', 'keyup',   this.observers.keyup);
    },

    _computeTrackLength: function() {
      var length, dim;
      if (this.orientation === 'vertical') {
        dim = this.element.offsetHeight;
        length = (dim !== 0) ? dim :
         window.parseInt(this.element.getStyle('height'), 10);
      } else {
        dim = this.element.offsetWidth;
        length = (dim !== 0) ? dim :
         window.parseInt(this.element.getStyle('width'), 10);
      }

      this._trackLength = length;
      return length;
    },

    _computeHandleLength: function() {
      var handle = this.handles.first(), length, dim;

      if (!handle) return;

      if (this.orientation === 'vertical') {
        dim = handle.offsetHeight;
        length = (dim !== 0) ? dim :
         window.parseInt(handle.getStyle('height'), 10);
        this._trackMargin = handle.getLayout().get('margin-top');
        this._trackLength -= 2 * this._trackMargin;
      } else {
        dim = handle.offsetWidth;
        length = (dim !== 0) ? dim :
         window.parseInt(handle.getStyle('width'), 10);
         this._trackMargin = handle.getLayout().get('margin-left');
         this._trackLength -= 2 * this._trackMargin;
      }

      this._handleLength = length;
      return length;
    },

    _nextValue: function(currentValue, direction) {
      if (this.options.possibleValues) {
        var index = this._possibleValues.indexOf(currentValue);
        return this._possibleValues[index + direction];
      } else {
        return currentValue + (this.keyboardStep * direction);
      }
    },

    keydown: function(event) {
      if (this.options.disabled) return;

      var handle = event.findElement();
      var index  = handle.retrieve('ui.slider.handle');
      var allow = true, opt = this.options;

      if (!Object.isNumber(index)) return;

      var interceptKeys = [Event.KEY_HOME, Event.KEY_END, Event.KEY_UP,
       Event.KEY_DOWN, Event.KEY_LEFT, Event.KEY_RIGHT];

      if (!interceptKeys.include(event.keyCode)) {
        return;
      }

      handle.addClassName('ui-state-active');

      var currentValue, newValue, step = this.keyboardStep;
      currentValue = newValue = this.values[index];

      switch (event.keyCode) {
      case Event.KEY_HOME:
        newValue = opt.value.min; break;
      case Event.KEY_END:
        newValue = opt.value.max; break;
      case Event.KEY_UP: // fallthrough
      case Event.KEY_RIGHT:
        if (currentValue === opt.value.max) return;
        newValue = this._nextValue(currentValue, 1);
        break;
      case Event.KEY_DOWN: // fallthrough
      case Event.KEY_LEFT:
        if (currentValue === opt.value.min) return;
        newValue = this._nextValue(currentValue, -1);
        break;
      }

      this.dragging = true;
      this.setValue(newValue, index);

      if (!Prototype.Browser.WebKit) {
        var interval = this._timer ? 0.1 : 1;
        this._timer = arguments.callee.bind(this).delay(interval, event);
      }

      if (!allow) {
        event.stop();
      }
    },

    keyup: function(event) {
      this.dragging = false;
      if (this._timer) {
        window.clearTimeout(this._timer);
        this._timer = null;
      }
      this._updateFinished();

      var handle = event.findElement();
      handle.removeClassName('ui-state-active');
    },

    setValue: function(sliderValue, handleIndex) {
		
      if (!this.activeHandle) {
        this.activeHandle = this.handles[handleIndex || 0];
        this._updateStyles();
      }

      handleIndex = handleIndex ||
       this.activeHandle.retrieve('ui.slider.handle') || 0;

      if (this.initialized && this.restricted) {
        if (handleIndex > 0 && sliderValue < this.values[handleIndex - 1]) {
          sliderValue = this.values[handleIndex - 1];
        }
        if (handleIndex < (this.handles.length - 1) &&
         (sliderValue > this.values[handleIndex + 1])) {
          sliderValue = this.values[handleIndex + 1];
        }
      }

      sliderValue = this._getNearestValue(sliderValue);

      this.values[handleIndex] = sliderValue;

      var prop = (this.orientation === 'vertical') ? 'top' : 'left';
      var css = {};

      css[prop] = this._valueToPx(sliderValue) + 'px';
      this.handles[handleIndex].setStyle(css);

      this._drawRange();

      if (!this.dragging && !this.undoing && !this.initialized)  {
        this._updateFinished();
      }

      if (this.initialized) {
        this.element.fire("ui:slider:value:changing", {
          slider: this,
          values: this.values
        });
        this.options.onSlide(this.values, this);
      }

      return this;
    },

    _getNearestValue: function(value) {
      var range = this.options.value;

      if (value < range.min) value = range.min;
      if (value > range.max) value = range.max;

      if (this._possibleValues) {
        var left, right;
        for (var i = 0; i < this._possibleValues.length; i++) {
          right = this._possibleValues[i];
          if (right === value)  return value;
          if (right > value)    break;
        }
        left = this._possibleValues[i - 1];
        value = value.nearer(left, right);
      }

      return value;
    },

    _valueToPx: function(value) {
      var range = this.options.value;
      var pixels = (this._trackLength - this._handleLength ) /
       (range.max - range.min);
      pixels *= (value - range.min);

 //     if (this.orientation === 'vertical') {
//        pixels = (this._trackLength - pixels) - this._handleLength;
//      } else {
//      }

      return Math.round(pixels);
    },

    mousedown: function(event) {
      var opt = this.options;
      if (!event.isLeftClick() || opt.disabled) return;
      event.stop();

      this._oldValues = this.values.clone();

      this.active = true;
      var target  = event.findElement();
      var pointer = event.pointer();

      if (target === this.element) {
        var trackOffset = this.element.cumulativeOffset();

        var newPosition = {
          x: Math.round(pointer.x - trackOffset.left - this._handleLength / 2 - this._trackMargin),
          y: Math.round(pointer.y - trackOffset.top - this._handleLength / 2 - this._trackMargin)
        };

        this.setValue(this._pxToValue(newPosition));
		

        this.activeHandle = this.activeHandle || this.handles.first();
        handle = this.activeHandle;
        this._updateStyles();
        this._offsets = {x: 0, y: 0};
      } else {
        handle = event.findElement('.ui-slider-handle');
        if (!handle) return;

        this.activeHandle = handle;
        this._updateStyles();
        var handleOffset = handle.cumulativeOffset();
        this._offsets = {
          x: pointer.x - (handleOffset.left + this._handleLength / 2),
          y: pointer.y - (handleOffset.top + this._handleLength / 2)
        };
      }

      document.observe('mousemove', this.observers.mousemove);
      document.observe('mouseup',   this.observers.mouseup);
    },

    mouseup: function(event) {
      if (this.active && this.dragging) {
        this._updateFinished();
        event.stop();
      }

      this.active = this.dragging = false;

      this.activeHandle = null;
      this._updateStyles();

      document.stopObserving('mousemove', this.observers.mousemove);
      document.stopObserving('mouseup',   this.observers.mouseup);
    },


    mousemove: function(event) {
      if (!this.active) return;
      event.stop();

      this.dragging = true;
      this._draw(event);

      if (Prototype.Browser.WebKit) window.scrollBy(0, 0);
    },

    rangeMouseDown: function(event) {
      var pointer = event.pointer();

      var trackOffset = this.element.cumulativeOffset();

      var newPosition = {
        x: Math.round(pointer.x - trackOffset.left),
        y: Math.round(pointer.y - trackOffset.top)
      };

      this._rangeInitialValues = this.values.clone();
      this._rangePseudoValue = this._pxToValue(newPosition);

      document.observe('mousemove', this.observers.rangeMouseMove);
      document.observe('mouseup',   this.observers.rangeMouseUp);
    },

    rangeMouseMove: function(event) {
      this.dragging = true;
      event.stop();

      var opt = this.options;

      var pointer = event.pointer();
      var trackOffset = this.element.cumulativeOffset();

      var newPosition = {
        x: Math.round(pointer.x - trackOffset.left),
        y: Math.round(pointer.y - trackOffset.top)
      };

      var value = this._pxToValue(newPosition);
      var valueDelta = value - this._rangePseudoValue;
      var newValues = this._rangeInitialValues.map(
       function(v) { return v + valueDelta; });

      if (newValues[0] < opt.value.min) {
        valueDelta = opt.value.min - this._rangeInitialValues[0];
        newValues = this._rangeInitialValues.map(
         function(v) { return v + valueDelta; });
      } else if (newValues[1] > opt.value.max) {
        valueDelta = opt.value.max - this._rangeInitialValues[1];
        newValues = this._rangeInitialValues.map(
         function(v) { return v + valueDelta; });
      }

      newValues.each(this.setValue, this);
    },

    rangeMouseUp: function(event) {
      this.dragging = false;

      document.stopObserving('mousemove', this.observers.rangeMouseMove);
      document.stopObserving('mouseup',   this.observers.rangeMouseUp);

      this._updateFinished();
    },


    _draw: function(event) {
      var pointer = event.pointer();
      var trackOffset = this.element.cumulativeOffset();

      pointer.x -= (this._offsets.x + trackOffset.left + this._handleLength / 2 + this._trackMargin);
      pointer.y -= (this._offsets.y + trackOffset.top + this._handleLength / 2 + this._trackMargin);

      this.setValue(this._pxToValue(pointer));
    },

    _pxToValue: function(offsets) {
      var opt = this.options;
      var offset = (this.orientation === 'horizontal') ?
       offsets.x : offsets.y;

      var value = ((offset / (this._trackLength - this._handleLength) *
       (opt.value.max - opt.value.min)) + opt.value.min);

 //     if (this.orientation === 'vertical') {
//        value = opt.value.max - (value - opt.value.min);
//      }

      return value;
    },

    undo: function() {
      if (!this._oldValues) return;
      this.values = this._oldValues.clone();

      this.undoing = true;
      this._oldValues.each(this.setValue, this);
      this.undoing = false;
    },

    _updateFinished: function() {
      var result = this.element.fire("ui:slider:value:changed", {
        slider: this,
        values: this.values
      });

      if (result.stopped) {
        this.undo();
        return;
      }

      this.activeHandle = null;
      this._updateStyles();

      this.options.onChange(this.values, this);
    },

    _updateStyles: function() {
      UI.removeClassNames(this.handles, 'ui-state-active');
      if (this.activeHandle) {
        this.activeHandle.addClassName('ui-state-active');
      }
    },

    _drawRange: function() {
      if (!this.range) return;
      var values = this.values, pixels = values.map(this._valueToPx, this);

      if (this.orientation === 'vertical') {
        this.range.setStyle({
          top: pixels[1] + 'px',
          height: (pixels[0] - pixels[1]) + 'px'
        });
      } else {
        this.range.setStyle({
          left:   pixels[0] + 'px',
          width:  (pixels[1] - pixels[0]) + 'px'
        });
      }
    },

    focus: function(event) {
      if (this.options.disabled) return;

      var handle = event.findElement();

      this.element.select('.ui-state-focus').invoke(
       'removeClassName', 'ui-state-focus');

      handle.addClassName('ui-state-focus');
    },

    blur: function(event) {
      event.findElement().removeClassName('ui-state-focus');
    }
  });

  Object.extend(UI.Slider, {
    DEFAULT_OPTIONS: {
      range: false,
      disabled: false,
      value: { min: 0, max: 100, initial: 0, step: null },
      possibleValues: null,
      orientation: 'horizontal',

      onSlide:  Prototype.emptyFunction,
      onChange: Prototype.emptyFunction
    }
  });
})(S2.UI);
/*
 * Shadowbox.js, version 3.0.3
 * http://shadowbox-js.com/
 *
 * Copyright 2007-2010, Michael J. I. Jackson
 * Date: 2010-06-01 15:03:58 +0000
 */
(function(window,undefined){var S={version:"3.0.3"};var ua=navigator.userAgent.toLowerCase();if(ua.indexOf("windows")>-1||ua.indexOf("win32")>-1){S.isWindows=true}else{if(ua.indexOf("macintosh")>-1||ua.indexOf("mac os x")>-1){S.isMac=true}else{if(ua.indexOf("linux")>-1){S.isLinux=true}}}S.isIE=ua.indexOf("msie")>-1;S.isIE6=ua.indexOf("msie 6")>-1;S.isIE7=ua.indexOf("msie 7")>-1;S.isGecko=ua.indexOf("gecko")>-1&&ua.indexOf("safari")==-1;S.isWebKit=ua.indexOf("applewebkit/")>-1;var inlineId=/#(.+)$/,galleryName=/^(light|shadow)box\[(.*?)\]/i,inlineParam=/\s*([a-z_]*?)\s*=\s*(.+)\s*/,fileExtension=/[0-9a-z]+$/i,scriptPath=/(.+\/)shadowbox\.js/i;var open=false,initialized=false,lastOptions={},slideDelay=0,slideStart,slideTimer;S.current=-1;S.dimensions=null;S.ease=function(state){return 1+Math.pow(state-1,3)};S.errorInfo={fla:{name:"Flash",url:"http://www.adobe.com/products/flashplayer/"},qt:{name:"QuickTime",url:"http://www.apple.com/quicktime/download/"},wmp:{name:"Windows Media Player",url:"http://www.microsoft.com/windows/windowsmedia/"},f4m:{name:"Flip4Mac",url:"http://www.flip4mac.com/wmv_download.htm"}};S.gallery=[];S.onReady=noop;S.path=null;S.player=null;S.playerId="sb-player";S.options={animate:true,animateFade:true,autoplayMovies:true,continuous:false,enableKeys:true,flashParams:{bgcolor:"#000000",allowfullscreen:true},flashVars:{},flashVersion:"9.0.115",handleOversize:"resize",handleUnsupported:"link",onChange:noop,onClose:noop,onFinish:noop,onOpen:noop,showMovieControls:true,skipSetup:false,slideshowDelay:0,viewportPadding:20};S.getCurrent=function(){return S.current>-1?S.gallery[S.current]:null};S.hasNext=function(){return S.gallery.length>1&&(S.current!=S.gallery.length-1||S.options.continuous)};S.isOpen=function(){return open};S.isPaused=function(){return slideTimer=="pause"};S.applyOptions=function(options){lastOptions=apply({},S.options);apply(S.options,options)};S.revertOptions=function(){apply(S.options,lastOptions)};S.init=function(options,callback){if(initialized){return}initialized=true;if(S.skin.options){apply(S.options,S.skin.options)}if(options){apply(S.options,options)}if(!S.path){var path,scripts=document.getElementsByTagName("script");for(var i=0,len=scripts.length;i<len;++i){path=scriptPath.exec(scripts[i].src);if(path){S.path=path[1];break}}}if(callback){S.onReady=callback}bindLoad()};S.open=function(obj){if(open){return}var gc=S.makeGallery(obj);S.gallery=gc[0];S.current=gc[1];obj=S.getCurrent();if(obj==null){return}S.applyOptions(obj.options||{});filterGallery();if(S.gallery.length){obj=S.getCurrent();if(S.options.onOpen(obj)===false){return}open=true;S.skin.onOpen(obj,load)}};S.close=function(){if(!open){return}open=false;if(S.player){S.player.remove();S.player=null}if(typeof slideTimer=="number"){clearTimeout(slideTimer);slideTimer=null}slideDelay=0;listenKeys(false);S.options.onClose(S.getCurrent());S.skin.onClose();S.revertOptions()};S.play=function(){if(!S.hasNext()){return}if(!slideDelay){slideDelay=S.options.slideshowDelay*1000}if(slideDelay){slideStart=now();slideTimer=setTimeout(function(){slideDelay=slideStart=0;S.next()},slideDelay);if(S.skin.onPlay){S.skin.onPlay()}}};S.pause=function(){if(typeof slideTimer!="number"){return}slideDelay=Math.max(0,slideDelay-(now()-slideStart));if(slideDelay){clearTimeout(slideTimer);slideTimer="pause";if(S.skin.onPause){S.skin.onPause()}}};S.change=function(index){if(!(index in S.gallery)){if(S.options.continuous){index=(index<0?S.gallery.length+index:0);if(!(index in S.gallery)){return}}else{return}}S.current=index;if(typeof slideTimer=="number"){clearTimeout(slideTimer);slideTimer=null;slideDelay=slideStart=0}S.options.onChange(S.getCurrent());load(true)};S.next=function(){S.change(S.current+1)};S.previous=function(){S.change(S.current-1)};S.setDimensions=function(height,width,maxHeight,maxWidth,topBottom,leftRight,padding,preserveAspect){var originalHeight=height,originalWidth=width;var extraHeight=2*padding+topBottom;if(height+extraHeight>maxHeight){height=maxHeight-extraHeight}var extraWidth=2*padding+leftRight;if(width+extraWidth>maxWidth){width=maxWidth-extraWidth}var changeHeight=(originalHeight-height)/originalHeight,changeWidth=(originalWidth-width)/originalWidth,oversized=(changeHeight>0||changeWidth>0);if(preserveAspect&&oversized){if(changeHeight>changeWidth){width=Math.round((originalWidth/originalHeight)*height)}else{if(changeWidth>changeHeight){height=Math.round((originalHeight/originalWidth)*width)}}}S.dimensions={height:height+topBottom,width:width+leftRight,innerHeight:height,innerWidth:width,top:Math.floor((maxHeight-(height+extraHeight))/2+padding),left:Math.floor((maxWidth-(width+extraWidth))/2+padding),oversized:oversized};return S.dimensions};S.makeGallery=function(obj){var gallery=[],current=-1;if(typeof obj=="string"){obj=[obj]}if(typeof obj.length=="number"){each(obj,function(i,o){if(o.content){gallery[i]=o}else{gallery[i]={content:o}}});current=0}else{if(obj.tagName){var cacheObj=S.getCache(obj);obj=cacheObj?cacheObj:S.makeObject(obj)}if(obj.gallery){gallery=[];var o;for(var key in S.cache){o=S.cache[key];if(o.gallery&&o.gallery==obj.gallery){if(current==-1&&o.content==obj.content){current=gallery.length}gallery.push(o)}}if(current==-1){gallery.unshift(obj);current=0}}else{gallery=[obj];current=0}}each(gallery,function(i,o){gallery[i]=apply({},o)});return[gallery,current]};S.makeObject=function(link,options){var obj={content:link.href,title:link.getAttribute("title")||"",link:link};if(options){options=apply({},options);each(["player","title","height","width","gallery"],function(i,o){if(typeof options[o]!="undefined"){obj[o]=options[o];delete options[o]}});obj.options=options}else{obj.options={}}if(!obj.player){obj.player=S.getPlayer(obj.content)}var rel=link.getAttribute("rel");if(rel){var match=rel.match(galleryName);if(match){obj.gallery=escape(match[2])}each(rel.split(";"),function(i,p){match=p.match(inlineParam);if(match){obj[match[1]]=match[2]}})}return obj};S.getPlayer=function(content){if(content.indexOf("#")>-1&&content.indexOf(document.location.href)==0){return"inline"}var q=content.indexOf("?");if(q>-1){content=content.substring(0,q)}var ext,m=content.match(fileExtension);if(m){ext=m[0].toLowerCase()}if(ext){if(S.img&&S.img.ext.indexOf(ext)>-1){return"img"}if(S.swf&&S.swf.ext.indexOf(ext)>-1){return"swf"}if(S.flv&&S.flv.ext.indexOf(ext)>-1){return"flv"}if(S.qt&&S.qt.ext.indexOf(ext)>-1){if(S.wmp&&S.wmp.ext.indexOf(ext)>-1){return"qtwmp"}else{return"qt"}}if(S.wmp&&S.wmp.ext.indexOf(ext)>-1){return"wmp"}}return"iframe"};function filterGallery(){var err=S.errorInfo,plugins=S.plugins,obj,remove,needed,m,format,replace,inlineEl,flashVersion;for(var i=0;i<S.gallery.length;++i){obj=S.gallery[i];remove=false;needed=null;switch(obj.player){case"flv":case"swf":if(!plugins.fla){needed="fla"}break;case"qt":if(!plugins.qt){needed="qt"}break;case"wmp":if(S.isMac){if(plugins.qt&&plugins.f4m){obj.player="qt"}else{needed="qtf4m"}}else{if(!plugins.wmp){needed="wmp"}}break;case"qtwmp":if(plugins.qt){obj.player="qt"}else{if(plugins.wmp){obj.player="wmp"}else{needed="qtwmp"}}break}if(needed){if(S.options.handleUnsupported=="link"){switch(needed){case"qtf4m":format="shared";replace=[err.qt.url,err.qt.name,err.f4m.url,err.f4m.name];break;case"qtwmp":format="either";replace=[err.qt.url,err.qt.name,err.wmp.url,err.wmp.name];break;default:format="single";replace=[err[needed].url,err[needed].name]}obj.player="html";obj.content='<div 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slideTimer=="number"?S.pause:S.play;break}if(handler){preventDefault(e);handler()}}function load(changing){listenKeys(false);var obj=S.getCurrent();var player=(obj.player=="inline"?"html":obj.player);if(typeof S[player]!="function"){throw"unknown player "+player}if(changing){S.player.remove();S.revertOptions();S.applyOptions(obj.options||{})}S.player=new S[player](obj,S.playerId);if(S.gallery.length>1){var next=S.gallery[S.current+1]||S.gallery[0];if(next.player=="img"){var a=new Image();a.src=next.content}var prev=S.gallery[S.current-1]||S.gallery[S.gallery.length-1];if(prev.player=="img"){var b=new Image();b.src=prev.content}}S.skin.onLoad(changing,waitReady)}function waitReady(){if(!open){return}if(typeof S.player.ready!="undefined"){var timer=setInterval(function(){if(open){if(S.player.ready){clearInterval(timer);timer=null;S.skin.onReady(show)}}else{clearInterval(timer);timer=null}},10)}else{S.skin.onReady(show)}}function 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supportsOpacity=true,supportsFixed=true;function checkSupport(){var body=document.body,div=document.createElement("div");supportsOpacity=typeof div.style.opacity==="string";div.style.position="fixed";div.style.margin=0;div.style.top="20px";body.appendChild(div,body.firstChild);supportsFixed=div.offsetTop==20;body.removeChild(div)}S.getStyle=(function(){var opacity=/opacity=([^)]*)/,getComputedStyle=document.defaultView&&document.defaultView.getComputedStyle;return function(el,style){var ret;if(!supportsOpacity&&style=="opacity"&&el.currentStyle){ret=opacity.test(el.currentStyle.filter||"")?(parseFloat(RegExp.$1)/100)+"":"";return ret===""?"1":ret}if(getComputedStyle){var computedStyle=getComputedStyle(el,null);if(computedStyle){ret=computedStyle[style]}if(style=="opacity"&&ret==""){ret="1"}}else{ret=el.currentStyle[style]}return ret}})();S.appendHTML=function(el,html){if(el.insertAdjacentHTML){el.insertAdjacentHTML("BeforeEnd",html)}else{if(el.lastChild){var range=el.ownerDocument.createRange();range.setStartAfter(el.lastChild);var frag=range.createContextualFragment(html);el.appendChild(frag)}else{el.innerHTML=html}}};S.getWindowSize=function(dimension){if(document.compatMode==="CSS1Compat"){return document.documentElement["client"+dimension]}return document.body["client"+dimension]};S.setOpacity=function(el,opacity){var style=el.style;if(supportsOpacity){style.opacity=(opacity==1?"":opacity)}else{style.zoom=1;if(opacity==1){if(typeof style.filter=="string"&&(/alpha/i).test(style.filter)){style.filter=style.filter.replace(/\s*[\w\.]*alpha\([^\)]*\);?/gi,"")}}else{style.filter=(style.filter||"").replace(/\s*[\w\.]*alpha\([^\)]*\)/gi,"")+" alpha(opacity="+(opacity*100)+")"}}};S.clearOpacity=function(el){S.setOpacity(el,1)};var E=Event;function getTarget(e){return E.element(e)}function getPageXY(e){return[E.pointerX(e),E.pointerY(e)]}function preventDefault(e){E.stop(e)}function keyCode(e){return e.keyCode}function addEvent(el,type,handler){E.observe(el,type,handler)}function removeEvent(el,type,handler){E.stopObserving(el,type,handler)}var loaded=false,DOMContentLoaded;if(document.addEventListener){DOMContentLoaded=function(){document.removeEventListener("DOMContentLoaded",DOMContentLoaded,false);S.load()}}else{if(document.attachEvent){DOMContentLoaded=function(){if(document.readyState==="complete"){document.detachEvent("onreadystatechange",DOMContentLoaded);S.load()}}}}function doScrollCheck(){if(loaded){return}try{document.documentElement.doScroll("left")}catch(e){setTimeout(doScrollCheck,1);return}S.load()}function bindLoad(){if(document.readyState==="complete"){return S.load()}if(document.addEventListener){document.addEventListener("DOMContentLoaded",DOMContentLoaded,false);window.addEventListener("load",S.load,false)}else{if(document.attachEvent){document.attachEvent("onreadystatechange",DOMContentLoaded);window.attachEvent("onload",S.load);var topLevel=false;try{topLevel=window.frameElement===null}catch(e){}if(document.documentElement.doScroll&&topLevel){doScrollCheck()}}}}S.load=function(){if(loaded){return}if(!document.body){return setTimeout(S.load,13)}loaded=true;checkSupport();S.onReady();if(!S.options.skipSetup){S.setup()}S.skin.init()};S.plugins={};if(navigator.plugins&&navigator.plugins.length){var names=[];each(navigator.plugins,function(i,p){names.push(p.name)});names=names.join(",");var f4m=names.indexOf("Flip4Mac")>-1;S.plugins={fla:names.indexOf("Shockwave Flash")>-1,qt:names.indexOf("QuickTime")>-1,wmp:!f4m&&names.indexOf("Windows Media")>-1,f4m:f4m}}else{var detectPlugin=function(name){var axo;try{axo=new ActiveXObject(name)}catch(e){}return !!axo};S.plugins={fla:detectPlugin("ShockwaveFlash.ShockwaveFlash"),qt:detectPlugin("QuickTime.QuickTime"),wmp:detectPlugin("wmplayer.ocx"),f4m:false}}var relAttr=/^(light|shadow)box/i,expando="shadowboxCacheKey",cacheKey=1;S.cache={};S.select=function(selector){var links=[];if(!selector){var rel;each(document.getElementsByTagName("a"),function(i,el){rel=el.getAttribute("rel");if(rel&&relAttr.test(rel)){links.push(el)}})}else{var length=selector.length;if(length){if(typeof selector=="string"){if(S.find){links=S.find(selector)}}else{if(length==2&&typeof selector[0]=="string"&&selector[1].nodeType){if(S.find){links=S.find(selector[0],selector[1])}}else{for(var i=0;i<length;++i){links[i]=selector[i]}}}}else{links.push(selector)}}return links};S.setup=function(selector,options){each(S.select(selector),function(i,link){S.addCache(link,options)})};S.teardown=function(selector){each(S.select(selector),function(i,link){S.removeCache(link)})};S.addCache=function(link,options){var key=link[expando];if(key==undefined){key=cacheKey++;link[expando]=key;addEvent(link,"click",handleClick)}S.cache[key]=S.makeObject(link,options)};S.removeCache=function(link){removeEvent(link,"click",handleClick);delete S.cache[link[expando]];link[expando]=null};S.getCache=function(link){var key=link[expando];return(key in S.cache&&S.cache[key])};S.clearCache=function(){for(var key in S.cache){S.removeCache(S.cache[key].link)}S.cache={}};function handleClick(e){S.open(this);if(S.gallery.length){preventDefault(e)}}
/*
 * SWFObject v2.1 <http://code.google.com/p/swfobject/>
 * Copyright (c) 2007-2008 Geoff Stearns, Michael Williams, and Bobby van der Sluis
 * This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
 *
 * Modified for inclusion in Shadowbox.js
 */
S.flash=(function(){var swfobject=function(){var UNDEF="undefined",OBJECT="object",SHOCKWAVE_FLASH="Shockwave Flash",SHOCKWAVE_FLASH_AX="ShockwaveFlash.ShockwaveFlash",FLASH_MIME_TYPE="application/x-shockwave-flash",EXPRESS_INSTALL_ID="SWFObjectExprInst",win=window,doc=document,nav=navigator,domLoadFnArr=[],regObjArr=[],objIdArr=[],listenersArr=[],script,timer=null,storedAltContent=null,storedAltContentId=null,isDomLoaded=false,isExpressInstallActive=false;var ua=function(){var w3cdom=typeof doc.getElementById!=UNDEF&&typeof doc.getElementsByTagName!=UNDEF&&typeof doc.createElement!=UNDEF,playerVersion=[0,0,0],d=null;if(typeof nav.plugins!=UNDEF&&typeof nav.plugins[SHOCKWAVE_FLASH]==OBJECT){d=nav.plugins[SHOCKWAVE_FLASH].description;if(d&&!(typeof nav.mimeTypes!=UNDEF&&nav.mimeTypes[FLASH_MIME_TYPE]&&!nav.mimeTypes[FLASH_MIME_TYPE].enabledPlugin)){d=d.replace(/^.*\s+(\S+\s+\S+$)/,"$1");playerVersion[0]=parseInt(d.replace(/^(.*)\..*$/,"$1"),10);playerVersion[1]=parseInt(d.replace(/^.*\.(.*)\s.*$/,"$1"),10);playerVersion[2]=/r/.test(d)?parseInt(d.replace(/^.*r(.*)$/,"$1"),10):0}}else{if(typeof win.ActiveXObject!=UNDEF){var a=null,fp6Crash=false;try{a=new ActiveXObject(SHOCKWAVE_FLASH_AX+".7")}catch(e){try{a=new ActiveXObject(SHOCKWAVE_FLASH_AX+".6");playerVersion=[6,0,21];a.AllowScriptAccess="always"}catch(e){if(playerVersion[0]==6){fp6Crash=true}}if(!fp6Crash){try{a=new ActiveXObject(SHOCKWAVE_FLASH_AX)}catch(e){}}}if(!fp6Crash&&a){try{d=a.GetVariable("$version");if(d){d=d.split(" ")[1].split(",");playerVersion=[parseInt(d[0],10),parseInt(d[1],10),parseInt(d[2],10)]}}catch(e){}}}}var u=nav.userAgent.toLowerCase(),p=nav.platform.toLowerCase(),webkit=/webkit/.test(u)?parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,ie=false,windows=p?/win/.test(p):/win/.test(u),mac=p?/mac/.test(p):/mac/.test(u);
/*@cc_on
			ie = true;
			@if (@_win32)
				windows = true;
			@elif (@_mac)
				mac = true;
			@end
		@*/
return{w3cdom:w3cdom,pv:playerVersion,webkit:webkit,ie:ie,win:windows,mac:mac}}();var onDomLoad=function(){if(!ua.w3cdom){return}addDomLoadEvent(main);if(ua.ie&&ua.win){try{doc.write("<script id=__ie_ondomload defer=true src=//:><\/script>");script=getElementById("__ie_ondomload");if(script){addListener(script,"onreadystatechange",checkReadyState)}}catch(e){}}if(ua.webkit&&typeof doc.readyState!=UNDEF){timer=setInterval(function(){if(/loaded|complete/.test(doc.readyState)){callDomLoadFunctions()}},10)}if(typeof doc.addEventListener!=UNDEF){doc.addEventListener("DOMContentLoaded",callDomLoadFunctions,null)}addLoadEvent(callDomLoadFunctions)}();function checkReadyState(){if(script.readyState=="complete"){script.parentNode.removeChild(script);callDomLoadFunctions()}}function callDomLoadFunctions(){if(isDomLoaded){return}if(ua.ie&&ua.win){var s=createElement("span");try{var t=doc.getElementsByTagName("body")[0].appendChild(s);t.parentNode.removeChild(t)}catch(e){return}}isDomLoaded=true;if(timer){clearInterval(timer);timer=null}var dl=domLoadFnArr.length;for(var i=0;i<dl;i++){domLoadFnArr[i]()}}function addDomLoadEvent(fn){if(isDomLoaded){fn()}else{domLoadFnArr[domLoadFnArr.length]=fn}}function addLoadEvent(fn){if(typeof win.addEventListener!=UNDEF){win.addEventListener("load",fn,false)}else{if(typeof doc.addEventListener!=UNDEF){doc.addEventListener("load",fn,false)}else{if(typeof win.attachEvent!=UNDEF){addListener(win,"onload",fn)}else{if(typeof win.onload=="function"){var fnOld=win.onload;win.onload=function(){fnOld();fn()}}else{win.onload=fn}}}}}function main(){var rl=regObjArr.length;for(var i=0;i<rl;i++){var id=regObjArr[i].id;if(ua.pv[0]>0){var obj=getElementById(id);if(obj){regObjArr[i].width=obj.getAttribute("width")?obj.getAttribute("width"):"0";regObjArr[i].height=obj.getAttribute("height")?obj.getAttribute("height"):"0";if(hasPlayerVersion(regObjArr[i].swfVersion)){if(ua.webkit&&ua.webkit<312){fixParams(obj)}setVisibility(id,true)}else{if(regObjArr[i].expressInstall&&!isExpressInstallActive&&hasPlayerVersion("6.0.65")&&(ua.win||ua.mac)){showExpressInstall(regObjArr[i])}else{displayAltContent(obj)}}}}else{setVisibility(id,true)}}}function fixParams(obj){var nestedObj=obj.getElementsByTagName(OBJECT)[0];if(nestedObj){var e=createElement("embed"),a=nestedObj.attributes;if(a){var al=a.length;for(var i=0;i<al;i++){if(a[i].nodeName=="DATA"){e.setAttribute("src",a[i].nodeValue)}else{e.setAttribute(a[i].nodeName,a[i].nodeValue)}}}var c=nestedObj.childNodes;if(c){var cl=c.length;for(var j=0;j<cl;j++){if(c[j].nodeType==1&&c[j].nodeName=="PARAM"){e.setAttribute(c[j].getAttribute("name"),c[j].getAttribute("value"))}}}obj.parentNode.replaceChild(e,obj)}}function showExpressInstall(regObj){isExpressInstallActive=true;var obj=getElementById(regObj.id);if(obj){if(regObj.altContentId){var ac=getElementById(regObj.altContentId);if(ac){storedAltContent=ac;storedAltContentId=regObj.altContentId}}else{storedAltContent=abstractAltContent(obj)}if(!(/%$/.test(regObj.width))&&parseInt(regObj.width,10)<310){regObj.width="310"}if(!(/%$/.test(regObj.height))&&parseInt(regObj.height,10)<137){regObj.height="137"}doc.title=doc.title.slice(0,47)+" - Flash Player Installation";var pt=ua.ie&&ua.win?"ActiveX":"PlugIn",dt=doc.title,fv="MMredirectURL="+win.location+"&MMplayerType="+pt+"&MMdoctitle="+dt,replaceId=regObj.id;if(ua.ie&&ua.win&&obj.readyState!=4){var newObj=createElement("div");replaceId+="SWFObjectNew";newObj.setAttribute("id",replaceId);obj.parentNode.insertBefore(newObj,obj);obj.style.display="none";var fn=function(){obj.parentNode.removeChild(obj)};addListener(win,"onload",fn)}createSWF({data:regObj.expressInstall,id:EXPRESS_INSTALL_ID,width:regObj.width,height:regObj.height},{flashvars:fv},replaceId)}}function displayAltContent(obj){if(ua.ie&&ua.win&&obj.readyState!=4){var el=createElement("div");obj.parentNode.insertBefore(el,obj);el.parentNode.replaceChild(abstractAltContent(obj),el);obj.style.display="none";var fn=function(){obj.parentNode.removeChild(obj)};addListener(win,"onload",fn)}else{obj.parentNode.replaceChild(abstractAltContent(obj),obj)}}function abstractAltContent(obj){var ac=createElement("div");if(ua.win&&ua.ie){ac.innerHTML=obj.innerHTML}else{var nestedObj=obj.getElementsByTagName(OBJECT)[0];if(nestedObj){var c=nestedObj.childNodes;if(c){var cl=c.length;for(var i=0;i<cl;i++){if(!(c[i].nodeType==1&&c[i].nodeName=="PARAM")&&!(c[i].nodeType==8)){ac.appendChild(c[i].cloneNode(true))}}}}}return ac}function createSWF(attObj,parObj,id){var r,el=getElementById(id);if(el){if(typeof attObj.id==UNDEF){attObj.id=id}if(ua.ie&&ua.win){var att="";for(var i in attObj){if(attObj[i]!=Object.prototype[i]){if(i.toLowerCase()=="data"){parObj.movie=attObj[i]}else{if(i.toLowerCase()=="styleclass"){att+=' class="'+attObj[i]+'"'}else{if(i.toLowerCase()!="classid"){att+=" "+i+'="'+attObj[i]+'"'}}}}}var par="";for(var j in parObj){if(parObj[j]!=Object.prototype[j]){par+='<param name="'+j+'" value="'+parObj[j]+'" />'}}el.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+att+">"+par+"</object>";objIdArr[objIdArr.length]=attObj.id;r=getElementById(attObj.id)}else{if(ua.webkit&&ua.webkit<312){var e=createElement("embed");e.setAttribute("type",FLASH_MIME_TYPE);for(var k in attObj){if(attObj[k]!=Object.prototype[k]){if(k.toLowerCase()=="data"){e.setAttribute("src",attObj[k])}else{if(k.toLowerCase()=="styleclass"){e.setAttribute("class",attObj[k])}else{if(k.toLowerCase()!="classid"){e.setAttribute(k,attObj[k])}}}}}for(var l in parObj){if(parObj[l]!=Object.prototype[l]){if(l.toLowerCase()!="movie"){e.setAttribute(l,parObj[l])}}}el.parentNode.replaceChild(e,el);r=e}else{var o=createElement(OBJECT);o.setAttribute("type",FLASH_MIME_TYPE);for(var m in attObj){if(attObj[m]!=Object.prototype[m]){if(m.toLowerCase()=="styleclass"){o.setAttribute("class",attObj[m])}else{if(m.toLowerCase()!="classid"){o.setAttribute(m,attObj[m])}}}}for(var n in parObj){if(parObj[n]!=Object.prototype[n]&&n.toLowerCase()!="movie"){createObjParam(o,n,parObj[n])}}el.parentNode.replaceChild(o,el);r=o}}}return r}function createObjParam(el,pName,pValue){var p=createElement("param");p.setAttribute("name",pName);p.setAttribute("value",pValue);el.appendChild(p)}function removeSWF(id){var obj=getElementById(id);if(obj&&(obj.nodeName=="OBJECT"||obj.nodeName=="EMBED")){if(ua.ie&&ua.win){if(obj.readyState==4){removeObjectInIE(id)}else{win.attachEvent("onload",function(){removeObjectInIE(id)})}}else{obj.parentNode.removeChild(obj)}}}function removeObjectInIE(id){var obj=getElementById(id);if(obj){for(var i in obj){if(typeof obj[i]=="function"){obj[i]=null}}obj.parentNode.removeChild(obj)}}function getElementById(id){var el=null;try{el=doc.getElementById(id)}catch(e){}return el}function createElement(el){return doc.createElement(el)}function addListener(target,eventType,fn){target.attachEvent(eventType,fn);listenersArr[listenersArr.length]=[target,eventType,fn]}function hasPlayerVersion(rv){var pv=ua.pv,v=rv.split(".");v[0]=parseInt(v[0],10);v[1]=parseInt(v[1],10)||0;v[2]=parseInt(v[2],10)||0;return(pv[0]>v[0]||(pv[0]==v[0]&&pv[1]>v[1])||(pv[0]==v[0]&&pv[1]==v[1]&&pv[2]>=v[2]))?true:false}function createCSS(sel,decl){if(ua.ie&&ua.mac){return}var h=doc.getElementsByTagName("head")[0],s=createElement("style");s.setAttribute("type","text/css");s.setAttribute("media","screen");if(!(ua.ie&&ua.win)&&typeof doc.createTextNode!=UNDEF){s.appendChild(doc.createTextNode(sel+" {"+decl+"}"))}h.appendChild(s);if(ua.ie&&ua.win&&typeof doc.styleSheets!=UNDEF&&doc.styleSheets.length>0){var ls=doc.styleSheets[doc.styleSheets.length-1];if(typeof ls.addRule==OBJECT){ls.addRule(sel,decl)}}}function setVisibility(id,isVisible){var v=isVisible?"visible":"hidden";if(isDomLoaded&&getElementById(id)){getElementById(id).style.visibility=v}else{createCSS("#"+id,"visibility:"+v)}}function urlEncodeIfNecessary(s){var regex=/[\\\"<>\.;]/;var hasBadChars=regex.exec(s)!=null;return hasBadChars?encodeURIComponent(s):s}var cleanup=function(){if(ua.ie&&ua.win){window.attachEvent("onunload",function(){var ll=listenersArr.length;for(var i=0;i<ll;i++){listenersArr[i][0].detachEvent(listenersArr[i][1],listenersArr[i][2])}var il=objIdArr.length;for(var j=0;j<il;j++){removeSWF(objIdArr[j])}for(var k in ua){ua[k]=null}ua=null;for(var l in swfobject){swfobject[l]=null}swfobject=null})}}();return{registerObject:function(objectIdStr,swfVersionStr,xiSwfUrlStr){if(!ua.w3cdom||!objectIdStr||!swfVersionStr){return}var regObj={};regObj.id=objectIdStr;regObj.swfVersion=swfVersionStr;regObj.expressInstall=xiSwfUrlStr?xiSwfUrlStr:false;regObjArr[regObjArr.length]=regObj;setVisibility(objectIdStr,false)},getObjectById:function(objectIdStr){var r=null;if(ua.w3cdom){var o=getElementById(objectIdStr);if(o){var n=o.getElementsByTagName(OBJECT)[0];if(!n||(n&&typeof o.SetVariable!=UNDEF)){r=o}else{if(typeof n.SetVariable!=UNDEF){r=n}}}}return r},embedSWF:function(swfUrlStr,replaceElemIdStr,widthStr,heightStr,swfVersionStr,xiSwfUrlStr,flashvarsObj,parObj,attObj){if(!ua.w3cdom||!swfUrlStr||!replaceElemIdStr||!widthStr||!heightStr||!swfVersionStr){return}widthStr+="";heightStr+="";if(hasPlayerVersion(swfVersionStr)){setVisibility(replaceElemIdStr,false);var att={};if(attObj&&typeof attObj===OBJECT){for(var i in attObj){if(attObj[i]!=Object.prototype[i]){att[i]=attObj[i]}}}att.data=swfUrlStr;att.width=widthStr;att.height=heightStr;var par={};if(parObj&&typeof parObj===OBJECT){for(var j in parObj){if(parObj[j]!=Object.prototype[j]){par[j]=parObj[j]}}}if(flashvarsObj&&typeof flashvarsObj===OBJECT){for(var k in flashvarsObj){if(flashvarsObj[k]!=Object.prototype[k]){if(typeof par.flashvars!=UNDEF){par.flashvars+="&"+k+"="+flashvarsObj[k]}else{par.flashvars=k+"="+flashvarsObj[k]}}}}addDomLoadEvent(function(){createSWF(att,par,replaceElemIdStr);if(att.id==replaceElemIdStr){setVisibility(replaceElemIdStr,true)}})}else{if(xiSwfUrlStr&&!isExpressInstallActive&&hasPlayerVersion("6.0.65")&&(ua.win||ua.mac)){isExpressInstallActive=true;setVisibility(replaceElemIdStr,false);addDomLoadEvent(function(){var regObj={};regObj.id=regObj.altContentId=replaceElemIdStr;regObj.width=widthStr;regObj.height=heightStr;regObj.expressInstall=xiSwfUrlStr;showExpressInstall(regObj)})}}},getFlashPlayerVersion:function(){return{major:ua.pv[0],minor:ua.pv[1],release:ua.pv[2]}},hasFlashPlayerVersion:hasPlayerVersion,createSWF:function(attObj,parObj,replaceElemIdStr){if(ua.w3cdom){return createSWF(attObj,parObj,replaceElemIdStr)}else{return undefined}},removeSWF:function(objElemIdStr){if(ua.w3cdom){removeSWF(objElemIdStr)}},createCSS:function(sel,decl){if(ua.w3cdom){createCSS(sel,decl)}},addDomLoadEvent:addDomLoadEvent,addLoadEvent:addLoadEvent,getQueryParamValue:function(param){var q=doc.location.search||doc.location.hash;if(param==null){return urlEncodeIfNecessary(q)}if(q){var pairs=q.substring(1).split("&");for(var i=0;i<pairs.length;i++){if(pairs[i].substring(0,pairs[i].indexOf("="))==param){return urlEncodeIfNecessary(pairs[i].substring((pairs[i].indexOf("=")+1)))}}}return""},expressInstallCallback:function(){if(isExpressInstallActive&&storedAltContent){var obj=getElementById(EXPRESS_INSTALL_ID);if(obj){obj.parentNode.replaceChild(storedAltContent,obj);if(storedAltContentId){setVisibility(storedAltContentId,true);if(ua.ie&&ua.win){storedAltContent.style.display="block"}}storedAltContent=null;storedAltContentId=null;isExpressInstallActive=false}}}}}();return swfobject})();S.lang={code:"it",of:"di",loading:"in caricamento",cancel:"Annulla",next:"Avanti",previous:"Indietro",play:"Play",pause:"Pausa",close:"Chiudi",errors:{single:'È necessario installare il plugin <a href="{0}">{1}</a> per poter vedere questo contenuto.',shared:'È necessario installare i plugin <a href="{0}">{1}</a> e <a href="{2}">{3}</a> per poter vedere questo contenuto.',either:'È necessario installare o il plugin <a href="{0}">{1}</a> o <a href="{2}">{3}</a> per poter vedere questo contenuto.'}};var pre,proxyId="sb-drag-proxy",dragData,dragProxy,dragTarget;function resetDrag(){dragData={x:0,y:0,startX:null,startY:null}}function updateProxy(){var dims=S.dimensions;apply(dragProxy.style,{height:dims.innerHeight+"px",width:dims.innerWidth+"px"})}function enableDrag(){resetDrag();var style=["position:absolute","cursor:"+(S.isGecko?"-moz-grab":"move"),"background-color:"+(S.isIE?"#fff;filter:alpha(opacity=0)":"transparent")].join(";");S.appendHTML(S.skin.body,'<div id="'+proxyId+'" style="'+style+'"></div>');dragProxy=get(proxyId);updateProxy();addEvent(dragProxy,"mousedown",startDrag)}function disableDrag(){if(dragProxy){removeEvent(dragProxy,"mousedown",startDrag);remove(dragProxy);dragProxy=null}dragTarget=null}function startDrag(e){preventDefault(e);var xy=getPageXY(e);dragData.startX=xy[0];dragData.startY=xy[1];dragTarget=get(S.player.id);addEvent(document,"mousemove",positionDrag);addEvent(document,"mouseup",endDrag);if(S.isGecko){dragProxy.style.cursor="-moz-grabbing"}}function positionDrag(e){var player=S.player,dims=S.dimensions,xy=getPageXY(e);var moveX=xy[0]-dragData.startX;dragData.startX+=moveX;dragData.x=Math.max(Math.min(0,dragData.x+moveX),dims.innerWidth-player.width);var moveY=xy[1]-dragData.startY;dragData.startY+=moveY;dragData.y=Math.max(Math.min(0,dragData.y+moveY),dims.innerHeight-player.height);apply(dragTarget.style,{left:dragData.x+"px",top:dragData.y+"px"})}function endDrag(){removeEvent(document,"mousemove",positionDrag);removeEvent(document,"mouseup",endDrag);if(S.isGecko){dragProxy.style.cursor="-moz-grab"}}S.img=function(obj,id){this.obj=obj;this.id=id;this.ready=false;var self=this;pre=new Image();pre.onload=function(){self.height=obj.height?parseInt(obj.height,10):pre.height;self.width=obj.width?parseInt(obj.width,10):pre.width;self.ready=true;pre.onload=null;pre=null};pre.src=obj.content};S.img.ext=["bmp","gif","jpg","jpeg","png"];S.img.prototype={append:function(body,dims){var img=document.createElement("img");img.id=this.id;img.src=this.obj.content;img.style.position="absolute";var height,width;if(dims.oversized&&S.options.handleOversize=="resize"){height=dims.innerHeight;width=dims.innerWidth}else{height=this.height;width=this.width}img.setAttribute("height",height);img.setAttribute("width",width);body.appendChild(img)},remove:function(){var el=get(this.id);if(el){remove(el)}disableDrag();if(pre){pre.onload=null;pre=null}},onLoad:function(){var dims=S.dimensions;if(dims.oversized&&S.options.handleOversize=="drag"){enableDrag()}},onWindowResize:function(){var dims=S.dimensions;switch(S.options.handleOversize){case"resize":var el=get(this.id);el.height=dims.innerHeight;el.width=dims.innerWidth;break;case"drag":if(dragTarget){var top=parseInt(S.getStyle(dragTarget,"top")),left=parseInt(S.getStyle(dragTarget,"left"));if(top+this.height<dims.innerHeight){dragTarget.style.top=dims.innerHeight-this.height+"px"}if(left+this.width<dims.innerWidth){dragTarget.style.left=dims.innerWidth-this.width+"px"}updateProxy()}break}}};S.iframe=function(obj,id){this.obj=obj;this.id=id;var overlay=get("sb-overlay");this.height=obj.height?parseInt(obj.height,10):overlay.offsetHeight;this.width=obj.width?parseInt(obj.width,10):overlay.offsetWidth};S.iframe.prototype={append:function(body,dims){var html='<iframe id="'+this.id+'" name="'+this.id+'" height="100%" width="100%" frameborder="0" marginwidth="0" marginheight="0" style="visibility:hidden" onload="this.style.visibility=\'visible\'" scrolling="auto"';if(S.isIE){html+=' allowtransparency="true"';if(S.isIE6){html+=" src=\"javascript:false;document.write('');\""}}html+="></iframe>";body.innerHTML=html},remove:function(){var el=get(this.id);if(el){remove(el);if(S.isGecko){delete window.frames[this.id]}}},onLoad:function(){var win=S.isIE?get(this.id).contentWindow:window.frames[this.id];win.location.href=this.obj.content}};S.html=function(obj,id){this.obj=obj;this.id=id;this.height=obj.height?parseInt(obj.height,10):300;this.width=obj.width?parseInt(obj.width,10):500};S.html.prototype={append:function(body,dims){var div=document.createElement("div");div.id=this.id;div.className="html";div.innerHTML=this.obj.content;body.appendChild(div)},remove:function(){var el=get(this.id);if(el){remove(el)}}};S.swf=function(obj,id){this.obj=obj;this.id=id;this.height=obj.height?parseInt(obj.height,10):300;this.width=obj.width?parseInt(obj.width,10):300};S.swf.ext=["swf"];S.swf.prototype={append:function(body,dims){var tmp=document.createElement("div");tmp.id=this.id;body.appendChild(tmp);var height=dims.innerHeight,width=dims.innerWidth,swf=this.obj.content,version=S.options.flashVersion,express=S.path+"expressInstall.swf",flashvars=S.options.flashVars,params=S.options.flashParams;S.flash.embedSWF(swf,this.id,width,height,version,express,flashvars,params)},remove:function(){S.flash.expressInstallCallback();S.flash.removeSWF(this.id)},onWindowResize:function(){var dims=S.dimensions,el=get(this.id);el.height=dims.innerHeight;el.width=dims.innerWidth}};var overlayOn=false,visibilityCache=[],pngIds=["sb-nav-close","sb-nav-next","sb-nav-play","sb-nav-pause","sb-nav-previous"],container,overlay,wrapper,doWindowResize=true;function animate(el,property,to,duration,callback){var isOpacity=(property=="opacity"),anim=isOpacity?S.setOpacity:function(el,value){el.style[property]=""+value+"px"};if(duration==0||(!isOpacity&&!S.options.animate)||(isOpacity&&!S.options.animateFade)){anim(el,to);if(callback){callback()}return}var from=parseFloat(S.getStyle(el,property))||0;var delta=to-from;if(delta==0){if(callback){callback()}return}duration*=1000;var begin=now(),ease=S.ease,end=begin+duration,time;var interval=setInterval(function(){time=now();if(time>=end){clearInterval(interval);interval=null;anim(el,to);if(callback){callback()}}else{anim(el,from+ease((time-begin)/duration)*delta)}},10)}function setSize(){container.style.height=S.getWindowSize("Height")+"px";container.style.width=S.getWindowSize("Width")+"px"}function setPosition(){container.style.top=document.documentElement.scrollTop+"px";container.style.left=document.documentElement.scrollLeft+"px"}function toggleTroubleElements(on){if(on){each(visibilityCache,function(i,el){el[0].style.visibility=el[1]||""})}else{visibilityCache=[];each(S.options.troubleElements,function(i,tag){each(document.getElementsByTagName(tag),function(j,el){visibilityCache.push([el,el.style.visibility]);el.style.visibility="hidden"})})}}function toggleNav(id,on){var el=get("sb-nav-"+id);if(el){el.style.display=on?"":"none"}}function toggleLoading(on,callback){var loading=get("sb-loading"),playerName=S.getCurrent().player,anim=(playerName=="img"||playerName=="html");if(on){S.setOpacity(loading,0);loading.style.display="block";var wrapped=function(){S.clearOpacity(loading);if(callback){callback()}};if(anim){animate(loading,"opacity",1,S.options.fadeDuration,wrapped)}else{wrapped()}}else{var wrapped=function(){loading.style.display="none";S.clearOpacity(loading);if(callback){callback()}};if(anim){animate(loading,"opacity",0,S.options.fadeDuration,wrapped)}else{wrapped()}}}function buildBars(callback){var obj=S.getCurrent();get("sb-title-inner").innerHTML=obj.title||"";var close,next,play,pause,previous;if(S.options.displayNav){close=true;var len=S.gallery.length;if(len>1){if(S.options.continuous){next=previous=true}else{next=(len-1)>S.current;previous=S.current>0}}if(S.options.slideshowDelay>0&&S.hasNext()){pause=!S.isPaused();play=!pause}}else{close=next=play=pause=previous=false}toggleNav("close",close);toggleNav("next",next);toggleNav("play",play);toggleNav("pause",pause);toggleNav("previous",previous);var counter="";if(S.options.displayCounter&&S.gallery.length>1){var len=S.gallery.length;if(S.options.counterType=="skip"){var i=0,end=len,limit=parseInt(S.options.counterLimit)||0;if(limit<len&&limit>2){var h=Math.floor(limit/2);i=S.current-h;if(i<0){i+=len}end=S.current+(limit-h);if(end>len){end-=len}}while(i!=end){if(i==len){i=0}counter+='<a onclick="Shadowbox.change('+i+');"';if(i==S.current){counter+=' class="sb-counter-current"'}counter+=">"+(++i)+"</a>"}}else{counter=[S.current+1,S.lang.of,len].join(" ")}}get("sb-counter").innerHTML=counter;callback()}function showBars(callback){var titleInner=get("sb-title-inner"),infoInner=get("sb-info-inner"),duration=0.35;titleInner.style.visibility=infoInner.style.visibility="";if(titleInner.innerHTML!=""){animate(titleInner,"marginTop",0,duration)}animate(infoInner,"marginTop",0,duration,callback)}function hideBars(anim,callback){var title=get("sb-title"),info=get("sb-info"),titleHeight=title.offsetHeight,infoHeight=info.offsetHeight,titleInner=get("sb-title-inner"),infoInner=get("sb-info-inner"),duration=(anim?0.35:0);animate(titleInner,"marginTop",titleHeight,duration);animate(infoInner,"marginTop",infoHeight*-1,duration,function(){titleInner.style.visibility=infoInner.style.visibility="hidden";callback()})}function adjustHeight(height,top,anim,callback){var wrapperInner=get("sb-wrapper-inner"),duration=(anim?S.options.resizeDuration:0);animate(wrapper,"top",top,duration);animate(wrapperInner,"height",height,duration,callback)}function adjustWidth(width,left,anim,callback){var duration=(anim?S.options.resizeDuration:0);animate(wrapper,"left",left,duration);animate(wrapper,"width",width,duration,callback)}function setDimensions(height,width){var bodyInner=get("sb-body-inner"),height=parseInt(height),width=parseInt(width),topBottom=wrapper.offsetHeight-bodyInner.offsetHeight,leftRight=wrapper.offsetWidth-bodyInner.offsetWidth,maxHeight=overlay.offsetHeight,maxWidth=overlay.offsetWidth,padding=parseInt(S.options.viewportPadding)||20,preserveAspect=(S.player&&S.options.handleOversize!="drag");return S.setDimensions(height,width,maxHeight,maxWidth,topBottom,leftRight,padding,preserveAspect)}var K={};K.markup='<div id="sb-container"><div id="sb-overlay"></div><div id="sb-wrapper"><div id="sb-title"><div id="sb-title-inner"></div></div><div id="sb-wrapper-inner"><div id="sb-body"><div id="sb-body-inner"></div><div id="sb-loading"><div id="sb-loading-inner"><span>{loading}</span></div></div></div></div><div id="sb-info"><div id="sb-info-inner"><div id="sb-counter"></div><div id="sb-nav"><a id="sb-nav-close" title="{close}" onclick="Shadowbox.close()"></a><a id="sb-nav-next" title="{next}" onclick="Shadowbox.next()"></a><a id="sb-nav-play" title="{play}" onclick="Shadowbox.play()"></a><a id="sb-nav-pause" title="{pause}" onclick="Shadowbox.pause()"></a><a id="sb-nav-previous" title="{previous}" onclick="Shadowbox.previous()"></a></div></div></div></div></div>';K.options={animSequence:"sync",counterLimit:10,counterType:"default",displayCounter:true,displayNav:true,fadeDuration:0.35,initialHeight:160,initialWidth:320,modal:false,overlayColor:"#000",overlayOpacity:0.5,resizeDuration:0.35,showOverlay:true,troubleElements:["select","object","embed","canvas"]};K.init=function(){S.appendHTML(document.body,sprintf(K.markup,S.lang));K.body=get("sb-body-inner");container=get("sb-container");overlay=get("sb-overlay");wrapper=get("sb-wrapper");if(!supportsFixed){container.style.position="absolute"}if(!supportsOpacity){var el,m,re=/url\("(.*\.png)"\)/;each(pngIds,function(i,id){el=get(id);if(el){m=S.getStyle(el,"backgroundImage").match(re);if(m){el.style.backgroundImage="none";el.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true,src="+m[1]+",sizingMethod=scale);"}}})}var timer;addEvent(window,"resize",function(){if(timer){clearTimeout(timer);timer=null}if(open){timer=setTimeout(K.onWindowResize,10)}})};K.onOpen=function(obj,callback){doWindowResize=false;container.style.display="block";setSize();var dims=setDimensions(S.options.initialHeight,S.options.initialWidth);adjustHeight(dims.innerHeight,dims.top);adjustWidth(dims.width,dims.left);if(S.options.showOverlay){overlay.style.backgroundColor=S.options.overlayColor;S.setOpacity(overlay,0);if(!S.options.modal){addEvent(overlay,"click",S.close)}overlayOn=true}if(!supportsFixed){setPosition();addEvent(window,"scroll",setPosition)}toggleTroubleElements();container.style.visibility="visible";if(overlayOn){animate(overlay,"opacity",S.options.overlayOpacity,S.options.fadeDuration,callback)}else{callback()}};K.onLoad=function(changing,callback){toggleLoading(true);while(K.body.firstChild){remove(K.body.firstChild)}hideBars(changing,function(){if(!open){return}if(!changing){wrapper.style.visibility="visible"}buildBars(callback)})};K.onReady=function(callback){if(!open){return}var player=S.player,dims=setDimensions(player.height,player.width);var wrapped=function(){showBars(callback)};switch(S.options.animSequence){case"hw":adjustHeight(dims.innerHeight,dims.top,true,function(){adjustWidth(dims.width,dims.left,true,wrapped)});break;case"wh":adjustWidth(dims.width,dims.left,true,function(){adjustHeight(dims.innerHeight,dims.top,true,wrapped)});break;default:adjustWidth(dims.width,dims.left,true);adjustHeight(dims.innerHeight,dims.top,true,wrapped)}};K.onShow=function(callback){toggleLoading(false,callback);doWindowResize=true};K.onClose=function(){if(!supportsFixed){removeEvent(window,"scroll",setPosition)}removeEvent(overlay,"click",S.close);wrapper.style.visibility="hidden";var callback=function(){container.style.visibility="hidden";container.style.display="none";toggleTroubleElements(true)};if(overlayOn){animate(overlay,"opacity",0,S.options.fadeDuration,callback)}else{callback()}};K.onPlay=function(){toggleNav("play",false);toggleNav("pause",true)};K.onPause=function(){toggleNav("pause",false);toggleNav("play",true)};K.onWindowResize=function(){if(!doWindowResize){return}setSize();var player=S.player,dims=setDimensions(player.height,player.width);adjustWidth(dims.width,dims.left);adjustHeight(dims.innerHeight,dims.top);if(player.onWindowResize){player.onWindowResize()}};S.skin=K;window.Shadowbox=S})(window);
/**
	Protoform(class) v1.1 18/03/2009
	Copyright (c) 2008 Filippo Buratti; info [at] cssrevolt.com [dot] com; http://www.filippoburatti.net/

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	THE SOFTWARE.
*/

REGEX_AUTO_FIELD  = /^[^_]+(_Req)?(_(Tel|Num|Int|Email|Url|Date))?$/;
REGEX_BLANK       = /^\s*$/;
REGEX_EMAIL       = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
REGEX_TEL         = /^([0-9]*\-?\ ?\/?[0-9]*)$/;
REGEX_NUM		  = /^[-+]?\d+(\.\d+)?$/;
REGEX_URL         = /^(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&amp;:/~\+#]*[\w\-\@?^=%&amp;/~\+#])?/;
REGEX_DAY         = /^(0?[1-9]|[1-2][0-9]|3[01])$/;
REGEX_MONTH       = /^(0?[1-9]|1[0-2])$/;
REGEX_YEAR        = /^[0-9]{2,4}$/;
REGEX_TYPED_FIELD = /_(Tel|Num|Int|Email|Url|Date)$/;


var Protoform = Class.create({

initialize: function(form, options) {	  	
	this.options = {
      		ajax: true,
			url:''
    	}
		Object.extend(this.options, options || {});
	this.form      		= $(form);
	this.formProcess 	= this.checkForm.bindAsEventListener(this);
	this.form.observe("submit", this.formProcess );
	this.hoverFocus();
},

hoverFocus: function() { 
 	this.form.select('input', 'textarea').each(function(item) {
    	Event.observe(item,'focus',function() {
      		Element.addClassName(this,'hoverfocus');
    	}.bind(item));
    	Event.observe(item,'blur',function() {
      		Element.removeClassName(this,'hoverfocus');
    	}.bind(item));
	});
},
	
checkForm: function(event) { 
	Event.stop(event);
    var errors	= '';
    var faulty	= null;
	if ($('response')) { $('response').remove(); }
	
	this.form.getElements().each(function(formElements) {
		var value 			= ($F(formElements)!= null) ? $F(formElements) : '' ;
		var idField			= formElements.readAttribute('id') ? formElements.readAttribute('id') : '';
		
		var typedField 		= idField.match(REGEX_TYPED_FIELD);
		var errorMessage	= formElements.readAttribute('title');


		
		if (!idField.match(REGEX_AUTO_FIELD)) {
            return;
		}  
		
		if (idField.match(/_Req/) && value.match(REGEX_BLANK)) {
            errors += '<li>' + errorMessage + '</li>';
            faulty = faulty || formElements;
            return;
        }
		
		if (typedField  && !value.match(REGEX_BLANK)) {
	    	var type = typedField[1];		
	    	var error = this.checkField(value, type);
	    	if (error) {
				errors += '<li>' + errorMessage + '</li>';
				faulty = faulty || formElements;
	    	}
		}
	}.bindAsEventListener(this));
	
	
	if (errors==0) {
		if (this.options.ajax){
			this.sendData(); 
		} else {
			this.form.submit();
		}
	} else {
	
		if (!$('error')) {	
			this.form.insert({before:new Element('ul', {id:'error'}).update(errors)});
		} else {
			$('error').update(errors);	
		}
		faulty.focus();
	}
},
	
checkField: function (value, type) {
	switch (type) {
		case 'Tel':
			var phone= value;
			if (!phone.match(REGEX_TEL)) { return true; }     
			break;
		case 'Num':
			var number= value;
			if (!number.match(REGEX_NUM)) { return true; }     
			break;
		case 'Tel':
			var phone= value;
			if (!phone.match(REGEX_TEL)) { return true; }     
			break;
		case 'Email':
			var address= value;
			if (!address.match(REGEX_EMAIL)) { return true; }     
			break;
		case 'Url':
			var resource= value;
			if (!resource.match(REGEX_URL)) { return true; }
			break;
		case 'Date':
			var comps = value.split('/');
        	if (3 != comps.length || !comps[0].match(REGEX_DAY) || !comps[1].match(REGEX_MONTH) || !comps[2].match(REGEX_YEAR)) { return true; }
			break;
		default:
			return null;
	}

}.bind(this), 
	
sendData: function(event) {
	var url 	= (this.options.url) ? (this.options.url) : this.form.readAttribute('action');
	var reqType	= this.form.readAttribute('method');
	var pars 	= this.form.serialize();
	var myAjax 	= new Ajax.Request( url, { method: reqType, parameters: pars, onCreate: this.showLoad.bind(this), onComplete: this.getResponse.bind(this) });
},
	
showLoad: function() {
	this.form.insert({before:'<p id="working">loading...</p>'});
	if ($('error')) { $('error').remove(); }
},
	
getResponse: function(transport) {
	$('working').remove();
	var newData = transport.responseText;
	this.form.insert({before:newData}).reset();
}	
  
}); 
/*
Copyright (c) 2010 Filippo Buratti - http://www.cssrevolt.com

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*/

Carosello = Class.create({
	initialize: function (wrapper, options) {

		this.options = Object.extend({
            duration:           1,
			frequency:          2,
            visibleSlides:      1,
			direction:			'horizontal',
			transition:         'sinusoidal',
            auto:               false,		
			circular:           false,
            wheel:              true,
			scrollbar:          false,
            controlClassName:   'carousel-control',
            jumperClassName:    'carousel-jumper',
            selectedClassName:  'carousel-selected'         
        }, options || {});
		
		this.wrapper		= $(wrapper);
		this.scroller		= this.wrapper.down('div.carousel-container');
		this.scrollerInner 	= this.scroller.down('div.carousel-content');
		this.slides			= this.scrollerInner.childElements();
		this.controls		= this.wrapper.select('a.' + this.options.jumperClassName + ', a.' + this.options.controlClassName);
		this.jumpers		= [];
		this.scrolling		= false;
		this.enableScroll   = true;
		var slideDim        = this.slides.first().getDimensions();
		this.slideWidth     = slideDim.width;
		this.slideHeight    = slideDim.height;
		
		
		if (this.options.circular) {
			$R(0,this.options.visibleSlides-1).each(function(slide){
				var addedslide = this.slides[slide].cloneWithoutIDs();
				this.scrollerInner.insert({ bottom: addedslide });
				this.slides.push(addedslide);											 
				}.bind(this));
        }
		
		if (this.options.direction=='horizontal') { 
			var scrollerInnerWidth = this.slides.size() * this.slideWidth;		
			this.scrollerInner.setStyle('width:' + scrollerInnerWidth + 'px;');	
		}
		
		this.maxPos = this.slides.size() - this.options.visibleSlides;
		
				
		this.slides.each(function(slide, index) {
			slide._index = index;
        });
		
		if (this.controls.size()!=0) {		
            this.controls.invoke('on', 'click', 'a', this.click.bind(this));
			this.jumpers = this.controls.findAll(function(elem) { return elem.hasClassName(this.options.jumperClassName); }.bind(this));
        }
        
        if (this.options.wheel) {            
            this.scroller.observe('mousewheel', this.wheel.bindAsEventListener(this)).observe('DOMMouseScroll', this.wheel.bindAsEventListener(this));
        }
		
		if(this.options.scrollbar) {
			this.createScrollbar();	
		}

        if (this.options.auto) {
            this.start();
        }

		if (this.options.initial) {
			var initialIndex = this.slides.indexOf($(this.options.initial));
			if (initialIndex > (this.options.visibleSlides - 1) && this.options.visibleSlides > 1) {               
				if (initialIndex > this.maxPos - 1) {
					initialIndex = this.maxPos;
				}	
			}			
            this.moveTo(this.slides[initialIndex], this.jumpers[initialIndex]);
		}
		
	},
	
	createScrollbar: function () {
		var slider = this.wrapper.down('div.carousel-scrollbar');
		this.scrollbar = new S2.UI.Slider(slider, {
      			onSlide: function(value) { this.movethroughSlider(value); }.bind(this),
				onChange: function(value) { this.movethroughSlider(value); }.bind(this)
    	}); 
		
		this.scroller.observe('carousel:position:changed', function(event) {
																								
				var divider = this.options.circular ? this.maxPos - this.options.visibleSlides : this.maxPos;
            	this.scrollbar.setValue((this.scroller.scrollLeft/this.slideWidth)/divider * 100, 0);

        }.bind(this));
		
	},
	
	movethroughSlider: function (value) {
			
		if(this.enableScroll) {		
			var jumperIndex = (this.options.circular) ? this.maxPos-1 : this.maxPos;
			var jumper = this.jumpers[Math.round((value * jumperIndex)/100)];	
			this.updateJumpers(jumper);
			jumper.focus();
			var correction = (this.options.circular) ? (this.options.visibleSlides * this.slideWidth) : 0;		
			this.scroller.scrollLeft = Math.round(value/100*(this.scroller.scrollWidth-this.scroller.offsetWidth-correction));
			
			this.stop();
		}
		
	},

	click: function (event, element) {
		
		this.stop();
		event.stop();
		
		var action = element.readAttribute('href').substr(1);
				
		if (element.hasClassName(this.options.controlClassName)) {
			this[action]();
		} else if (element.hasClassName(this.options.jumperClassName)) {
			this.moveTo(action,element);			
		}			
		
    },

	moveTo: function (element, jumper) {
		
		this.updateJumpers(jumper);
		
		if (this.options.beforeMove && (typeof this.options.beforeMove == 'function')) {
			this.options.beforeMove();
        }
		this.enableScroll = false;

		this.current  = $(element);

		var scrollerOffset = this.scroller.cumulativeOffset();
		var elementOffset  = this.current.cumulativeOffset();
		
		if (this.scrolling) {
			this.scrolling.cancel();
		}
              
		this.scrolling = new S2.FX.smoothScroll(this.scroller, {
			duration: this.options.duration,
			x: (elementOffset[0] - scrollerOffset[0]),
			y: (elementOffset[1] - scrollerOffset[1]),
			transition: S2.FX.Transitions[this.options.transition],
			after: (function () {
				if (this.options.afterMove && (typeof this.options.afterMove == 'function')) {
					this.options.afterMove();
				}                        
				this.scrolling = false;
				this.enableScroll = true; 
			}).bind(this)
			});

		this.scrolling.play();

		return false;
	},
	
	updateJumpers: function(jumper) {
		
		if (this.jumpers.size()!=0) {
				this.jumpers.invoke('removeClassName', this.options.selectedClassName);
				jumper.addClassName(this.options.selectedClassName);
		}
	
	}, 

	prev: function () {
		
		if (this.current) {
			var currentIndex = this.current._index;
			var prevIndex = (currentIndex == 0) ? (this.options.circular ? this.maxPos : 0) : currentIndex - 1;
			
        } else {
			
            var prevIndex = (this.options.circular ? this.maxPos : 0);
		
        }
		
		var jumper = this.jumpers[prevIndex];
		
		if (prevIndex == this.maxPos && this.options.circular) {
			
			if (this.options.direction=='horizontal') { 
				this.scroller.scrollLeft =  this.maxPos * this.slideWidth;
			} else { this.scroller.scrollTop =  this.maxPos * this.slideHeight; }
			
//			this.scroller.scrollLeft =  this.maxPos * this.slideWidth;
//			this.scroller.scrollTop =  this.maxPos * this.slideHeight;

			prevIndex = this.maxPos - 1;	
			jumper = this.jumpers.last();
			
        }

		this.moveTo(this.slides[prevIndex], jumper);
		
	},

	next: function () {
		
		if (this.current) {		
			var currentIndex = this.current._index;		
			var nextIndex = (this.maxPos == currentIndex) ? (this.options.circular ? 0 : currentIndex) : currentIndex + 1;					
        } else {
            var nextIndex = 1;			
        }
		
		if (nextIndex == 0 && this.options.circular) {
			this.scroller.scrollLeft = 0;
			this.scroller.scrollTop  = 0;
			nextIndex = 1;
        }
		
		var jumper = this.jumpers[nextIndex];

		if (nextIndex > this.maxPos - 1) {
			nextIndex = this.maxPos;

			jumper = (this.options.circular) ? this.jumpers.first() : this.jumpers[nextIndex];
		}		
		
		this.moveTo(this.slides[nextIndex], jumper);
		
	},

	first: function () {
		this.moveTo(this.slides.first(), this.jumpers.first());
    },

	last: function () {
		var lastslide = this.options.circular ? this.maxPos - this.options.visibleSlides : this.maxPos;
		this.moveTo(this.slides[lastslide], this.jumpers.last());
    },

	stop: function () {
		if (this.periodicallyUpdate) {
			this.periodicallyUpdate.stop();
		}
	},

	start: function () { 
		if (!this.periodicallyUpdate || this.periodicallyUpdate.timer  == null) {
			this.periodicallyUpdate = new PeriodicalExecuter(function(){
	  			this.next(); 
	 		}.bind(this),this.options.frequency);
		 }
    },
    
    wheel: function (event) {
        event.cancelBubble = true;
        event.stop();
		this.stop();
        
		var delta = 0;
		if (!event) {
            event = window.event;
        }
		if (event.wheelDelta) {
			delta = event.wheelDelta / 120; 
		} else if (event.detail) { 
            delta = -event.detail / 3;	
        }        
       
        if (!this.scrolling) {
            if (delta > 0) {
                this.prev();
            } else {
                this.next();
            }            
        }
        
		return Math.round(delta); //Safari Round
    }

});

S2.FX.smoothScroll = Class.create(S2.FX.Base, {
								  
	initialize: function($super, element, options){
		if(!(this.element = $(element))) throw(S2.FX.elementDoesNotExistError);
		$super(Object.extend({ x: 0, y: 0 }, options));
	},
	
	setup: function(){
		this.originalLeft = this.element.scrollLeft;
		this.originalTop  = this.element.scrollTop;
		this.options.x -= this.originalLeft;
		this.options.y -= this.originalTop;
	},
	
	update: function(position){
		this.element.fire("carousel:position:changed",{position:position});
		this.element.scrollLeft = this.options.x * position + this.originalLeft;
		this.element.scrollTop  = this.options.y * position + this.originalTop;
	}
	
});
/*
Copyright (c) 2010 Filippo Buratti - http://www.cssrevolt.com

*/

var LazyLoad = Class.create({
    
	initialize: function(element, options) {
		
		this.options = {
			duration: 0.7,
			placeHolder : ''
		};
		
		Object.extend(this.options, options || {});
		
		this.element = $(element);
  		
		if (!this.withinViewport()) {
			this.element._src = this.element.readAttribute('src');
			this.element.src = this.options.placeHolder;			
	    }

		this.lazyScroller = this.load.bind(this);
	    Event.observe(window, 'scroll', this.lazyScroller);
	    Event.observe(window, 'resize', this.lazyScroller);
		
    },
	
    load: function() {
		
			if (this.element._src && this.withinViewport()) {
				
				var imgPreloader = new Image();	
				
				imgPreloader.onload = (function(){
					this.element.setOpacity(0);;
					this.element.src = this.element._src; 
					this.element.appear({ duration: this.options.duration, engine: 'javascript' });	
					if (this.options.afterLoad && (typeof this.options.afterLoad == 'function')) {
						this.options.afterLoad();
					} 
        		}).bind(this);
					
				imgPreloader.src = this.element._src;
				
				Event.stopObserving(window, 'scroll', this.lazyScroller);
				Event.stopObserving(window, 'resize', this.lazyScroller);
				
				 
				
			}
		
    },
	
    withinViewport: function() {	
        var elOffset = this.element.cumulativeOffset();
		var vpOffset = document.viewport.getScrollOffsets();
        var elDim = this.element.getDimensions();
		vpDim = document.viewport.getDimensions();
    	if (elOffset[1] + elDim.height < vpOffset[1] || elOffset[1] > vpOffset[1] + vpDim.height || elOffset[0] + elDim.width < vpOffset[0] || elOffset[0] > vpOffset[0] + vpDim.width) {
        	return false;
    	}
    	return true;
    }
	
})
/*
Copyright (c) 2010 Filippo Buratti - http://www.cssrevolt.com
*/
var protoRoll = Class.create({

	initialize: function(element, options) {	
	
		this.options = {
			duration: 0.5,
			target: 'img',
			direction: 'bottom',
			transition : 'sinusoidal'
		};
		
		Object.extend(this.options, options || {});
	
		this.element 		= $(element);
		this.target 		= this.element.down(this.options.target);	
		
		
		
		if (this.options.target=='img') {
			
			var imgPreloader = new Image();	
				
				imgPreloader.onload = (function(){
					this.buildRolling();
        		}).bind(this);
				
			imgPreloader.src = this.target.readAttribute('src');

		} 
		
		else {
			
			this.buildRolling();
		
		}	
	
		
	},
	
	buildRolling: function() {
		
		var elementDim 		= this.target.getDimensions();
		this.elementWidth  	= elementDim.width;
		this.elementHeight 	= elementDim.height;
		
		this.addObservers();
		this.setDirections();
		
	},
	
	
	setDirections: function() {
		
		switch(this.options.direction) {
		
		case 'top': 
			this.cssTop 	= '-'+this.elementHeight+'px';
			this.cssLeft 	= 0;
			break;
		
		case 'bottom':
			this.cssTop 	= this.elementHeight+'px';
			this.cssLeft 	= 0;
			break;		
		
		case 'left':
			this.cssTop 	= 0;
			this.cssLeft 	= '-'+this.elementWidth+'px';
			break;
		
		
		case 'right': 
			this.cssTop 	= 0;
			this.cssLeft 	= this.elementWidth+'px';
			break;
			
		
			case 'topleft': 
				this.cssTop 	= '-'+this.elementHeight+'px';
				this.cssLeft 	= '-'+this.elementWidth+'px';
				break;
			
			case 'topright': 
				this.cssTop 	= '-'+this.elementHeight+'px';
				this.cssLeft 	= this.elementWidth+'px';
				break;
			
			case 'bottomleft':
				this.cssTop 	= this.elementHeight+'px';
				this.cssLeft 	= '-'+this.elementWidth+'px';
				break;
		
			case 'bottomright':
				this.cssTop 	= this.elementHeight+'px';
				this.cssLeft 	= this.elementWidth+'px';
				break;
		
		}
		
		
		
	},
	
	addObservers: function() {
		
		Event.observe(this.element, "mouseover", this.rollOver.bind(this));
   		Event.observe(this.element, "mouseout", this.rollOut.bind(this));
		
	},
	
	rollOver: function() {
		
		this.target.currentEffect && this.target.currentEffect.cancel();
		this.target.currentEffect = new S2.FX.Morph(this.target, { style:'top:'+this.cssTop+'; left:'+this.cssLeft, duration:this.options.duration, transition: S2.FX.Transitions[this.options.transition] });
		this.target.currentEffect.play();
			
	},
	
	rollOut: function() {
		
		this.target.currentEffect && this.target.currentEffect.cancel();
      	this.target.currentEffect = new S2.FX.Morph(this.target, { style:'top:0; left:0;', duration:this.options.duration, transition: S2.FX.Transitions[this.options.transition] });
		this.target.currentEffect.play();
	}
	
});
/* my exeperiment with canvas [f.buratti] */
var grayscaleRoll = Class.create({

	initialize: function(element) {
			
		this.element 		= $(element);
		this.originalSrc 	= this.element.readAttribute('src');
		this.newSrc 		= null;
		this.msie678		= Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) < 9;
		
	
		this.element.observe("mouseover", this.rollOn.bind(this));
    	this.element.observe("mouseout", this.rollOut.bind(this));
	
	
	},
	
	rollOn: function() {
	
		if (this.msie678) {
			
			this.desaturateBad();
		
		} else {
	
			if (this.newSrc==null) {
		
				this.desaturateGood();
			
			} 
		
			this.element.src = this.newSrc;
		}
		
    },
	
	rollOut: function() {
		
		if (this.msie678) {
			
			 this.element.style.filter = '';
		
		} else {
     		
			this.element.src = this.originalSrc;
	  
	  	}
	  
    },
	
	desaturateGood: function() {
	
		var canvas 			= document.createElement('canvas');
        var canvasContext 	= canvas.getContext('2d');
		
		var imgDim			= this.element.getDimensions();
		var imgWidth		= imgDim.width;
		var imgHeight		= imgDim.height;

        canvas.width = imgWidth;
        canvas.height = imgHeight;
        
        canvasContext.drawImage(this.element, 0, 0);
        var imgPixels = canvasContext.getImageData(0, 0, imgWidth, imgHeight);
        
        for(var y = 0; y < imgPixels.height; y++){
            for(var x = 0; x < imgPixels.width; x++){
                var i = (y * 4) * imgPixels.width + x * 4;
                var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;
                imgPixels.data[i] = avg; 
                imgPixels.data[i + 1] = avg; 
                imgPixels.data[i + 2] = avg;
            }
        }
        
        canvasContext.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);
		

		
		return this.newSrc= canvas.toDataURL();
	
	},
	
	 desaturateBad: function()  {
        this.element.style.filter = 'progid:DXImageTransform.Microsoft.BasicImage(grayScale=1)';
    }



});

Element.addMethods({
	toggleEffect: (function(){

		var PAIRS = ['SlideUp', 'SlideDown'];

		return function(element, options){
			element = $(element);

			new S2.FX[PAIRS[element.visible() ? 0 : 1]](element, options).play();
			return element;
		}
	})()
});

S2.FX.scrollSP = Class.create(S2.FX.Base, {
	
	initialize: function($super, element, options){
		if(!(this.element = $(element))) throw(S2.FX.elementDoesNotExistError);

		$super(options);
		this.play();
	},

	setup: function(){
		var scroll = document.viewport.getScrollOffsets(),
		offset = this.element.cumulativeOffset();
	
		this.startLeft = scroll.left;
		this.startTop = scroll.top;
		this.left = offset.left - this.startLeft;
		this.top = offset.top - this.startTop;
	},

	update: function(position){
		position = this.options.transition(position);
		scrollTo(this.startLeft + this.left * position, this.startTop + this.top * position);
	}
	
});

var myScroll = function (itm) {
	
	var href = itm.getAttribute('href');	
	var itemID = href.substr(href.indexOf('#')+1);
	
	new S2.FX.scrollSP(itemID, { duration: 1 });

}

var synErgoInit = function () {

	$$("form.form ").each( function(node) {

		if (node.readAttribute('id')!= 'invio-posta-certificata') {																
			var aiaxUrl = "/" + node.readAttribute('id') + ".php";
			new Protoform(node, { url:aiaxUrl });	
		}
	});	
	
	
	$$('.showHide').each(function(element) {  
		
		element.next().hide();
     
        element.on('click', "a", function(event, itemLink){ 
			event.stop();  									  
			element.next().toggleEffect({ before: function() {	myScroll(itemLink);	} }); 			
        });  
           
     }); 		

		

	$$('a.myScroll').each(function(element) {
		element.observe('click', function(event) {
			event.stop(); 
			myScroll(element);
		})
	})
	
	
	$$("#box-showcase div.roller").each( function(node) {
		new protoRoll(node, {direction:'left'});		
		});
	
	$$(".articolo img", "#gallery img").each( function(image) {																														
		new LazyLoad(image, {placeHolder: '/images/blank.gif', afterLoad: function() { new grayscaleRoll(image); }});
	});
	
	$$(".testo img", "div.slide-lavori img", "div.slide-portfolio img").each( function(image) {																														
		new grayscaleRoll(image);
	});
	
	if ($('carosello-main')) {
	 	var car =  new Carosello('wallpaper', { 
			auto: true, 
			direction: 'vertical',
			circular: true,
			visibleSlides: 1,
			frequency: 5,
			duration:1.5,
			wheel:false,
			transition: 'easeInOutExpo'
		});
	}
	
	if ($('carosello-lavori')) {
		
		$$('div.slide-lavori span').each(function(itm) {
			itm.setOpacity(0.7);
		}); 
		
	 	var car2 =  new Carosello('box-lavori', { 
			auto: true, 
			direction: 'vertical',
			circular: true,
			visibleSlides: 1,
			frequency: 4,
			duration:1.0,
			wheel:false,
			transition: 'easeInOutExpo'
		});
	}

//	if ($('carosello-lavori')) {
//		
//		$$('div.slide-lavori span').each(function(itm) {
//			itm.setOpacity(0.7);
//		}); 
//		
//
//		new Protofade('carosello-lavori', { effect:'flip', eDirection:'vertical', duration:0.7 });
//	}
	
	if ($('carosello-portfolio-wrapper')) {
		
		$$('div.caption').each(function(itm) {
			itm.setOpacity(0.7);
		}); 
		
	 	var car3 =  new Carosello('carosello-portfolio-wrapper', { 
			auto: true, 
			direction: 'horizontal',
			circular: true,
			visibleSlides: 1,
			frequency: 4,
			duration:1.0,
			wheel:false,
			initial:'slide-1',
			transition: 'easeInOutExpo'
		});
		
	}
	
}

Shadowbox.init({
	language: "it",
	useSizzle: false,
    players: ["img", "iframe", "swf"],
	overlayColor:"#666",
	overlayOpacity:0.5,
	resizeDuration:0.8
});

document.observe ('dom:loaded', synErgoInit);