/* start prototype.js */
/*  Prototype JavaScript framework, version 1.6.0.2
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/
var Prototype = {
  Version: '1.6.0.2',
  Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },
  BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },
  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;
/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();
    function klass() {
      this.initialize.apply(this, arguments);
    }
    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];
    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }
    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);
    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;
    klass.prototype.constructor = klass;
    return klass;
  }
};
Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);
    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");
    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }
    return this;
  }
};
var Abstract = { };
Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};
Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.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;
    }
  },
  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }
    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;
    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }
    return '{' + results.join(', ') + '}';
  },
  toQueryString: function(object) {
    return $H(object).toQueryString();
  },
  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },
  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },
  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },
  clone: function(object) {
    return Object.extend({ }, object);
  },
  isElement: function(object) {
    return object && object.nodeType == 1;
  },
  isArray: function(object) {
    return object != null && typeof object == "object" &&
      'splice' in object && 'join' in object;
  },
  isHash: function(object) {
    return object instanceof Hash;
  },
  isFunction: function(object) {
    return typeof object == "function";
  },
  isString: function(object) {
    return typeof object == "string";
  },
  isNumber: function(object) {
    return typeof object == "number";
  },
  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});
Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },
  bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },
  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },
  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },
  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },
  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },
  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});
Function.prototype.defer = Function.prototype.delay.curry(0.01);
Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};
var Try = {
  these: function() {
    var returnValue;
    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }
    return returnValue;
  }
};
RegExp.prototype.match = RegExp.prototype.test;
RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/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();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
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, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(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;
  },
  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;
    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },
  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },
  truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },
  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },
  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },
  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },
  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },
  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },
  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },
  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },
  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };
    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);
        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },
  toArray: function() {
    return this.split('');
  },
  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },
  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },
  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];
    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];
    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
    return camelized;
  },
  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },
  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },
  dasherize: function() {
    return this.gsub(/_/,'-');
  },
  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },
  toJSON: function() {
    return this.inspect(true);
  },
  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },
  isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },
  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },
  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },
  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },
  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },
  empty: function() {
    return this == '';
  },
  blank: function() {
    return /^\s*$/.test(this);
  },
  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});
if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});
String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};
String.prototype.parseQuery = String.prototype.toQueryParams;
Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});
with (String.prototype.escapeHTML) div.appendChild(text);
var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },
  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();
    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';
      var before = match[1] || '';
      if (before == '\\') return match[2];
      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;
      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : 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 = {
  each: function(iterator, context) {
    var index = 0;
    iterator = iterator.bind(context);
    try {
      this._each(function(value) {
        iterator(value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },
  eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },
  all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },
  any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },
  collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },
  detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },
  findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },
  grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    if (Object.isString(filter))
      filter = new RegExp(filter);
    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },
  include: function(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;
  },
  inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },
  inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },
  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },
  max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },
  min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },
  partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },
  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },
  reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },
  sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },
  toArray: function() {
    return this.map();
  },
  zip: function() {
    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));
    });
  },
  size: function() {
    return this.toArray().length;
  },
  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};
Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}
if (Prototype.Browser.WebKit) {
  $A = function(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length || 0, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  };
}
Array.from = $A;
Object.extend(Array.prototype, Enumerable);
if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },
  clear: function() {
    this.length = 0;
    return this;
  },
  first: function() {
    return this[0];
  },
  last: function() {
    return this[this.length - 1];
  },
  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },
  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },
  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },
  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },
  reduce: function() {
    return this.length > 1 ? this : this[0];
  },
  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },
  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },
  clone: function() {
    return [].concat(this);
  },
  size: function() {
    return this.length;
  },
  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },
  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});
// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;
if (!Array.prototype.indexOf) Array.prototype.indexOf = function(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;
};
if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(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;
};
Array.prototype.toArray = Array.prototype.clone;
function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}
if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },
  succ: function() {
    return this + 1;
  },
  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },
  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },
  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});
$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};
var Hash = Class.create(Enumerable, (function() {
  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }
  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },
    _each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },
    set: function(key, value) {
      return this._object[key] = value;
    },
    get: function(key) {
      return this._object[key];
    },
    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },
    toObject: function() {
      return Object.clone(this._object);
    },
    keys: function() {
      return this.pluck('key');
    },
    values: function() {
      return this.pluck('value');
    },
    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },
    merge: function(object) {
      return this.clone().update(object);
    },
    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },
    toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;
        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },
    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },
    toJSON: function() {
      return Object.toJSON(this.toObject());
    },
    clone: function() {
      return new Hash(this);
    }
  }
})());
Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },
  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },
  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});
var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};
var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },
  activeRequestCount: 0
};
Ajax.Responders = {
  responders: [],
  _each: function(iterator) {
    this.responders._each(iterator);
  },
  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },
  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },
  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});
Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });
    this.options.method = this.options.method.toLowerCase();
    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});
Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,
  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },
  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);
    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }
    this.parameters = params;
    if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }
    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);
      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);
      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();
      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);
      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();
    }
    catch (e) {
      this.dispatchException(e);
    }
  },
  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },
  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };
    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');
      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }
    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;
      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }
    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },
  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },
  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },
  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }
      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }
    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }
    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },
  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },
  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null }
  },
  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },
  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});
Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;
    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }
    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },
  status:      0,
  statusText: '',
  getStatus: Ajax.Request.prototype.getStatus,
  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },
  getHeader: Ajax.Request.prototype.getHeader,
  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },
  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },
  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },
  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },
  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});
Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };
    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);
    $super(url, options);
  },
  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;
    if (!options.evalScripts) responseText = responseText.stripScripts();
    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;
    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);
    this.updater = { };
    this.container = container;
    this.url = url;
    this.start();
  },
  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },
  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },
  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);
      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },
  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}
if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}
/*--------------------------------------------------------------------------*/
if (!window.Node) var Node = { };
if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  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() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
}).call(window);
Element.cache = { };
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).style.display = 'none';
    return element;
  },
  show: function(element) {
    $(element).style.display = '';
    return element;
  },
  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },
  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },
  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },
  insert: function(element, insertions) {
    element = $(element);
    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};
    var content, insert, tagName, childNodes;
    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];
      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }
      content = Object.toHTML(content);
      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();
      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));
      content.evalScripts.bind(content).defer();
    }
    return element;
  },
  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },
  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },
  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },
  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },
  descendants: function(element) {
    return $(element).select("*");
  },
  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },
  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },
  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },
  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },
  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },
  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },
  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },
  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    return Object.isNumber(expression) ? element.descendants()[expression] :
      element.select(expression)[index || 0];
  },
  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },
  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },
  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },
  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },
  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('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().height;
  },
  getWidth: function(element) {
    return $(element).getDimensions().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(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(className) ?
      'removeClassName' : 'addClassName'](className);
  },
  // removes whitespace-only text node children
  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);
    var originalAncestor = ancestor;
    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;
    if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor && nextAncestor.sourceIndex)
       return (e > a && e < nextAncestor.sourceIndex);
    }
    while (element = element.parentNode)
      if (element == originalAncestor) return true;
    return false;
  },
  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    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) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },
  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },
  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];
    return element;
  },
  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },
  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};
    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },
  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },
  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },
  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },
  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },
  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },
  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },
  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.
    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;
    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;
    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },
  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.
    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },
  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },
  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);
    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);
    return $(document.body);
  },
  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;
    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      // Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;
    } while (element = element.offsetParent);
    element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);
    return Element._returnOffset(valueL, valueT);
  },
  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });
    // find page position of source
    source = $(source);
    var p = source.viewportOffset();
    // find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }
    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }
    // set position
    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;
  }
};
Element.Methods.identify.counter = 1;
Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});
Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};
if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          // returns '0px' for hidden elements; we want it to return null
          if (!Element.visible(element)) return null;
          // returns the border-box dimensions rather than the content-box
          // dimensions, so we subtract padding and borders from the value
          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) {
  // IE doesn't report offsets correctly for static elements, so we change them
  // to "relative" to get the values, then change them back.
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );
  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        // Trigger hasLayout on the offset parent so that IE6 reports
        // accurate offsetTop and offsetLeft values for position: fixed.
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });
  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];
    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }
    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };
  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;
    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };
  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _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').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });
  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      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);
}
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 == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }
    return element;
  };
  // Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  };
}
if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();
    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  };
}
if ('outerHTML' in document.createElement('div')) {
  Element.Methods.replace = function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }
    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  };
}
Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};
Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};
Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};
(function() {
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);
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);
if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}
Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;
  var Methods = { }, ByTag = Element.Methods.ByTag;
  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;
    var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;
    // extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }
    element._extendedByPrototype = Prototype.emptyFunction;
    return element;
  }, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });
  extend.refresh();
  return extend;
})();
Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};
Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }
  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }
  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }
  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }
  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }
  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];
    window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }
  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, 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() {
    var dimensions = { };
    var B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
        (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
    });
    return dimensions;
  },
  getWidth: function() {
    return this.getDimensions().width;
  },
  getHeight: function() {
    return this.getDimensions().height;
  },
  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum‰Ûªs DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */
var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },
  shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;
    var e = this.expression;
    // Safari 3 chokes on :*-of-type and :empty
    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;
    // XPath can't do namespaced attributes, nor can it read
    // the "checked" property from DOM nodes
    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
      return false;
    return true;
  },
  compileMatcher: function() {
    if (this.shouldUseXPath())
      return this.compileXPathMatcher();
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;
    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }
    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
    	      new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }
    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },
  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;
    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }
    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }
    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },
  findElements: function(root) {
    root = root || document;
    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
    return this.matcher(root);
  },
  match: function(element) {
    this.tokens = [];
    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;
    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          // use the Selector.assertions methods unless the selector
          // is too complex.
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            // reluctantly do a document-wide search
            // and look for a match in the array
            return this.findElements(document).include(element);
          }
        }
      }
    }
    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }
    return match;
  },
  toString: function() {
    return this.expression;
  },
  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});
Object.extend(Selector, {
  _cache: { },
  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
      'checked':     "[@checked]",
      'disabled':    "[@disabled]",
      'enabled':     "[not(@disabled)]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;
        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i in p) {
            if (m = e.match(p[i])) {
              v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },
  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },
  patterns: {
    // combinators must be listed first
    // (and descendant needs to be last combinator)
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,
    // selectors follow
    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
    attrPresence: /^\[([\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },
  // for Selector.match and Element#match
  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },
    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },
    id: function(element, matches) {
      return element.id === matches[1];
    },
    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },
    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },
  handlers: {
    // UTILITY FUNCTIONS
    // joins two collections
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },
    // marks an array of nodes for counting
    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = undefined;
      return nodes;
    },
    // mark each child node with its position (for nth calls)
    // "ofType" flag indicates whether we're indexing for nth-of-type
    // rather than nth-child
    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },
    // filters out duplicates and extends all nodes
    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._countedByPrototype) {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },
    // COMBINATOR FUNCTIONS
    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },
    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },
    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },
    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },
    nextElementSibling: function(node) {
      while (node = node.nextSibling)
      if (node.nodeType == 1) return node;
      return null;
    },
    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },
    // TOKEN FUNCTIONS
    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          // fastlane for ordinary descendant combinators
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },
    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },
    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },
    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },
    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },
    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },
    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },
  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },
    // handles the an+b logic
    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },
    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },
    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        // IE treats comments as element nodes
        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
        results.push(node);
      }
      return results;
    },
    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },
    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled) results.push(node);
      return results;
    },
    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },
    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },
  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv.startsWith(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
  },
  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },
  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },
  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },
  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});
if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    // IE returns comment nodes on getElementsByTagName("*").
    // Filter them out.
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    },
    // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node.removeAttribute('_countedByPrototype');
      return nodes;
    }
  });
}
function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },
  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;
    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            // a key is already present; construct an array of values
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });
    return options.hash ? data : Object.toQueryString(data);
  }
};
Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },
  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.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'].include(element.tagName.toLowerCase());
    });
  },
  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },
  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });
    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);
    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }
    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;
    return new Ajax.Request(action, options);
  }
};
/*--------------------------------------------------------------------------*/
Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },
  select: function(element) {
    $(element).select();
    return element;
  }
};
Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },
  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },
  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },
  clear: function(element) {
    $(element).value = '';
    return element;
  },
  present: function(element) {
    return $(element).value != '';
  },
  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },
  disable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = true;
    return element;
  },
  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};
/*--------------------------------------------------------------------------*/
var Field = Form.Element;
var $F = Form.Element.Methods.getValue;
/*--------------------------------------------------------------------------*/
Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },
  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },
  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },
  select: function(element, index) {
    if (Object.isUndefined(index))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, value, single = !Object.isArray(index);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        value = this.optionValue(opt);
        if (single) {
          if (value == index) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = index.include(value);
      }
    }
  },
  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },
  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;
    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },
  optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};
/*--------------------------------------------------------------------------*/
Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },
  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});
Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
/*--------------------------------------------------------------------------*/
Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;
    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },
  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },
  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },
  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});
Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };
Object.extend(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: { },
  relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});
Event.Methods = (function() {
  var isButton;
  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };
  } else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };
  } else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }
  return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },
    element: function(event) {
      var node = Event.extend(event).target;
      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
    },
    findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },
    pointer: function(event) {
      return {
        x: event.pageX || (event.clientX +
          (document.documentElement.scrollLeft || document.body.scrollLeft)),
        y: event.pageY || (event.clientY +
          (document.documentElement.scrollTop || document.body.scrollTop))
      };
    },
    pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },
    stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();
Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });
  if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });
    return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;
      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };
  } else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();
Object.extend(Event, (function() {
  var cache = Event.cache;
  function getEventID(element) {
    if (element._prototypeEventID) return element._prototypeEventID[0];
    arguments.callee.id = arguments.callee.id || 1;
    return element._prototypeEventID = [++arguments.callee.id];
  }
  function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }
  function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }
  function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }
  function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;
    var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;
      Event.extend(event);
      handler.call(element, event);
    };
    wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }
  function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }
  function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }
  function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }
  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }
  return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);
      var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;
      if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }
      return element;
    },
    stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);
      if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;
      } else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }
      var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;
      if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }
      destroyWrapper(id, eventName, handler);
      return element;
    },
    fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;
      var event;
      if (document.createEvent) {
        event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        event = document.createEventObject();
        event.eventType = "ondataavailable";
      }
      event.eventName = eventName;
      event.memo = memo || { };
      if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }
      return Event.extend(event);
    }
  };
})());
Object.extend(Event, Event.Methods);
Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});
Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize(),
  loaded:        false
});
(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */
  var timer;
  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    document.loaded = true;
  }
  if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);
      Event.observe(window, "load", fireContentLoadedEvent);
    } else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }
  } else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- 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');
// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,
  // must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },
  // caches x/y coordinate pair to use with overlap
  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);
  },
  // within must be called directly before
  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;
  },
  // Deprecation layer -- use newer Element methods now (1.5.2).
  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 $A(this).join(' ');
  }
};
Object.extend(Element.ClassNames.prototype, Enumerable);
/*--------------------------------------------------------------------------*/
Element.addMethods();
/* end prototype.js */
var Scriptaculous = {Version:"1.7.1_beta3", require:function (libraryName) {document.write("<script type=\"text/javascript\" src=\"" + libraryName + "\"></" + "script>");}, REQUIRED_PROTOTYPE:"1.5.1", load:function () {
function convertVersionString(versionString) {var r = versionString.split(".");return parseInt(r[0]) * 100000 + parseInt(r[1]) * 1000 + parseInt(r[2]);}
if (typeof Prototype == "undefined" || typeof Element == "undefined" || typeof Element.Methods == "undefined" || convertVersionString(Prototype.Version) < convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)) {throw "script.aculo.us requires the Prototype JavaScript framework >= " + Scriptaculous.REQUIRED_PROTOTYPE;}var pattern = /(proto|scripta)culous[a-z0-9._-]*\.js(\?.*)?$/;$A(document.getElementsByTagName("script")).findAll(function (s) {return s.src && s.src.match(pattern);}).each(function (s) {var path = s.src.replace(pattern, "");var includes = (s.src.match(/\?.*load=([a-z,]*)/) || ['',''])[1];includes.split(",").without("").each(function (include) {Scriptaculous.require(path + include + ".js");});});}};var Builder = {NODEMAP:{AREA:"map", CAPTION:"table", COL:"table", COLGROUP:"table", LEGEND:"fieldset", OPTGROUP:"select", OPTION:"select", PARAM:"object", TBODY:"table", TD:"table", TFOOT:"table", TH:"table", THEAD:"table", TR:"table"}, node:function (elementName) {elementName = elementName.toUpperCase();var parentTag = this.NODEMAP[elementName] || "div";var parentElement = document.createElement(parentTag);try {parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";} catch (e) {}var element = parentElement.firstChild || null;if (element && element.tagName.toUpperCase() != elementName) {element = element.getElementsByTagName(elementName)[0];}if (!element) {element = document.createElement(elementName);}if (!element) {return;}if (arguments[1]) {if (this._isStringOrNumber(arguments[1]) || arguments[1] instanceof Array || arguments[1].tagName) {this._children(element, arguments[1]);} else {var attrs = this._attributes(arguments[1]);if (attrs.length) {try {parentElement.innerHTML = "<" + elementName + " " + attrs + "></" + elementName + ">";} catch (e) {}element = parentElement.firstChild || null;if (!element) {element = document.createElement(elementName);for (attr in arguments[1]) {element[attr == "class" ? "className" : attr] = arguments[1][attr];}}if (element.tagName.toUpperCase() != elementName) {element = parentElement.getElementsByTagName(elementName)[0];}}}}if (arguments[2]) {this._children(element, arguments[2]);}return element;}, _text:function (text) {return document.createTextNode(text);}, ATTR_MAP:{className:"class", htmlFor:"for"}, _attributes:function (attributes) {var attrs = [];for (attribute in attributes) {attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) + "=\"" + attributes[attribute].toString().escapeHTML().gsub(/"/, "&quot;") + "\"");}return attrs.join(" ");}, _children:function (element, children) {if (children.tagName) {element.appendChild(children);return;}if (typeof children == "object") {children.flatten().each(function (e) {if (typeof e == "object") {element.appendChild(e);} else if (Builder._isStringOrNumber(e)) {element.appendChild(Builder._text(e));}});} else if (Builder._isStringOrNumber(children)) {element.appendChild(Builder._text(children));}}, _isStringOrNumber:function (param) {return typeof param == "string" || typeof param == "number";}, build:function (html) {var element = this.node("div");$(element).update(html.strip());return element.down();}, dump:function (scope) {if (typeof scope != "object" && typeof scope != "function") {scope = window;}var tags = "A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR".split(/\s+/);tags.each(function (tag) {scope[tag] = function () {return Builder.node.apply(Builder, [tag].concat($A(arguments)));};});}};String.prototype.parseColor = function () {var color = "#";if (this.slice(0, 4) == "rgb(") {var cols = this.slice(4, this.length - 1).split(",");var i = 0;do {color += parseInt(cols[i]).toColorPart();} while (++i < 3);} else {if (this.slice(0, 1) == "#") {if (this.length == 4) {for (var i = 1; i < 4; i++) {color += (this.charAt(i) + this.charAt(i)).toLowerCase();}}if (this.length == 7) {color = this.toLowerCase();}}}return color.length == 7 ? color : arguments[0] || this;};Element.collectTextNodes = function (element) {return $A($(element).childNodes).collect(function (node) {return node.nodeType == 3 ? node.nodeValue : node.hasChildNodes() ? Element.collectTextNodes(node) : "";}).flatten().join("");};Element.collectTextNodesIgnoreClass = function (element, className) {return $A($(element).childNodes).collect(function (node) {return node.nodeType == 3 ? node.nodeValue : node.hasChildNodes() && !Element.hasClassName(node, className) ? Element.collectTextNodesIgnoreClass(node, className) : "";}).flatten().join("");};Element.setContentZoom = function (element, percent) {element = $(element);element.setStyle({fontSize:percent / 100 + "em"});if (Prototype.Browser.WebKit) {window.scrollBy(0, 0);}return element;};Element.getInlineOpacity = function (element) {return $(element).style.opacity || "";};Element.forceRerendering = function (element) {try {element = $(element);var n = document.createTextNode(" ");element.appendChild(n);element.removeChild(n);} catch (e) {}};Array.prototype.call = function () {var args = arguments;this.each(function (f) {f.apply(this, args);});};var Effect = {_elementDoesNotExistError:{name:"ElementDoesNotExistError", message:"The specified DOM element does not exist, but is required for this effect to operate"}, tagifyText:function (element) {if (typeof Builder == "undefined") {throw "Effect.tagifyText requires including script.aculo.us' builder.js library";}var tagifyStyle = "position:relative";if (Prototype.Browser.IE) {tagifyStyle += ";zoom:1";}element = $(element);$A(element.childNodes).each(function (child) {if (child.nodeType == 3) {child.nodeValue.toArray().each(function (character) {element.insertBefore(Builder.node("span", {style:tagifyStyle}, character == " " ? String.fromCharCode(160) : character), child);});Element.remove(child);}});}, multiple:function (element, effect) {var elements;if ((typeof element == "object" || typeof element == "function") && element.length) {elements = element;} else {elements = $(element).childNodes;}var options = Object.extend({speed:0.1, delay:0}, arguments[2] || {});var masterDelay = options.delay;$A(elements).each(function (element, index) {new effect(element, Object.extend(options, {delay:index * options.speed + masterDelay}));});}, PAIRS:{slide:["SlideDown", "SlideUp"], blind:["BlindDown", "BlindUp"], appear:["Appear", "Fade"]}, toggle:function (element, effect) {element = $(element);effect = (effect || "appear").toLowerCase();var options = Object.extend({queue:{position:"end", scope:element.id || "global", limit:1}}, arguments[2] || {});Effect[element.visible() ? Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);}};var Effect2 = Effect;Effect.Transitions = {linear:Prototype.K, sinoidal:function (pos) {return - Math.cos(pos * Math.PI) / 2 + 0.5;}, reverse:function (pos) {return 1 - pos;}, flicker:function (pos) {var pos = - Math.cos(pos * Math.PI) / 4 + 0.75 + Math.random() / 4;return pos > 1 ? 1 : pos;}, wobble:function (pos) {return - Math.cos(pos * Math.PI * (9 * pos)) / 2 + 0.5;}, pulse:function (pos, pulses) {pulses = pulses || 5;return Math.round(pos % (1 / pulses) * pulses) == 0 ? pos * pulses * 2 - Math.floor(pos * pulses * 2) : 1 - (pos * pulses * 2 - Math.floor(pos * pulses * 2));}, none:function (pos) {return 0;}, full:function (pos) {return 1;}};Effect.ScopedQueue = Class.create();Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {initialize:function () {this.effects = [];this.interval = null;}, _each:function (iterator) {this.effects._each(iterator);}, add:function (effect) {var timestamp = (new Date).getTime();var position = typeof effect.options.queue == "string" ? effect.options.queue : effect.options.queue.position;switch (position) {case "front":this.effects.findAll(function (e) {return e.state == "idle";}).each(function (e) {e.startOn += effect.finishOn;e.finishOn += effect.finishOn;});break;case "with-last":timestamp = this.effects.pluck("startOn").max() || timestamp;break;case "end":timestamp = this.effects.pluck("finishOn").max() || timestamp;break;default:;}effect.startOn += timestamp;effect.finishOn += timestamp;if (!effect.options.queue.limit || this.effects.length < effect.options.queue.limit) {this.effects.push(effect);}if (!this.interval) {this.interval = setInterval(this.loop.bind(this), 15);}}, remove:function (effect) {this.effects = this.effects.reject(function (e) {return e == effect;});if (this.effects.length == 0) {clearInterval(this.interval);this.interval = null;}}, loop:function () {var timePos = (new Date).getTime();for (var i = 0, len = this.effects.length; i < len; i++) {this.effects[i] && this.effects[i].loop(timePos);}}});Effect.Queues = {instances:$H(), get:function (queueName) {if (typeof queueName != "string") {return queueName;}if (!this.instances[queueName]) {this.instances[queueName] = new Effect.ScopedQueue;}return this.instances[queueName];}};Effect.Queue = Effect.Queues.get("global");Effect.DefaultOptions = {transition:Effect.Transitions.sinoidal, duration:1, fps:100, sync:false, from:0, to:1, delay:0, queue:"parallel"};Effect.Base = function () {};Effect.Base.prototype = {position:null, start:function (options) {
function codeForEvent(options, eventName) {return (options[eventName + "Internal"] ? "this.options." + eventName + "Internal(this);" : "") + (options[eventName] ? "this.options." + eventName + "(this);" : "");}
if (options.transition === false) {options.transition = Effect.Transitions.linear;}this.options = Object.extend(Object.extend({}, Effect.DefaultOptions), options || {});this.currentFrame = 0;this.state = "idle";this.startOn = this.options.delay * 1000;this.finishOn = this.startOn + this.options.duration * 1000;this.fromToDelta = this.options.to - this.options.from;this.totalTime = this.finishOn - this.startOn;this.totalFrames = this.options.fps * this.options.duration;eval("this.render = function(pos){ " + "if(this.state==\"idle\"){this.state=\"running\";" + codeForEvent(options, "beforeSetup") + (this.setup ? "this.setup();" : "") + codeForEvent(options, "afterSetup") + "};if(this.state==\"running\"){" + "pos=this.options.transition(pos)*" + this.fromToDelta + "+" + this.options.from + ";" + "this.position=pos;" + codeForEvent(options, "beforeUpdate") + (this.update ? "this.update(pos);" : "") + codeForEvent(options, "afterUpdate") + "}}");this.event("beforeStart");if (!this.options.sync) {Effect.Queues.get(typeof this.options.queue == "string" ? "global" : this.options.queue.scope).add(this);}}, loop:function (timePos) {if (timePos >= this.startOn) {if (timePos >= this.finishOn) {this.render(1);this.cancel();this.event("beforeFinish");if (this.finish) {this.finish();}this.event("afterFinish");return;}var pos = (timePos - this.startOn) / this.totalTime, frame = Math.round(pos * this.totalFrames);if (frame > this.currentFrame) {this.render(pos);this.currentFrame = frame;}}}, cancel:function () {if (!this.options.sync) {Effect.Queues.get(typeof this.options.queue == "string" ? "global" : this.options.queue.scope).remove(this);}this.state = "finished";}, event:function (eventName) {if (this.options[eventName + "Internal"]) {this.options[eventName + "Internal"](this);}if (this.options[eventName]) {this.options[eventName](this);}}, inspect:function () {var data = $H();for (property in this) {if (typeof this[property] != "function") {data[property] = this[property];}}return "#<Effect:" + data.inspect() + ",options:" + $H(this.options).inspect() + ">";}};Effect.Parallel = Class.create();Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {initialize:function (effects) {this.effects = effects || [];this.start(arguments[1]);}, update:function (position) {this.effects.invoke("render", position);}, finish:function (position) {this.effects.each(function (effect) {effect.render(1);effect.cancel();effect.event("beforeFinish");if (effect.finish) {effect.finish(position);}effect.event("afterFinish");});}});Effect.Event = Class.create();Object.extend(Object.extend(Effect.Event.prototype, Effect.Base.prototype), {initialize:function () {var options = Object.extend({duration:0}, arguments[0] || {});this.start(options);}, update:Prototype.emptyFunction});Effect.Opacity = Class.create();Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {initialize:function (element) {this.element = $(element);if (!this.element) {throw Effect._elementDoesNotExistError;}if (Prototype.Browser.IE && !this.element.currentStyle.hasLayout) {this.element.setStyle({zoom:1});}var options = Object.extend({from:this.element.getOpacity() || 0, to:1}, arguments[1] || {});this.start(options);}, update:function (position) {this.element.setOpacity(position);}});Effect.Move = Class.create();Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {initialize:function (element) {this.element = $(element);if (!this.element) {throw Effect._elementDoesNotExistError;}var options = Object.extend({x:0, y:0, mode:"relative"}, arguments[1] || {});this.start(options);}, setup:function () {this.element.makePositioned();this.originalLeft = parseFloat(this.element.getStyle("left") || "0");this.originalTop = parseFloat(this.element.getStyle("top") || "0");if (this.options.mode == "absolute") {this.options.x = this.options.x - this.originalLeft;this.options.y = this.options.y - this.originalTop;}}, update:function (position) {this.element.setStyle({left:Math.round(this.options.x * position + this.originalLeft) + "px", top:Math.round(this.options.y * position + this.originalTop) + "px"});}});Effect.MoveBy = function (element, toTop, toLeft) {return new Effect.Move(element, Object.extend({x:toLeft, y:toTop}, arguments[3] || {}));};Effect.Scale = Class.create();Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {initialize:function (element, percent) {this.element = $(element);if (!this.element) {throw Effect._elementDoesNotExistError;}var options = Object.extend({scaleX:true, scaleY:true, scaleContent:true, scaleFromCenter:false, scaleMode:"box", scaleFrom:100, scaleTo:percent}, arguments[2] || {});this.start(options);}, setup:function () {this.restoreAfterFinish = this.options.restoreAfterFinish || false;this.elementPositioning = this.element.getStyle("position");this.originalStyle = {};["top", "left", "width", "height", "fontSize"].each((function (k) {this.originalStyle[k] = this.element.style[k];}).bind(this));this.originalTop = this.element.offsetTop;this.originalLeft = this.element.offsetLeft;var fontSize = this.element.getStyle("font-size") || "100%";["em", "px", "%", "pt"].each((function (fontSizeType) {if (fontSize.indexOf(fontSizeType) > 0) {this.fontSize = parseFloat(fontSize);this.fontSizeType = fontSizeType;}}).bind(this));this.factor = (this.options.scaleTo - this.options.scaleFrom) / 100;this.dims = null;if (this.options.scaleMode == "box") {this.dims = [this.element.offsetHeight, this.element.offsetWidth];}if (/^content/.test(this.options.scaleMode)) {this.dims = [this.element.scrollHeight, this.element.scrollWidth];}if (!this.dims) {this.dims = [this.options.scaleMode.originalHeight, this.options.scaleMode.originalWidth];}}, update:function (position) {var currentScale = this.options.scaleFrom / 100 + this.factor * position;if (this.options.scaleContent && this.fontSize) {this.element.setStyle({fontSize:this.fontSize * currentScale + this.fontSizeType});}this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);}, finish:function (position) {if (this.restoreAfterFinish) {this.element.setStyle(this.originalStyle);}}, setDimensions:function (height, width) {var d = {};if (this.options.scaleX) {d.width = Math.round(width) + "px";}if (this.options.scaleY) {d.height = Math.round(height) + "px";}if (this.options.scaleFromCenter) {var topd = (height - this.dims[0]) / 2;var leftd = (width - this.dims[1]) / 2;if (this.elementPositioning == "absolute") {if (this.options.scaleY) {d.top = this.originalTop - topd + "px";}if (this.options.scaleX) {d.left = this.originalLeft - leftd + "px";}} else {if (this.options.scaleY) {d.top = - topd + "px";}if (this.options.scaleX) {d.left = - leftd + "px";}}}this.element.setStyle(d);}});Effect.Highlight = Class.create();Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {initialize:function (element) {this.element = $(element);if (!this.element) {throw Effect._elementDoesNotExistError;}var options = Object.extend({startcolor:"#ffff99"}, arguments[1] || {});this.start(options);}, setup:function () {if (this.element.getStyle("display") == "none") {this.cancel();return;}this.oldStyle = {};if (!this.options.keepBackgroundImage) {this.oldStyle.backgroundImage = this.element.getStyle("background-image");this.element.setStyle({backgroundImage:"none"});}if (!this.options.endcolor) {this.options.endcolor = this.element.getStyle("background-color").parseColor("#ffffff");}if (!this.options.restorecolor) {this.options.restorecolor = this.element.getStyle("background-color");}this._base = $R(0, 2).map((function (i) {return parseInt(this.options.startcolor.slice(i * 2 + 1, i * 2 + 3), 16);}).bind(this));this._delta = $R(0, 2).map((function (i) {return parseInt(this.options.endcolor.slice(i * 2 + 1, i * 2 + 3), 16) - this._base[i];}).bind(this));}, update:function (position) {this.element.setStyle({backgroundColor:$R(0, 2).inject("#", (function (m, v, i) {return m + Math.round(this._base[i] + this._delta[i] * position).toColorPart();}).bind(this))});}, finish:function () {this.element.setStyle(Object.extend(this.oldStyle, {backgroundColor:this.options.restorecolor}));}});Effect.ScrollTo = Class.create();Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {initialize:function (element) {this.element = $(element);this.start(arguments[1] || {});}, setup:function () {Position.prepare();var offsets = Position.cumulativeOffset(this.element);if (this.options.offset) {offsets[1] += this.options.offset;}var max = window.innerHeight ? window.height - window.innerHeight : document.body.scrollHeight - (document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight);this.scrollStart = Position.deltaY;this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;}, update:function (position) {Position.prepare();window.scrollTo(Position.deltaX, this.scrollStart + position * this.delta);}});Effect.Fade = function (element) {element = $(element);var oldOpacity = element.getInlineOpacity();var options = Object.extend({from:element.getOpacity() || 1, to:0, afterFinishInternal:function (effect) {if (effect.options.to != 0) {return;}effect.element.hide().setStyle({opacity:oldOpacity});}}, arguments[1] || {});return new Effect.Opacity(element, options);};Effect.Appear = function (element) {element = $(element);var options = Object.extend({from:element.getStyle("display") == "none" ? 0 : element.getOpacity() || 0, to:1, afterFinishInternal:function (effect) {effect.element.forceRerendering();}, beforeSetup:function (effect) {effect.element.setOpacity(effect.options.from).show();}}, arguments[1] || {});return new Effect.Opacity(element, options);};Effect.Puff = function (element) {element = $(element);var oldStyle = {opacity:element.getInlineOpacity(), position:element.getStyle("position"), top:element.style.top, left:element.style.left, width:element.style.width, height:element.style.height};return new Effect.Parallel([new Effect.Scale(element, 200, {sync:true, scaleFromCenter:true, scaleContent:true, restoreAfterFinish:true}), new Effect.Opacity(element, {sync:true, to:0})], Object.extend({duration:1, beforeSetupInternal:function (effect) {Position.absolutize(effect.effects[0].element);}, afterFinishInternal:function (effect) {effect.effects[0].element.hide().setStyle(oldStyle);}}, arguments[1] || {}));};Effect.BlindUp = function (element) {element = $(element);element.makeClipping();return new Effect.Scale(element, 0, Object.extend({scaleContent:false, scaleX:false, restoreAfterFinish:true, afterFinishInternal:function (effect) {effect.element.hide().undoClipping();}}, arguments[1] || {}));};Effect.BlindDown = function (element) {element = $(element);var elementDimensions = element.getDimensions();return new Effect.Scale(element, 100, Object.extend({scaleContent:false, scaleX:false, scaleFrom:0, scaleMode:{originalHeight:elementDimensions.height, originalWidth:elementDimensions.width}, restoreAfterFinish:true, afterSetup:function (effect) {effect.element.makeClipping().setStyle({height:"0px"}).show();}, afterFinishInternal:function (effect) {effect.element.undoClipping();}}, arguments[1] || {}));};Effect.SwitchOff = function (element) {element = $(element);var oldOpacity = element.getInlineOpacity();return new Effect.Appear(element, Object.extend({duration:0.4, from:0, transition:Effect.Transitions.flicker, afterFinishInternal:function (effect) {new Effect.Scale(effect.element, 1, {duration:0.3, scaleFromCenter:true, scaleX:false, scaleContent:false, restoreAfterFinish:true, beforeSetup:function (effect) {effect.element.makePositioned().makeClipping();}, afterFinishInternal:function (effect) {effect.element.hide().undoClipping().undoPositioned().setStyle({opacity:oldOpacity});}});}}, arguments[1] || {}));};Effect.DropOut = function (element) {element = $(element);var oldStyle = {top:element.getStyle("top"), left:element.getStyle("left"), opacity:element.getInlineOpacity()};return new Effect.Parallel([new Effect.Move(element, {x:0, y:100, sync:true}), new Effect.Opacity(element, {sync:true, to:0})], Object.extend({duration:0.5, beforeSetup:function (effect) {effect.effects[0].element.makePositioned();}, afterFinishInternal:function (effect) {effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);}}, arguments[1] || {}));};Effect.Shake = function (element) {element = $(element);var oldStyle = {top:element.getStyle("top"), left:element.getStyle("left")};return new Effect.Move(element, {x:20, y:0, duration:0.05, afterFinishInternal:function (effect) {new Effect.Move(effect.element, {x:-40, y:0, duration:0.1, afterFinishInternal:function (effect) {new Effect.Move(effect.element, {x:40, y:0, duration:0.1, afterFinishInternal:function (effect) {new Effect.Move(effect.element, {x:-40, y:0, duration:0.1, afterFinishInternal:function (effect) {new Effect.Move(effect.element, {x:40, y:0, duration:0.1, afterFinishInternal:function (effect) {new Effect.Move(effect.element, {x:-20, y:0, duration:0.05, afterFinishInternal:function (effect) {effect.element.undoPositioned().setStyle(oldStyle);}});}});}});}});}});}});};Effect.SlideDown = function (element) {element = $(element).cleanWhitespace();var oldInnerBottom = element.down().getStyle("bottom");var elementDimensions = element.getDimensions();return new Effect.Scale(element, 100, Object.extend({scaleContent:false, scaleX:false, scaleFrom:window.opera ? 0 : 1, scaleMode:{originalHeight:elementDimensions.height, originalWidth:elementDimensions.width}, restoreAfterFinish:true, afterSetup:function (effect) {effect.element.makePositioned();effect.element.down().makePositioned();if (window.opera) {effect.element.setStyle({top:""});}effect.element.makeClipping().setStyle({height:"0px"}).show();}, afterUpdateInternal:function (effect) {effect.element.down().setStyle({bottom:effect.dims[0] - effect.element.clientHeight + "px"});}, afterFinishInternal:function (effect) {effect.element.undoClipping().undoPositioned();effect.element.down().undoPositioned().setStyle({bottom:oldInnerBottom});}}, arguments[1] || {}));};Effect.SlideUp = function (element) {element = $(element).cleanWhitespace();var oldInnerBottom = element.down().getStyle("bottom");return new Effect.Scale(element, window.opera ? 0 : 1, Object.extend({scaleContent:false, scaleX:false, scaleMode:"box", scaleFrom:100, restoreAfterFinish:true, beforeStartInternal:function (effect) {effect.element.makePositioned();effect.element.down().makePositioned();if (window.opera) {effect.element.setStyle({top:""});}effect.element.makeClipping().show();}, afterUpdateInternal:function (effect) {effect.element.down().setStyle({bottom:effect.dims[0] - effect.element.clientHeight + "px"});}, afterFinishInternal:function (effect) {effect.element.hide().undoClipping().undoPositioned().setStyle({bottom:oldInnerBottom});effect.element.down().undoPositioned();}}, arguments[1] || {}));};Effect.Squish = function (element) {return new Effect.Scale(element, window.opera ? 1 : 0, {restoreAfterFinish:true, beforeSetup:function (effect) {effect.element.makeClipping();}, afterFinishInternal:function (effect) {effect.element.hide().undoClipping();}});};Effect.Grow = function (element) {element = $(element);var options = Object.extend({direction:"center", moveTransition:Effect.Transitions.sinoidal, scaleTransition:Effect.Transitions.sinoidal, opacityTransition:Effect.Transitions.full}, arguments[1] || {});var oldStyle = {top:element.style.top, left:element.style.left, height:element.style.height, width:element.style.width, opacity:element.getInlineOpacity()};var dims = element.getDimensions();var initialMoveX, initialMoveY;var moveX, moveY;switch (options.direction) {case "top-left":initialMoveX = initialMoveY = moveX = moveY = 0;break;case "top-right":initialMoveX = dims.width;initialMoveY = moveY = 0;moveX = - dims.width;break;case "bottom-left":initialMoveX = moveX = 0;initialMoveY = dims.height;moveY = - dims.height;break;case "bottom-right":initialMoveX = dims.width;initialMoveY = dims.height;moveX = - dims.width;moveY = - dims.height;break;case "center":initialMoveX = dims.width / 2;initialMoveY = dims.height / 2;moveX = - dims.width / 2;moveY = - dims.height / 2;break;default:;}return new Effect.Move(element, {x:initialMoveX, y:initialMoveY, duration:0.01, beforeSetup:function (effect) {effect.element.hide().makeClipping().makePositioned();}, afterFinishInternal:function (effect) {new Effect.Parallel([new Effect.Opacity(effect.element, {sync:true, to:1, from:0, transition:options.opacityTransition}), new Effect.Move(effect.element, {x:moveX, y:moveY, sync:true, transition:options.moveTransition}), new Effect.Scale(effect.element, 100, {scaleMode:{originalHeight:dims.height, originalWidth:dims.width}, sync:true, scaleFrom:window.opera ? 1 : 0, transition:options.scaleTransition, restoreAfterFinish:true})], Object.extend({beforeSetup:function (effect) {effect.effects[0].element.setStyle({height:"0px"}).show();}, afterFinishInternal:function (effect) {effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);}}, options));}});};Effect.Shrink = function (element) {element = $(element);var options = Object.extend({direction:"center", moveTransition:Effect.Transitions.sinoidal, scaleTransition:Effect.Transitions.sinoidal, opacityTransition:Effect.Transitions.none}, arguments[1] || {});var oldStyle = {top:element.style.top, left:element.style.left, height:element.style.height, width:element.style.width, opacity:element.getInlineOpacity()};var dims = element.getDimensions();var moveX, moveY;switch (options.direction) {case "top-left":moveX = moveY = 0;break;case "top-right":moveX = dims.width;moveY = 0;break;case "bottom-left":moveX = 0;moveY = dims.height;break;case "bottom-right":moveX = dims.width;moveY = dims.height;break;case "center":moveX = dims.width / 2;moveY = dims.height / 2;break;default:;}return new Effect.Parallel([new Effect.Opacity(element, {sync:true, to:0, from:1, transition:options.opacityTransition}), new Effect.Scale(element, window.opera ? 1 : 0, {sync:true, transition:options.scaleTransition, restoreAfterFinish:true}), new Effect.Move(element, {x:moveX, y:moveY, sync:true, transition:options.moveTransition})], Object.extend({beforeStartInternal:function (effect) {effect.effects[0].element.makePositioned().makeClipping();}, afterFinishInternal:function (effect) {effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle);}}, options));};Effect.Pulsate = function (element) {element = $(element);var options = arguments[1] || {};var oldOpacity = element.getInlineOpacity();var transition = options.transition || Effect.Transitions.sinoidal;var reverser = function (pos) {return transition(1 - Effect.Transitions.pulse(pos, options.pulses));};reverser.bind(transition);return new Effect.Opacity(element, Object.extend(Object.extend({duration:2, from:0, afterFinishInternal:function (effect) {effect.element.setStyle({opacity:oldOpacity});}}, options), {transition:reverser}));};Effect.Fold = function (element) {element = $(element);var oldStyle = {top:element.style.top, left:element.style.left, width:element.style.width, height:element.style.height};element.makeClipping();return new Effect.Scale(element, 5, Object.extend({scaleContent:false, scaleX:false, afterFinishInternal:function (effect) {new Effect.Scale(element, 1, {scaleContent:false, scaleY:false, afterFinishInternal:function (effect) {effect.element.hide().undoClipping().setStyle(oldStyle);}});}}, arguments[1] || {}));};Effect.Morph = Class.create();Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {initialize:function (element) {this.element = $(element);if (!this.element) {throw Effect._elementDoesNotExistError;}var options = Object.extend({style:{}}, arguments[1] || {});if (typeof options.style == "string") {if (options.style.indexOf(":") == -1) {var cssText = "", selector = "." + options.style;$A(document.styleSheets).reverse().each(function (styleSheet) {if (styleSheet.cssRules) {cssRules = styleSheet.cssRules;} else if (styleSheet.rules) {cssRules = styleSheet.rules;}$A(cssRules).reverse().each(function (rule) {if (selector == rule.selectorText) {cssText = rule.style.cssText;throw $break;}});if (cssText) {throw $break;}});this.style = cssText.parseStyle();options.afterFinishInternal = function (effect) {effect.element.addClassName(effect.options.style);effect.transforms.each(function (transform) {if (transform.style != "opacity") {effect.element.style[transform.style] = "";}});};} else {this.style = options.style.parseStyle();}} else {this.style = $H(options.style);}this.start(options);}, setup:function () {
function parseColor(color) {if (!color || ["rgba(0, 0, 0, 0)", "transparent"].include(color)) {color = "#ffffff";}color = color.parseColor();return $R(0, 2).map(function (i) {return parseInt(color.slice(i * 2 + 1, i * 2 + 3), 16);});}
this.transforms = this.style.map((function (pair) {var property = pair[0], value = pair[1], unit = null;if (value.parseColor("#zzzzzz") != "#zzzzzz") {value = value.parseColor();unit = "color";} else if (property == "opacity") {value = parseFloat(value);if (Prototype.Browser.IE && !this.element.currentStyle.hasLayout) {this.element.setStyle({zoom:1});}} else if (Element.CSS_LENGTH.test(value)) {var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);value = parseFloat(components[1]);unit = components.length == 3 ? components[2] : null;}var originalValue = this.element.getStyle(property);return {style:property.camelize(), originalValue:unit == "color" ? parseColor(originalValue) : parseFloat(originalValue || 0), targetValue:unit == "color" ? parseColor(value) : value, unit:unit};}).bind(this)).reject(function (transform) {return transform.originalValue == transform.targetValue || transform.unit != "color" && (isNaN(transform.originalValue) || isNaN(transform.targetValue));});}, update:function (position) {var style = {}, transform, i = this.transforms.length;while (i--) {style[(transform = this.transforms[i]).style] = transform.unit == "color" ? "#" + Math.round(transform.originalValue[0] + (transform.targetValue[0] - transform.originalValue[0]) * position).toColorPart() + Math.round(transform.originalValue[1] + (transform.targetValue[1] - transform.originalValue[1]) * position).toColorPart() + Math.round(transform.originalValue[2] + (transform.targetValue[2] - transform.originalValue[2]) * position).toColorPart() : transform.originalValue + Math.round((transform.targetValue - transform.originalValue) * position * 1000) / 1000 + transform.unit;}this.element.setStyle(style, true);}});Effect.Transform = Class.create();Object.extend(Effect.Transform.prototype, {initialize:function (tracks) {this.tracks = [];this.options = arguments[1] || {};this.addTracks(tracks);}, addTracks:function (tracks) {tracks.each((function (track) {var data = $H(track).values().first();this.tracks.push($H({ids:$H(track).keys().first(), effect:Effect.Morph, options:{style:data}}));}).bind(this));return this;}, play:function () {return new Effect.Parallel(this.tracks.map(function (track) {var elements = [$(track.ids) || $$(track.ids)].flatten();return elements.map(function (e) {return new track.effect(e, Object.extend({sync:true}, track.options));});}).flatten(), this.options);}});Element.CSS_PROPERTIES = $w("backgroundColor backgroundPosition borderBottomColor borderBottomStyle borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth borderRightColor borderRightStyle borderRightWidth borderSpacing borderTopColor borderTopStyle borderTopWidth bottom clip color fontSize fontWeight height left letterSpacing lineHeight marginBottom marginLeft marginRight marginTop markerOffset maxHeight maxWidth minHeight minWidth opacity outlineColor outlineOffset outlineWidth paddingBottom paddingLeft paddingRight paddingTop right textIndent top width wordSpacing zIndex");Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;String.prototype.parseStyle = function () {var element = document.createElement("div");element.innerHTML = "<div style=\"" + this + "\"></div>";var style = element.childNodes[0].style, styleRules = $H();Element.CSS_PROPERTIES.each(function (property) {if (style[property]) {styleRules[property] = style[property];}});if (Prototype.Browser.IE && this.indexOf("opacity") > -1) {styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];}return styleRules;};Element.morph = function (element, style) {new Effect.Morph(element, Object.extend({style:style}, arguments[2] || {}));return element;};["getInlineOpacity", "forceRerendering", "setContentZoom", "collectTextNodes", "collectTextNodesIgnoreClass", "morph"].each(function (f) {Element.Methods[f] = Element[f];});Element.Methods.visualEffect = function (element, effect, options) {s = effect.dasherize().camelize();effect_class = s.charAt(0).toUpperCase() + s.substring(1);new Effect[effect_class](element, options);return $(element);};Element.addMethods();if (typeof Effect == "undefined") {throw "dragdrop.js requires including script.aculo.us' effects.js library";}var Droppables = {drops:[], remove:function (element) {this.drops = this.drops.reject(function (d) {return d.element == $(element);});}, add:function (element) {element = $(element);var options = Object.extend({greedy:true, hoverclass:null, tree:false}, arguments[1] || {});if (options.containment) {options._containers = [];var containment = options.containment;if (typeof containment == "object" && containment.constructor == Array) {containment.each(function (c) {options._containers.push($(c));});} else {options._containers.push($(containment));}}if (options.accept) {options.accept = [options.accept].flatten();}Element.makePositioned(element);options.element = element;this.drops.push(options);}, findDeepestChild:function (drops) {deepest = drops[0];for (i = 1; i < drops.length; ++i) {if (Element.isParent(drops[i].element, deepest.element)) {deepest = drops[i];}}return deepest;}, isContained:function (element, drop) {var containmentNode;if (drop.tree) {containmentNode = element.treeNode;} else {containmentNode = element.parentNode;}return drop._containers.detect(function (c) {return containmentNode == c;});}, isAffected:function (point, element, drop) {return drop.element != element && (!drop._containers || this.isContained(element, drop)) && (!drop.accept || Element.classNames(element).detect(function (v) {return drop.accept.include(v);})) && Position.within(drop.element, point[0], point[1]);}, deactivate:function (drop) {if (drop.hoverclass) {Element.removeClassName(drop.element, drop.hoverclass);}this.last_active = null;}, activate:function (drop) {if (drop.hoverclass) {Element.addClassName(drop.element, drop.hoverclass);}this.last_active = drop;}, show:function (point, element) {if (!this.drops.length) {return;}var affected = [];if (this.last_active) {this.deactivate(this.last_active);}this.drops.each(function (drop) {if (Droppables.isAffected(point, element, drop)) {affected.push(drop);}});if (affected.length > 0) {drop = Droppables.findDeepestChild(affected);Position.within(drop.element, point[0], point[1]);if (drop.onHover) {drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));}Droppables.activate(drop);}}, fire:function (event, element) {if (!this.last_active) {return;}Position.prepare();if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active)) {if (this.last_active.onDrop) {this.last_active.onDrop(element, this.last_active.element, event);return true;}}}, reset:function () {if (this.last_active) {this.deactivate(this.last_active);}}};var Draggables = {drags:[], observers:[], register:function (draggable) {if (this.drags.length == 0) {this.eventMouseUp = this.endDrag.bindAsEventListener(this);this.eventMouseMove = this.updateDrag.bindAsEventListener(this);this.eventKeypress = this.keyPress.bindAsEventListener(this);Event.observe(document, "mouseup", this.eventMouseUp);Event.observe(document, "mousemove", this.eventMouseMove);Event.observe(document, "keypress", this.eventKeypress);}this.drags.push(draggable);}, unregister:function (draggable) {this.drags = this.drags.reject(function (d) {return d == draggable;});if (this.drags.length == 0) {Event.stopObserving(document, "mouseup", this.eventMouseUp);Event.stopObserving(document, "mousemove", this.eventMouseMove);Event.stopObserving(document, "keypress", this.eventKeypress);}}, activate:function (draggable) {if (draggable.options.delay) {this._timeout = setTimeout((function () {Draggables._timeout = null;window.focus();Draggables.activeDraggable = draggable;}).bind(this), draggable.options.delay);} else {window.focus();this.activeDraggable = draggable;}}, deactivate:function () {this.activeDraggable = null;}, updateDrag:function (event) {if (!this.activeDraggable) {return;}var pointer = [Event.pointerX(event), Event.pointerY(event)];if (this._lastPointer && this._lastPointer.inspect() == pointer.inspect()) {return;}this._lastPointer = pointer;this.activeDraggable.updateDrag(event, pointer);}, endDrag:function (event) {if (this._timeout) {clearTimeout(this._timeout);this._timeout = null;}if (!this.activeDraggable) {return;}this._lastPointer = null;this.activeDraggable.endDrag(event);this.activeDraggable = null;}, keyPress:function (event) {if (this.activeDraggable) {this.activeDraggable.keyPress(event);}}, addObserver:function (observer) {this.observers.push(observer);this._cacheObserverCallbacks();}, removeObserver:function (element) {this.observers = this.observers.reject(function (o) {return o.element == element;});this._cacheObserverCallbacks();}, notify:function (eventName, draggable, event) {if (this[eventName + "Count"] > 0) {this.observers.each(function (o) {if (o[eventName]) {o[eventName](eventName, draggable, event);}});}if (draggable.options[eventName]) {draggable.options[eventName](draggable, event);}}, _cacheObserverCallbacks:function () {["onStart", "onEnd", "onDrag"].each(function (eventName) {Draggables[eventName + "Count"] = Draggables.observers.select(function (o) {return o[eventName];}).length;});}};var Draggable = Class.create();Draggable._dragging = {};Draggable.prototype = {initialize:function (element) {var defaults = {handle:false, reverteffect:function (element, top_offset, left_offset) {var dur = Math.sqrt(Math.abs(top_offset ^ 2) + Math.abs(left_offset ^ 2)) * 0.02;new Effect.Move(element, {x:- left_offset, y:- top_offset, duration:dur, queue:{scope:"_draggable", position:"end"}});}, endeffect:function (element) {var toOpacity = typeof element._opacity == "number" ? element._opacity : 1;new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, queue:{scope:"_draggable", position:"end"}, afterFinish:function () {Draggable._dragging[element] = false;}});}, zindex:1000, revert:false, quiet:false, scroll:false, scrollSensitivity:20, scrollSpeed:15, snap:false, delay:0};if (!arguments[1] || typeof arguments[1].endeffect == "undefined") {Object.extend(defaults, {starteffect:function (element) {element._opacity = Element.getOpacity(element);Draggable._dragging[element] = true;new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});}});}var options = Object.extend(defaults, arguments[1] || {});this.element = $(element);if (options.handle && typeof options.handle == "string") {this.handle = this.element.down("." + options.handle, 0);}if (!this.handle) {this.handle = $(options.handle);}if (!this.handle) {this.handle = this.element;}if (options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {options.scroll = $(options.scroll);this._isScrollChild = Element.childOf(this.element, options.scroll);}Element.makePositioned(this.element);this.delta = this.currentDelta();this.options = options;this.dragging = false;this.eventMouseDown = this.initDrag.bindAsEventListener(this);Event.observe(this.handle, "mousedown", this.eventMouseDown);Draggables.register(this);}, destroy:function () {Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);Draggables.unregister(this);}, currentDelta:function () {return [parseInt(Element.getStyle(this.element, "left") || "0"), parseInt(Element.getStyle(this.element, "top") || "0")];}, initDrag:function (event) {if (typeof Draggable._dragging[this.element] != "undefined" && Draggable._dragging[this.element]) {return;}if (Event.isLeftClick(event)) {var src = Event.element(event);if ((tag_name = src.tagName.toUpperCase()) && (tag_name == "INPUT" || tag_name == "SELECT" || tag_name == "OPTION" || tag_name == "BUTTON" || tag_name == "TEXTAREA")) {return;}var pointer = [Event.pointerX(event), Event.pointerY(event)];var pos = Position.cumulativeOffset(this.element);this.offset = [0, 1].map(function (i) {return pointer[i] - pos[i];});Draggables.activate(this);Event.stop(event);}}, startDrag:function (event) {this.dragging = true;if (this.options.zindex) {this.originalZ = parseInt(Element.getStyle(this.element, "z-index") || 0);this.element.style.zIndex = this.options.zindex;}if (this.options.ghosting) {this._clone = this.element.cloneNode(true);Position.absolutize(this.element);this.element.parentNode.insertBefore(this._clone, this.element);}if (this.options.scroll) {if (this.options.scroll == window) {var where = this._getWindowScroll(this.options.scroll);this.originalScrollLeft = where.left;this.originalScrollTop = where.top;} else {this.originalScrollLeft = this.options.scroll.scrollLeft;this.originalScrollTop = this.options.scroll.scrollTop;}}Draggables.notify("onStart", this, event);if (this.options.starteffect) {this.options.starteffect(this.element);}}, updateDrag:function (event, pointer) {if (!this.dragging) {this.startDrag(event);}if (!this.options.quiet) {Position.prepare();Droppables.show(pointer, this.element);}Draggables.notify("onDrag", this, event);this.draw(pointer);if (this.options.change) {this.options.change(this);}if (this.options.scroll) {this.stopScrolling();var p;if (this.options.scroll == window) {with (this._getWindowScroll(this.options.scroll)) {p = [left, top, left + width, top + height];}} else {p = Position.page(this.options.scroll);p[0] += this.options.scroll.scrollLeft + Position.deltaX;p[1] += this.options.scroll.scrollTop + Position.deltaY;p.push(p[0] + this.options.scroll.offsetWidth);p.push(p[1] + this.options.scroll.offsetHeight);}var speed = [0, 0];if (pointer[0] < p[0] + this.options.scrollSensitivity) {speed[0] = pointer[0] - (p[0] + this.options.scrollSensitivity);}if (pointer[1] < p[1] + this.options.scrollSensitivity) {speed[1] = pointer[1] - (p[1] + this.options.scrollSensitivity);}if (pointer[0] > p[2] - this.options.scrollSensitivity) {speed[0] = pointer[0] - (p[2] - this.options.scrollSensitivity);}if (pointer[1] > p[3] - this.options.scrollSensitivity) {speed[1] = pointer[1] - (p[3] - this.options.scrollSensitivity);}this.startScrolling(speed);}if (Prototype.Browser.WebKit) {window.scrollBy(0, 0);}Event.stop(event);}, finishDrag:function (event, success) {this.dragging = false;if (this.options.quiet) {Position.prepare();var pointer = [Event.pointerX(event), Event.pointerY(event)];Droppables.show(pointer, this.element);}if (this.options.ghosting) {Position.relativize(this.element);Element.remove(this._clone);this._clone = null;}var dropped = false;if (success) {dropped = Droppables.fire(event, this.element);if (!dropped) {dropped = false;}}if (dropped && this.options.onDropped) {this.options.onDropped(this.element);}Draggables.notify("onEnd", this, event);var revert = this.options.revert;if (revert && typeof revert == "function") {revert = revert(this.element);}var d = this.currentDelta();if (revert && this.options.reverteffect) {if (dropped == 0 || revert != "failure") {this.options.reverteffect(this.element, d[1] - this.delta[1], d[0] - this.delta[0]);}} else {this.delta = d;}if (this.options.zindex) {this.element.style.zIndex = this.originalZ;}if (this.options.endeffect) {this.options.endeffect(this.element);}Draggables.deactivate(this);Droppables.reset();}, keyPress:function (event) {if (event.keyCode != Event.KEY_ESC) {return;}this.finishDrag(event, false);Event.stop(event);}, endDrag:function (event) {if (!this.dragging) {return;}this.stopScrolling();this.finishDrag(event, true);Event.stop(event);}, draw:function (point) {var pos = Position.cumulativeOffset(this.element);if (this.options.ghosting) {var r = Position.realOffset(this.element);pos[0] += r[0] - Position.deltaX;pos[1] += r[1] - Position.deltaY;}var d = this.currentDelta();pos[0] -= d[0];pos[1] -= d[1];if (this.options.scroll && this.options.scroll != window && this._isScrollChild) {pos[0] -= this.options.scroll.scrollLeft - this.originalScrollLeft;pos[1] -= this.options.scroll.scrollTop - this.originalScrollTop;}var p = [0, 1].map((function (i) {return point[i] - pos[i] - this.offset[i];}).bind(this));if (this.options.snap) {if (typeof this.options.snap == "function") {p = this.options.snap(p[0], p[1], this);} else {if (this.options.snap instanceof Array) {p = p.map((function (v, i) {return Math.round(v / this.options.snap[i]) * this.options.snap[i];}).bind(this));} else {p = p.map((function (v) {return Math.round(v / this.options.snap) * this.options.snap;}).bind(this));}}}var style = this.element.style;if (!this.options.constraint || this.options.constraint == "horizontal") {style.left = p[0] + "px";}if (!this.options.constraint || this.options.constraint == "vertical") {style.top = p[1] + "px";}if (style.visibility == "hidden") {style.visibility = "";}}, stopScrolling:function () {if (this.scrollInterval) {clearInterval(this.scrollInterval);this.scrollInterval = null;Draggables._lastScrollPointer = null;}}, startScrolling:function (speed) {if (!(speed[0] || speed[1])) {return;}this.scrollSpeed = [speed[0] * this.options.scrollSpeed, speed[1] * this.options.scrollSpeed];this.lastScrolled = new Date;this.scrollInterval = setInterval(this.scroll.bind(this), 10);}, scroll:function () {var current = new Date;var delta = current - this.lastScrolled;this.lastScrolled = current;if (this.options.scroll == window) {with (this._getWindowScroll(this.options.scroll)) {if (this.scrollSpeed[0] || this.scrollSpeed[1]) {var d = delta / 1000;this.options.scroll.scrollTo(left + d * this.scrollSpeed[0], top + d * this.scrollSpeed[1]);}}} else {this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;}Position.prepare();Droppables.show(Draggables._lastPointer, this.element);Draggables.notify("onDrag", this);if (this._isScrollChild) {Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;if (Draggables._lastScrollPointer[0] < 0) {Draggables._lastScrollPointer[0] = 0;}if (Draggables._lastScrollPointer[1] < 0) {Draggables._lastScrollPointer[1] = 0;}this.draw(Draggables._lastScrollPointer);}if (this.options.change) {this.options.change(this);}}, _getWindowScroll:function (w) {var T, L, W, H;with (w.document) {if (w.document.documentElement && documentElement.scrollTop) {T = documentElement.scrollTop;L = documentElement.scrollLeft;} else if (w.document.body) {T = body.scrollTop;L = body.scrollLeft;}if (w.innerWidth) {W = w.innerWidth;H = w.innerHeight;} else if (w.document.documentElement && documentElement.clientWidth) {W = documentElement.clientWidth;H = documentElement.clientHeight;} else {W = body.offsetWidth;H = body.offsetHeight;}}return {top:T, left:L, width:W, height:H};}};var SortableObserver = Class.create();SortableObserver.prototype = {initialize:function (element, observer) {this.element = $(element);this.observer = observer;this.lastValue = Sortable.serialize(this.element);}, onStart:function () {this.lastValue = Sortable.serialize(this.element);}, onEnd:function () {Sortable.unmark();if (this.lastValue != Sortable.serialize(this.element)) {this.observer(this.element);}}};var Sortable = {SERIALIZE_RULE:/^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/, sortables:{}, _findRootElement:function (element) {while (element.tagName.toUpperCase() != "BODY") {if (element.id && Sortable.sortables[element.id]) {return element;}element = element.parentNode;}}, options:function (element) {element = Sortable._findRootElement($(element));if (!element) {return;}return Sortable.sortables[element.id];}, destroy:function (element) {var s = Sortable.options(element);if (s) {Draggables.removeObserver(s.element);s.droppables.each(function (d) {Droppables.remove(d);});s.draggables.invoke("destroy");delete Sortable.sortables[s.element.id];}}, create:function (element) {element = $(element);var options = Object.extend({element:element, tag:"li", dropOnEmpty:false, tree:false, treeTag:"ul", overlap:"vertical", constraint:"vertical", containment:element, handle:false, only:false, delay:0, hoverclass:null, ghosting:false, quiet:false, scroll:false, scrollSensitivity:20, scrollSpeed:15, format:this.SERIALIZE_RULE, elements:false, handles:false, onChange:Prototype.emptyFunction, onUpdate:Prototype.emptyFunction}, arguments[1] || {});this.destroy(element);var options_for_draggable = {revert:true, quiet:options.quiet, scroll:options.scroll, scrollSpeed:options.scrollSpeed, scrollSensitivity:options.scrollSensitivity, delay:options.delay, ghosting:options.ghosting, constraint:options.constraint, handle:options.handle};if (options.starteffect) {options_for_draggable.starteffect = options.starteffect;}if (options.reverteffect) {options_for_draggable.reverteffect = options.reverteffect;} else if (options.ghosting) {options_for_draggable.reverteffect = function (element) {element.style.top = 0;element.style.left = 0;};}if (options.endeffect) {options_for_draggable.endeffect = options.endeffect;}if (options.zindex) {options_for_draggable.zindex = options.zindex;}var options_for_droppable = {overlap:options.overlap, containment:options.containment, tree:options.tree, hoverclass:options.hoverclass, onHover:Sortable.onHover};var options_for_tree = {onHover:Sortable.onEmptyHover, overlap:options.overlap, containment:options.containment, hoverclass:options.hoverclass};Element.cleanWhitespace(element);options.draggables = [];options.droppables = [];if (options.dropOnEmpty || options.tree) {Droppables.add(element, options_for_tree);options.droppables.push(element);}(options.elements || this.findElements(element, options) || []).each(function (e, i) {var handle = options.handles ? $(options.handles[i]) : options.handle ? $(e).getElementsByClassName(options.handle)[0] : e;options.draggables.push(new Draggable(e, Object.extend(options_for_draggable, {handle:handle})));Droppables.add(e, options_for_droppable);if (options.tree) {e.treeNode = element;}options.droppables.push(e);});if (options.tree) {(Sortable.findTreeElements(element, options) || []).each(function (e) {Droppables.add(e, options_for_tree);e.treeNode = element;options.droppables.push(e);});}this.sortables[element.id] = options;Draggables.addObserver(new SortableObserver(element, options.onUpdate));}, findElements:function (element, options) {return Element.findChildren(element, options.only, options.tree ? true : false, options.tag);}, findTreeElements:function (element, options) {return Element.findChildren(element, options.only, options.tree ? true : false, options.treeTag);}, onHover:function (element, dropon, overlap) {if (Element.isParent(dropon, element)) {return;}if (overlap > 0.33 && overlap < 0.66 && Sortable.options(dropon).tree) {return;} else if (overlap > 0.5) {Sortable.mark(dropon, "before");if (dropon.previousSibling != element) {var oldParentNode = element.parentNode;element.style.visibility = "hidden";dropon.parentNode.insertBefore(element, dropon);if (dropon.parentNode != oldParentNode) {Sortable.options(oldParentNode).onChange(element);}Sortable.options(dropon.parentNode).onChange(element);}} else {Sortable.mark(dropon, "after");var nextElement = dropon.nextSibling || null;if (nextElement != element) {var oldParentNode = element.parentNode;element.style.visibility = "hidden";dropon.parentNode.insertBefore(element, nextElement);if (dropon.parentNode != oldParentNode) {Sortable.options(oldParentNode).onChange(element);}Sortable.options(dropon.parentNode).onChange(element);}}}, onEmptyHover:function (element, dropon, overlap) {var oldParentNode = element.parentNode;var droponOptions = Sortable.options(dropon);if (!Element.isParent(dropon, element)) {var index;var children = Sortable.findElements(dropon, {tag:droponOptions.tag, only:droponOptions.only});var child = null;if (children) {var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1 - overlap);for (index = 0; index < children.length; index += 1) {if (offset - Element.offsetSize(children[index], droponOptions.overlap) >= 0) {offset -= Element.offsetSize(children[index], droponOptions.overlap);} else if (offset - Element.offsetSize(children[index], droponOptions.overlap) / 2 >= 0) {child = index + 1 < children.length ? children[index + 1] : null;break;} else {child = children[index];break;}}}dropon.insertBefore(element, child);Sortable.options(oldParentNode).onChange(element);droponOptions.onChange(element);}}, unmark:function () {if (Sortable._marker) {Sortable._marker.hide();}}, mark:function (dropon, position) {var sortable = Sortable.options(dropon.parentNode);if (sortable && !sortable.ghosting) {return;}if (!Sortable._marker) {Sortable._marker = ($("dropmarker") || Element.extend(document.createElement("DIV"))).hide().addClassName("dropmarker").setStyle({position:"absolute"});document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);}var offsets = Position.cumulativeOffset(dropon);Sortable._marker.setStyle({left:offsets[0] + "px", top:offsets[1] + "px"});if (position == "after") {if (sortable.overlap == "horizontal") {Sortable._marker.setStyle({left:offsets[0] + dropon.clientWidth + "px"});} else {Sortable._marker.setStyle({top:offsets[1] + dropon.clientHeight + "px"});}}Sortable._marker.show();}, _tree:function (element, options, parent) {var children = Sortable.findElements(element, options) || [];for (var i = 0; i < children.length; ++i) {var match = children[i].id.match(options.format);if (!match) {continue;}var child = {id:encodeURIComponent(match ? match[1] : null), element:element, parent:parent, children:[], position:parent.children.length, container:$(children[i]).down(options.treeTag)};if (child.container) {this._tree(child.container, options, child);}parent.children.push(child);}return parent;}, tree:function (element) {element = $(element);var sortableOptions = this.options(element);var options = Object.extend({tag:sortableOptions.tag, treeTag:sortableOptions.treeTag, only:sortableOptions.only, name:element.id, format:sortableOptions.format}, arguments[1] || {});var root = {id:null, parent:null, children:[], container:element, position:0};return Sortable._tree(element, options, root);}, _constructIndex:function (node) {var index = "";do {if (node.id) {index = "[" + node.position + "]" + index;}} while ((node = node.parent) != null);return index;}, sequence:function (element) {element = $(element);var options = Object.extend(this.options(element), arguments[1] || {});return $(this.findElements(element, options) || []).map(function (item) {return item.id.match(options.format) ? item.id.match(options.format)[1] : "";});}, setSequence:function (element, new_sequence) {element = $(element);var options = Object.extend(this.options(element), arguments[2] || {});var nodeMap = {};this.findElements(element, options).each(function (n) {if (n.id.match(options.format)) {nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];}n.parentNode.removeChild(n);});new_sequence.each(function (ident) {var n = nodeMap[ident];if (n) {n[1].appendChild(n[0]);delete nodeMap[ident];}});}, serialize:function (element) {element = $(element);var options = Object.extend(Sortable.options(element), arguments[1] || {});var name = encodeURIComponent(arguments[1] && arguments[1].name ? arguments[1].name : element.id);if (options.tree) {return Sortable.tree(element, arguments[1]).children.map(function (item) {return [name + Sortable._constructIndex(item) + "[id]=" + encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));}).flatten().join("&");} else {return Sortable.sequence(element, arguments[1]).map(function (item) {return name + "[]=" + encodeURIComponent(item);}).join("&");}}};Element.isParent = function (child, element) {if (!child.parentNode || child == element) {return false;}if (child.parentNode == element) {return true;}return Element.isParent(child.parentNode, element);};Element.findChildren = function (element, only, recursive, tagName) {if (!element.hasChildNodes()) {return null;}tagName = tagName.toUpperCase();if (only) {only = [only].flatten();}var elements = [];$A(element.childNodes).each(function (e) {if (e.tagName && e.tagName.toUpperCase() == tagName && (!only || Element.classNames(e).detect(function (v) {return only.include(v);}))) {elements.push(e);}if (recursive) {var grandchildren = Element.findChildren(e, only, recursive, tagName);if (grandchildren) {elements.push(grandchildren);}}});return elements.length > 0 ? elements.flatten() : [];};Element.offsetSize = function (element, type) {return element["offset" + (type == "vertical" || type == "height" ? "Height" : "Width")];};if (typeof Effect == "undefined") {throw "controls.js requires including script.aculo.us' effects.js library";}var Autocompleter = {};Autocompleter.Base = function () {};Autocompleter.Base.prototype = {baseInitialize:function (element, update, options) {element = $(element);this.element = element;this.update = $(update);this.hasFocus = false;this.changed = false;this.active = false;this.index = 0;this.entryCount = 0;if (this.setOptions) {this.setOptions(options);} else {this.options = options || {};}this.options.paramName = this.options.paramName || this.element.name;this.options.tokens = this.options.tokens || [];this.options.frequency = this.options.frequency || 0.4;this.options.minChars = this.options.minChars || 1;this.options.onShow = this.options.onShow || function (element, update) {if (!update.style.position || update.style.position == "absolute") {update.style.position = "absolute";Position.clone(element, update, {setHeight:false, offsetTop:element.offsetHeight});}Effect.Appear(update, {duration:0.15});};this.options.onHide = this.options.onHide || function (element, update) {new Effect.Fade(update, {duration:0.15});};if (typeof this.options.tokens == "string") {this.options.tokens = new Array(this.options.tokens);}this.observer = null;this.element.setAttribute("autocomplete", "off");Element.hide(this.update);Event.observe(this.element, "blur", this.onBlur.bindAsEventListener(this));Event.observe(this.element, "keypress", this.onKeyPress.bindAsEventListener(this));Event.observe(window, "beforeunload", function () {element.setAttribute("autocomplete", "on");});}, show:function () {if (Element.getStyle(this.update, "display") == "none") {this.options.onShow(this.element, this.update);}if (!this.iefix && Prototype.Browser.IE && Element.getStyle(this.update, "position") == "absolute") {new Insertion.After(this.update, "<iframe id=\"" + this.update.id + "_iefix\" " + "style=\"display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);\" " + "src=\"javascript:false;\" frameborder=\"0\" scrolling=\"no\"></iframe>");this.iefix = $(this.update.id + "_iefix");}if (this.iefix) {setTimeout(this.fixIEOverlapping.bind(this), 50);}}, fixIEOverlapping:function () {Position.clone(this.update, this.iefix, {setTop:!this.update.style.height});this.iefix.style.zIndex = 1;this.update.style.zIndex = 2;Element.show(this.iefix);}, hide:function () {this.stopIndicator();if (Element.getStyle(this.update, "display") != "none") {this.options.onHide(this.element, this.update);}if (this.iefix) {Element.hide(this.iefix);}}, startIndicator:function () {if (this.options.indicator) {Element.show(this.options.indicator);}}, stopIndicator:function () {if (this.options.indicator) {Element.hide(this.options.indicator);}}, onKeyPress:function (event) {if (this.active) {switch (event.keyCode) {case Event.KEY_TAB:case Event.KEY_RETURN:this.selectEntry();Event.stop(event);case Event.KEY_ESC:this.hide();this.active = false;Event.stop(event);return;case Event.KEY_LEFT:case Event.KEY_RIGHT:return;case Event.KEY_UP:this.markPrevious();this.render();if (Prototype.Browser.WebKit) {Event.stop(event);}return;case Event.KEY_DOWN:this.markNext();this.render();if (Prototype.Browser.WebKit) {Event.stop(event);}return;default:;}} else if (event.keyCode == Event.KEY_TAB || event.keyCode == Event.KEY_RETURN || Prototype.Browser.WebKit > 0 && event.keyCode == 0) {return;}this.changed = true;this.hasFocus = true;if (this.observer) {clearTimeout(this.observer);}this.observer = setTimeout(this.onObserverEvent.bind(this), this.options.frequency * 1000);}, activate:function () {this.changed = false;this.hasFocus = true;this.getUpdatedChoices();}, onHover:function (event) {var element = Event.findElement(event, "LI");if (this.index != element.autocompleteIndex) {this.index = element.autocompleteIndex;this.render();}Event.stop(event);}, onClick:function (event) {var element = Event.findElement(event, "LI");this.index = element.autocompleteIndex;this.selectEntry();this.hide();}, onBlur:function (event) {setTimeout(this.hide.bind(this), 250);this.hasFocus = false;this.active = false;}, render:function () {if (this.entryCount > 0) {for (var i = 0; i < this.entryCount; i++) {this.index == i ? Element.addClassName(this.getEntry(i), "selected") : Element.removeClassName(this.getEntry(i), "selected");}if (this.hasFocus) {this.show();this.active = true;}} else {this.active = false;this.hide();}}, markPrevious:function () {if (this.index > 0) {this.index--;} else {this.index = this.entryCount - 1;}this.getEntry(this.index).scrollIntoView(true);}, markNext:function () {if (this.index < this.entryCount - 1) {this.index++;} else {this.index = 0;}this.getEntry(this.index).scrollIntoView(false);}, getEntry:function (index) {return this.update.firstChild.childNodes[index];}, getCurrentEntry:function () {return this.getEntry(this.index);}, selectEntry:function () {this.active = false;this.updateElement(this.getCurrentEntry());}, updateElement:function (selectedElement) {if (this.options.updateElement) {this.options.updateElement(selectedElement);return;}var value = "";if (this.options.select) {var nodes = document.getElementsByClassName(this.options.select, selectedElement) || [];if (nodes.length > 0) {value = Element.collectTextNodes(nodes[0], this.options.select);}} else {value = Element.collectTextNodesIgnoreClass(selectedElement, "informal");}var lastTokenPos = this.findLastToken();if (lastTokenPos != -1) {var newValue = this.element.value.substr(0, lastTokenPos + 1);var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/);if (whitespace) {newValue += whitespace[0];}this.element.value = newValue + value;} else {this.element.value = value;}this.element.focus();if (this.options.afterUpdateElement) {this.options.afterUpdateElement(this.element, selectedElement);}}, updateChoices:function (choices) {if (!this.changed && this.hasFocus) {this.update.innerHTML = choices;Element.cleanWhitespace(this.update);Element.cleanWhitespace(this.update.down());if (this.update.firstChild && this.update.down().childNodes) {this.entryCount = this.update.down().childNodes.length;for (var i = 0; i < this.entryCount; i++) {var entry = this.getEntry(i);entry.autocompleteIndex = i;this.addObservers(entry);}} else {this.entryCount = 0;}this.stopIndicator();this.index = 0;if (this.entryCount == 1 && this.options.autoSelect) {this.selectEntry();this.hide();} else {this.render();}}}, addObservers:function (element) {Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));Event.observe(element, "click", this.onClick.bindAsEventListener(this));}, onObserverEvent:function () {this.changed = false;if (this.getToken().length >= this.options.minChars) {this.getUpdatedChoices();} else {this.active = false;this.hide();}}, getToken:function () {var tokenPos = this.findLastToken();if (tokenPos != -1) {var ret = this.element.value.substr(tokenPos + 1).replace(/^\s+/, "").replace(/\s+$/, "");} else {var ret = this.element.value;}return /\n/.test(ret) ? "" : ret;}, findLastToken:function () {var lastTokenPos = -1;for (var i = 0; i < this.options.tokens.length; i++) {var thisTokenPos = this.element.value.lastIndexOf(this.options.tokens[i]);if (thisTokenPos > lastTokenPos) {lastTokenPos = thisTokenPos;}}return lastTokenPos;}};Ajax.Autocompleter = Class.create();Object.extend(Object.extend(Ajax.Autocompleter.prototype, Autocompleter.Base.prototype), {initialize:function (element, update, url, options) {this.baseInitialize(element, update, options);this.options.asynchronous = true;this.options.onComplete = this.onComplete.bind(this);this.options.defaultParams = this.options.parameters || null;this.url = url;}, getUpdatedChoices:function () {this.startIndicator();var entry = encodeURIComponent(this.options.paramName) + "=" + encodeURIComponent(this.getToken());this.options.parameters = this.options.callback ? this.options.callback(this.element, entry) : entry;if (this.options.defaultParams) {this.options.parameters += "&" + this.options.defaultParams;}new Ajax.Request(this.url, this.options);}, onComplete:function (request) {this.updateChoices(request.responseText);}});Autocompleter.Local = Class.create();Autocompleter.Local.prototype = Object.extend(new Autocompleter.Base, {initialize:function (element, update, array, options) {this.baseInitialize(element, update, options);this.options.array = array;}, getUpdatedChoices:function () {this.updateChoices(this.options.selector(this));}, setOptions:function (options) {this.options = Object.extend({choices:10, partialSearch:true, partialChars:2, ignoreCase:true, fullSearch:false, selector:function (instance) {var ret = [];var partial = [];var entry = instance.getToken();var count = 0;for (var i = 0; i < instance.options.array.length && ret.length < instance.options.choices; i++) {var elem = instance.options.array[i];var foundPos = instance.options.ignoreCase ? elem.toLowerCase().indexOf(entry.toLowerCase()) : elem.indexOf(entry);while (foundPos != -1) {if (foundPos == 0 && elem.length != entry.length) {ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + elem.substr(entry.length) + "</li>");break;} else if (entry.length >= instance.options.partialChars && instance.options.partialSearch && foundPos != -1) {if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos - 1, 1))) {partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" + elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(foundPos + entry.length) + "</li>");break;}}foundPos = instance.options.ignoreCase ? elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : elem.indexOf(entry, foundPos + 1);}}if (partial.length) {ret = ret.concat(partial.slice(0, instance.options.choices - ret.length));}return "<ul>" + ret.join("") + "</ul>";}}, options || {});}});Field.scrollFreeActivate = function (field) {setTimeout(function () {Field.activate(field);}, 1);};Ajax.InPlaceEditor = Class.create();Ajax.InPlaceEditor.defaultHighlightColor = "#FFFF99";Ajax.InPlaceEditor.prototype = {initialize:function (element, url, options) {this.url = url;this.element = $(element);this.options = Object.extend({paramName:"value", okButton:true, okLink:false, okText:"ok", cancelButton:false, cancelLink:true, cancelText:"cancel", textBeforeControls:"", textBetweenControls:"", textAfterControls:"", savingText:"Saving...", clickToEditText:"Click to edit", okText:"ok", rows:1, onComplete:function (transport, element) {new Effect.Highlight(element, {startcolor:this.options.highlightcolor});}, onFailure:function (transport) {alert("Error communicating with the server: " + transport.responseText.stripTags());}, callback:function (form) {return Form.serialize(form);}, handleLineBreaks:true, loadingText:"Loading...", savingClassName:"inplaceeditor-saving", loadingClassName:"inplaceeditor-loading", formClassName:"inplaceeditor-form", highlightcolor:Ajax.InPlaceEditor.defaultHighlightColor, highlightendcolor:"#FFFFFF", externalControl:null, submitOnBlur:false, ajaxOptions:{}, evalScripts:false}, options || {});if (!this.options.formId && this.element.id) {this.options.formId = this.element.id + "-inplaceeditor";if ($(this.options.formId)) {this.options.formId = null;}}if (this.options.externalControl) {this.options.externalControl = $(this.options.externalControl);}this.originalBackground = Element.getStyle(this.element, "background-color");if (!this.originalBackground) {this.originalBackground = "transparent";}this.element.title = this.options.clickToEditText;this.onclickListener = this.enterEditMode.bindAsEventListener(this);this.mouseoverListener = this.enterHover.bindAsEventListener(this);this.mouseoutListener = this.leaveHover.bindAsEventListener(this);Event.observe(this.element, "click", this.onclickListener);Event.observe(this.element, "mouseover", this.mouseoverListener);Event.observe(this.element, "mouseout", this.mouseoutListener);if (this.options.externalControl) {Event.observe(this.options.externalControl, "click", this.onclickListener);Event.observe(this.options.externalControl, "mouseover", this.mouseoverListener);Event.observe(this.options.externalControl, "mouseout", this.mouseoutListener);}}, enterEditMode:function (evt) {if (this.saving) {return;}if (this.editing) {return;}this.editing = true;this.onEnterEditMode();if (this.options.externalControl) {Element.hide(this.options.externalControl);}Element.hide(this.element);this.createForm();this.element.parentNode.insertBefore(this.form, this.element);if (!this.options.loadTextURL) {Field.scrollFreeActivate(this.editField);}if (evt) {Event.stop(evt);}return false;}, createForm:function () {this.form = document.createElement("form");this.form.id = this.options.formId;Element.addClassName(this.form, this.options.formClassName);this.form.onsubmit = this.onSubmit.bind(this);this.createEditField();if (this.options.textarea) {var br = document.createElement("br");this.form.appendChild(br);}if (this.options.textBeforeControls) {this.form.appendChild(document.createTextNode(this.options.textBeforeControls));}if (this.options.okButton) {var okButton = document.createElement("input");okButton.type = "submit";okButton.value = this.options.okText;okButton.className = "editor_ok_button";this.form.appendChild(okButton);}if (this.options.okLink) {var okLink = document.createElement("a");okLink.href = "#";okLink.appendChild(document.createTextNode(this.options.okText));okLink.onclick = this.onSubmit.bind(this);okLink.className = "editor_ok_link";this.form.appendChild(okLink);}if (this.options.textBetweenControls && (this.options.okLink || this.options.okButton) && (this.options.cancelLink || this.options.cancelButton)) {this.form.appendChild(document.createTextNode(this.options.textBetweenControls));}if (this.options.cancelButton) {var cancelButton = document.createElement("input");cancelButton.type = "submit";cancelButton.value = this.options.cancelText;cancelButton.onclick = this.onclickCancel.bind(this);cancelButton.className = "editor_cancel_button";this.form.appendChild(cancelButton);}if (this.options.cancelLink) {var cancelLink = document.createElement("a");cancelLink.href = "#";cancelLink.appendChild(document.createTextNode(this.options.cancelText));cancelLink.onclick = this.onclickCancel.bind(this);cancelLink.className = "editor_cancel editor_cancel_link";this.form.appendChild(cancelLink);}if (this.options.textAfterControls) {this.form.appendChild(document.createTextNode(this.options.textAfterControls));}}, hasHTMLLineBreaks:function (string) {if (!this.options.handleLineBreaks) {return false;}return string.match(/<br/i) || string.match(/<p>/i);}, convertHTMLLineBreaks:function (string) {return string.replace(/<br>/gi, "\n").replace(/<br\/>/gi, "\n").replace(/<\/p>/gi, "\n").replace(/<p>/gi, "");}, createEditField:function () {var text;if (this.options.loadTextURL) {text = this.options.loadingText;} else {text = this.getText();}var obj = this;if (this.options.rows == 1 && !this.hasHTMLLineBreaks(text)) {this.options.textarea = false;var textField = document.createElement("input");textField.obj = this;textField.type = "text";textField.name = this.options.paramName;textField.value = text;textField.style.backgroundColor = this.options.highlightcolor;textField.className = "editor_field";var size = this.options.size || this.options.cols || 0;if (size != 0) {textField.size = size;}if (this.options.submitOnBlur) {textField.onblur = this.onSubmit.bind(this);}this.editField = textField;} else {this.options.textarea = true;var textArea = document.createElement("textarea");textArea.obj = this;textArea.name = this.options.paramName;textArea.value = this.convertHTMLLineBreaks(text);textArea.rows = this.options.rows;textArea.cols = this.options.cols || 40;textArea.className = "editor_field";if (this.options.submitOnBlur) {textArea.onblur = this.onSubmit.bind(this);}this.editField = textArea;}if (this.options.loadTextURL) {this.loadExternalText();}this.form.appendChild(this.editField);}, getText:function () {return this.element.innerHTML;}, loadExternalText:function () {Element.addClassName(this.form, this.options.loadingClassName);this.editField.disabled = true;new Ajax.Request(this.options.loadTextURL, Object.extend({asynchronous:true, onComplete:this.onLoadedExternalText.bind(this)}, this.options.ajaxOptions));}, onLoadedExternalText:function (transport) {Element.removeClassName(this.form, this.options.loadingClassName);this.editField.disabled = false;this.editField.value = transport.responseText.stripTags();Field.scrollFreeActivate(this.editField);}, onclickCancel:function () {this.onComplete();this.leaveEditMode();return false;}, onFailure:function (transport) {this.options.onFailure(transport);if (this.oldInnerHTML) {this.element.innerHTML = this.oldInnerHTML;this.oldInnerHTML = null;}return false;}, onSubmit:function () {var form = this.form;var value = this.editField.value;this.onLoading();if (this.options.evalScripts) {new Ajax.Request(this.url, Object.extend({parameters:this.options.callback(form, value), onComplete:this.onComplete.bind(this), onFailure:this.onFailure.bind(this), asynchronous:true, evalScripts:true}, this.options.ajaxOptions));} else {new Ajax.Updater({success:this.element, failure:null}, this.url, Object.extend({parameters:this.options.callback(form, value), onComplete:this.onComplete.bind(this), onFailure:this.onFailure.bind(this)}, this.options.ajaxOptions));}if (arguments.length > 1) {Event.stop(arguments[0]);}return false;}, onLoading:function () {this.saving = true;this.removeForm();this.leaveHover();this.showSaving();}, showSaving:function () {this.oldInnerHTML = this.element.innerHTML;this.element.innerHTML = this.options.savingText;Element.addClassName(this.element, this.options.savingClassName);this.element.style.backgroundColor = this.originalBackground;Element.show(this.element);}, removeForm:function () {if (this.form) {if (this.form.parentNode) {Element.remove(this.form);}this.form = null;}}, enterHover:function () {if (this.saving) {return;}this.element.style.backgroundColor = this.options.highlightcolor;if (this.effect) {this.effect.cancel();}Element.addClassName(this.element, this.options.hoverClassName);}, leaveHover:function () {if (this.options.backgroundColor) {this.element.style.backgroundColor = this.oldBackground;}Element.removeClassName(this.element, this.options.hoverClassName);if (this.saving) {return;}this.effect = new Effect.Highlight(this.element, {startcolor:this.options.highlightcolor, endcolor:this.options.highlightendcolor, restorecolor:this.originalBackground});}, leaveEditMode:function () {Element.removeClassName(this.element, this.options.savingClassName);this.removeForm();this.leaveHover();this.element.style.backgroundColor = this.originalBackground;Element.show(this.element);if (this.options.externalControl) {Element.show(this.options.externalControl);}this.editing = false;this.saving = false;this.oldInnerHTML = null;this.onLeaveEditMode();}, onComplete:function (transport) {this.leaveEditMode();this.options.onComplete.bind(this)(transport, this.element);}, onEnterEditMode:function () {}, onLeaveEditMode:function () {}, dispose:function () {if (this.oldInnerHTML) {this.element.innerHTML = this.oldInnerHTML;}this.leaveEditMode();Event.stopObserving(this.element, "click", this.onclickListener);Event.stopObserving(this.element, "mouseover", this.mouseoverListener);Event.stopObserving(this.element, "mouseout", this.mouseoutListener);if (this.options.externalControl) {Event.stopObserving(this.options.externalControl, "click", this.onclickListener);Event.stopObserving(this.options.externalControl, "mouseover", this.mouseoverListener);Event.stopObserving(this.options.externalControl, "mouseout", this.mouseoutListener);}}};Ajax.InPlaceCollectionEditor = Class.create();Object.extend(Ajax.InPlaceCollectionEditor.prototype, Ajax.InPlaceEditor.prototype);Object.extend(Ajax.InPlaceCollectionEditor.prototype, {createEditField:function () {if (!this.cached_selectTag) {var selectTag = document.createElement("select");var collection = this.options.collection || [];var optionTag;collection.each((function (e, i) {optionTag = document.createElement("option");optionTag.value = e instanceof Array ? e[0] : e;if (typeof this.options.value == "undefined" && (e instanceof Array ? this.element.innerHTML == e[1] : e == optionTag.value)) {optionTag.selected = true;}if (this.options.value == optionTag.value) {optionTag.selected = true;}optionTag.appendChild(document.createTextNode(e instanceof Array ? e[1] : e));selectTag.appendChild(optionTag);}).bind(this));this.cached_selectTag = selectTag;}this.editField = this.cached_selectTag;if (this.options.loadTextURL) {this.loadExternalText();}this.form.appendChild(this.editField);this.options.callback = function (form, value) {return "value=" + encodeURIComponent(value);};}});Form.Element.DelayedObserver = Class.create();Form.Element.DelayedObserver.prototype = {initialize:function (element, delay, callback) {this.delay = delay || 0.5;this.element = $(element);this.callback = callback;this.timer = null;this.lastValue = $F(this.element);Event.observe(this.element, "keyup", this.delayedListener.bindAsEventListener(this));}, delayedListener:function (event) {if (this.lastValue == $F(this.element)) {return;}if (this.timer) {clearTimeout(this.timer);}this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);this.lastValue = $F(this.element);}, onTimerEvent:function () {this.timer = null;this.callback(this.element, $F(this.element));}};if (!Control) {var Control = {};}Control.Slider = Class.create();Control.Slider.prototype = {initialize:function (handle, track, options) {var slider = this;if (handle instanceof Array) {this.handles = handle.collect(function (e) {return $(e);});} else {this.handles = [$(handle)];}this.track = $(track);this.options = options || {};this.axis = this.options.axis || "horizontal";this.increment = this.options.increment || 1;this.step = parseInt(this.options.step || "1");this.range = this.options.range || $R(0, 1);this.value = 0;this.values = this.handles.map(function () {return 0;});this.spans = this.options.spans ? this.options.spans.map(function (s) {return $(s);}) : false;this.options.startSpan = $(this.options.startSpan || null);this.options.endSpan = $(this.options.endSpan || null);this.restricted = this.options.restricted || false;this.maximum = this.options.maximum || this.range.end;this.minimum = this.options.minimum || this.range.start;this.alignX = parseInt(this.options.alignX || "0");this.alignY = parseInt(this.options.alignY || "0");this.trackLength = this.maximumOffset() - this.minimumOffset();this.handleLength = this.isVertical() ? this.handles[0].offsetHeight != 0 ? this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/, "") : this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth : this.handles[0].style.width.replace(/px$/, "");this.active = false;this.dragging = false;this.disabled = false;if (this.options.disabled) {this.setDisabled();}this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;if (this.allowedValues) {this.minimum = this.allowedValues.min();this.maximum = this.allowedValues.max();}this.eventMouseDown = this.startDrag.bindAsEventListener(this);this.eventMouseUp = this.endDrag.bindAsEventListener(this);this.eventMouseMove = this.update.bindAsEventListener(this);this.handles.each(function (h, i) {i = slider.handles.length - 1 - i;slider.setValue(parseFloat((slider.options.sliderValue instanceof Array ? slider.options.sliderValue[i] : slider.options.sliderValue) || slider.range.start), i);Element.makePositioned(h);Event.observe(h, "mousedown", slider.eventMouseDown);});Event.observe(this.track, "mousedown", this.eventMouseDown);Event.observe(document, "mouseup", this.eventMouseUp);Event.observe(document, "mousemove", this.eventMouseMove);this.initialized = true;}, dispose:function () {var slider = this;Event.stopObserving(this.track, "mousedown", this.eventMouseDown);Event.stopObserving(document, "mouseup", this.eventMouseUp);Event.stopObserving(document, "mousemove", this.eventMouseMove);this.handles.each(function (h) {Event.stopObserving(h, "mousedown", slider.eventMouseDown);});}, setDisabled:function () {this.disabled = true;}, setEnabled:function () {this.disabled = false;}, getNearestValue:function (value) {if (this.allowedValues) {if (value >= this.allowedValues.max()) {return this.allowedValues.max();}if (value <= this.allowedValues.min()) {return this.allowedValues.min();}var offset = Math.abs(this.allowedValues[0] - value);var newValue = this.allowedValues[0];this.allowedValues.each(function (v) {var currentOffset = Math.abs(v - value);if (currentOffset <= offset) {newValue = v;offset = currentOffset;}});return newValue;}if (value > this.range.end) {return this.range.end;}if (value < this.range.start) {return this.range.start;}return value;}, setValue:function (sliderValue, handleIdx) {if (!this.active) {this.activeHandleIdx = handleIdx || 0;this.activeHandle = this.handles[this.activeHandleIdx];this.updateStyles();}handleIdx = handleIdx || this.activeHandleIdx || 0;if (this.initialized && this.restricted) {if (handleIdx > 0 && sliderValue < this.values[handleIdx - 1]) {sliderValue = this.values[handleIdx - 1];}if (handleIdx < this.handles.length - 1 && sliderValue > this.values[handleIdx + 1]) {sliderValue = this.values[handleIdx + 1];}}sliderValue = this.getNearestValue(sliderValue);this.values[handleIdx] = sliderValue;this.value = this.values[0];this.handles[handleIdx].style[this.isVertical() ? "top" : "left"] = this.translateToPx(sliderValue);this.drawSpans();if (!this.dragging || !this.event) {this.updateFinished();}}, setValueBy:function (delta, handleIdx) {this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta, handleIdx || this.activeHandleIdx || 0);}, translateToPx:function (value) {return Math.round((this.trackLength - this.handleLength) / (this.range.end - this.range.start) * (value - this.range.start)) + "px";}, translateToValue:function (offset) {return offset / (this.trackLength - this.handleLength) * (this.range.end - this.range.start) + this.range.start;}, getRange:function (range) {var v = this.values.sortBy(Prototype.K);range = range || 0;return $R(v[range], v[range + 1]);}, minimumOffset:function () {return this.isVertical() ? this.alignY : this.alignX;}, maximumOffset:function () {return this.isVertical() ? (this.track.offsetHeight != 0 ? this.track.offsetHeight : this.track.style.height.replace(/px$/, "")) - this.alignY : (this.track.offsetWidth != 0 ? this.track.offsetWidth : this.track.style.width.replace(/px$/, "")) - this.alignY;}, isVertical:function () {return this.axis == "vertical";}, drawSpans:function () {var slider = this;if (this.spans) {$R(0, this.spans.length - 1).each(function (r) {slider.setSpan(slider.spans[r], slider.getRange(r));});}if (this.options.startSpan) {this.setSpan(this.options.startSpan, $R(0, this.values.length > 1 ? this.getRange(0).min() : this.value));}if (this.options.endSpan) {this.setSpan(this.options.endSpan, $R(this.values.length > 1 ? this.getRange(this.spans.length - 1).max() : this.value, this.maximum));}}, setSpan:function (span, range) {if (this.isVertical()) {span.style.top = this.translateToPx(range.start);span.style.height = this.translateToPx(range.end - range.start + this.range.start);} else {span.style.left = this.translateToPx(range.start);span.style.width = this.translateToPx(range.end - range.start + this.range.start);}}, updateStyles:function () {this.handles.each(function (h) {Element.removeClassName(h, "selected");});Element.addClassName(this.activeHandle, "selected");}, startDrag:function (event) {if (Event.isLeftClick(event)) {if (!this.disabled) {this.active = true;var handle = Event.element(event);var pointer = [Event.pointerX(event), Event.pointerY(event)];var track = handle;if (track == this.track) {var offsets = Position.cumulativeOffset(this.track);this.event = event;this.setValue(this.translateToValue((this.isVertical() ? pointer[1] - offsets[1] : pointer[0] - offsets[0]) - this.handleLength / 2));var offsets = Position.cumulativeOffset(this.activeHandle);this.offsetX = pointer[0] - offsets[0];this.offsetY = pointer[1] - offsets[1];} else {while (this.handles.indexOf(handle) == -1 && handle.parentNode) {handle = handle.parentNode;}if (this.handles.indexOf(handle) != -1) {this.activeHandle = handle;this.activeHandleIdx = this.handles.indexOf(this.activeHandle);this.updateStyles();var offsets = Position.cumulativeOffset(this.activeHandle);this.offsetX = pointer[0] - offsets[0];this.offsetY = pointer[1] - offsets[1];}}}Event.stop(event);}}, update:function (event) {if (this.active) {if (!this.dragging) {this.dragging = true;}this.draw(event);if (Prototype.Browser.WebKit) {window.scrollBy(0, 0);}Event.stop(event);}}, draw:function (event) {var pointer = [Event.pointerX(event), Event.pointerY(event)];var offsets = Position.cumulativeOffset(this.track);pointer[0] -= this.offsetX + offsets[0];pointer[1] -= this.offsetY + offsets[1];this.event = event;this.setValue(this.translateToValue(this.isVertical() ? pointer[1] : pointer[0]));if (this.initialized && this.options.onSlide) {this.options.onSlide(this.values.length > 1 ? this.values : this.value, this);}}, endDrag:function (event) {if (this.active && this.dragging) {this.finishDrag(event, true);Event.stop(event);}this.active = false;this.dragging = false;}, finishDrag:function (event, success) {this.active = false;this.dragging = false;this.updateFinished();}, updateFinished:function () {if (this.initialized && this.options.onChange) {this.options.onChange(this.values.length > 1 ? this.values : this.value, this);}this.event = null;}};Sound = {tracks:{}, _enabled:true, template:new Template("<embed style=\"height:0\" id=\"sound_#{track}_#{id}\" src=\"#{url}\" loop=\"false\" autostart=\"true\" hidden=\"true\"/>"), enable:function () {Sound._enabled = true;}, disable:function () {Sound._enabled = false;}, play:function (url) {if (!Sound._enabled) {return;}var options = Object.extend({track:"global", url:url, replace:false}, arguments[1] || {});if (options.replace && this.tracks[options.track]) {$R(0, this.tracks[options.track].id).each(function (id) {var sound = $("sound_" + options.track + "_" + id);sound.Stop && sound.Stop();sound.remove();});this.tracks[options.track] = null;}if (!this.tracks[options.track]) {this.tracks[options.track] = {id:0};} else {this.tracks[options.track].id++;}options.id = this.tracks[options.track].id;if (Prototype.Browser.IE) {var sound = document.createElement("bgsound");sound.setAttribute("id", "sound_" + options.track + "_" + options.id);sound.setAttribute("src", options.url);sound.setAttribute("loop", "1");sound.setAttribute("autostart", "true");$$("body")[0].appendChild(sound);} else {new Insertion.Bottom($$("body")[0], Sound.template.evaluate(options));}}};if (Prototype.Browser.Gecko && navigator.userAgent.indexOf("Win") > 0) {if (navigator.plugins && $A(navigator.plugins).detect(function (p) {return p.name.indexOf("QuickTime") != -1;})) {Sound.template = new Template("<object id=\"sound_#{track}_#{id}\" width=\"0\" height=\"0\" type=\"audio/mpeg\" data=\"#{url}\"/>");} else {Sound.play = function () {};}}Scriptaculous.load();
/**
 * @author Bruno Bornsztein <bruno@missingmethod.com>
 * @copyright 2007 Curbly LLC
 * @package Glider
 * @license MIT
 * @url http://www.missingmethod.com/projects/glider/
 * @version 0.0.3
 * @dependencies prototype.js 1.5.1+, effects.js
 */
/*  Thanks to Andrew Dupont for refactoring help and code cleanup - http://andrewdupont.net/  */
Glider = Class.create();
Object.extend(Object.extend(Glider.prototype, Abstract.prototype), {
initialize: function(wrapper, options){
    this.scrolling  = false;
    this.wrapper    = $(wrapper);
    this.scroller   = this.wrapper.down('div.scroller');
    this.sections   = this.wrapper.getElementsBySelector('div.section');
    this.options    = Object.extend({ duration: 1.0, frequency: 3 }, options || {});
    this.sections.each( function(section, index) {
      section._index = index;
    });    
    this.events = {
      click: this.click.bind(this)
    };
    this.addObservers();
if(this.options.initialSection) this.moveTo(this.options.initialSection, this.scroller, { duration:this.options.duration });  // initialSection should be the id of the section you want to show up on load
if(this.options.autoGlide) this.start();
  },
  addObservers: function() {
    var controls = this.wrapper.getElementsBySelector('div.controls a');
    controls.invoke('observe', 'click', this.events.click);
  },	
  click: function(event) {
this.stop();
    var element = Event.findElement(event, 'a');
    if (this.scrolling) this.scrolling.cancel();
    
    this.moveTo(element.href.split("#")[1], this.scroller, { duration:this.options.duration });     
    Event.stop(event);
  },
moveTo: function(element, container, options){
this.current = $(element);
Position.prepare();
    var containerOffset = Position.cumulativeOffset(container),
     elementOffset = Position.cumulativeOffset($(element));
  this.scrolling 	= new Effect.SmoothScroll(container, 
{duration:options.duration, x:(elementOffset[0]-containerOffset[0]), y:(elementOffset[1]-containerOffset[1])});
  return false;
},
  next: function(){
    if (this.current) {
      var currentIndex = this.current._index;
      var nextIndex = (this.sections.length - 1 == currentIndex) ? 0 : currentIndex + 1;      
    } else var nextIndex = 1;
    this.moveTo(this.sections[nextIndex], this.scroller, { 
      duration: this.options.duration
    });
  },
  previous: function(){
    if (this.current) {
      var currentIndex = this.current._index;
      var prevIndex = (currentIndex == 0) ? this.sections.length - 1 : 
       currentIndex - 1;
    } else var prevIndex = this.sections.length - 1;
    
    this.moveTo(this.sections[prevIndex], this.scroller, { 
      duration: this.options.duration
    });
  },
stop: function()
{
clearTimeout(this.timer);
},
start: function()
{
this.periodicallyUpdate();
},
periodicallyUpdate: function()
{ 
if (this.timer != null) {
clearTimeout(this.timer);
this.next();
}
this.timer = setTimeout(this.periodicallyUpdate.bind(this), this.options.frequency*1000);
}
});
Effect.SmoothScroll = Class.create();
Object.extend(Object.extend(Effect.SmoothScroll.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'absolute'
    } , arguments[1] || {}  );
    this.start(options);
  },
  setup: function() {
    if (this.options.continuous && !this.element._ext ) {
      this.element.cleanWhitespace();
      this.element._ext=true;
      this.element.appendChild(this.element.firstChild);
    }
   
    this.originalLeft=this.element.scrollLeft;
    this.originalTop=this.element.scrollTop;
   
    if(this.options.mode == 'absolute') {
      this.options.x -= this.originalLeft;
      this.options.y -= this.originalTop;
    } 
  },
  update: function(position) {   
    this.element.scrollLeft = this.options.x * position + this.originalLeft;
    this.element.scrollTop  = this.options.y * position + this.originalTop;
  }
});
/*  Active Highlight Link  */
activateLink = function(el) {
links = $($(el).up('UL')).descendants('A');
$A($(links)).each(function(e) {
     $(e).removeClassName('activated');
});
$(el).addClassName('activated');
};
var countertextid = 'timer';
var controlid = 'def';
var countdownfrom = 10;
currentsecond = countdownfrom+1;
cdstatus = 1;
function cdcounter(){
if(cdstatus == 0) return;
if (currentsecond!=1){
currentsecond-=1;
if($(countertextid)) {
if(currentsecond == 1) {
$(countertextid).innerHTML = '1 second to next slide';
}else if ($(countertextid) != null) {
$(countertextid).innerHTML = currentsecond + ' seconds to next slide';
}
}
}
else{
currentsecond = countdownfrom+1;
switchSlide();
cdcounter();
return;
}
setTimeout(function() {cdcounter()},1000);
};
function controlCD(newstatus) {
if(newstatus === 1) {
cdstatus = 1;
cdcounter();
$(controlid).innerHTML = 'Stop';
}
else if(newstatus === 0) {
cdstatus = 0;
$(controlid).innerHTML = 'Play';
}
else {
if(cdstatus == 1) {
cdstatus = 0;
$(controlid).innerHTML = 'Play';
}
else {
cdstatus = 1;
cdcounter();
$(controlid).innerHTML = 'Stop';
}
}
};
var slideWidth = 357;
var currentSlide = 1;
function switchSlide() {
if($('slidecontent')) {
slideSections = $A($('slidecontent').getElementsByClassName('slider_section'));
noOfSlides = slideSections.length;
maxwidth = (noOfSlides*slideWidth)-slideWidth;
if($('slidecontent').style.left == -maxwidth + 'px') {
currentSlide = 1;
activateLink($('aslide1'));
//new Effect.Move('slidecontent', {x: maxwidth});
}
else {
currentSlide = currentSlide+1;
activateLink($('aslide' + currentSlide));
//new Effect.Move('slidecontent', {x: -slideWidth});
}
}
};
function pickSlide(linkEl) {
if($('slidecontent')) {
slideSections = $A($('slidecontent').getElementsByClassName('slider_section'));
noOfSlides = slideSections.length;
maxwidth = (noOfSlides*slideWidth)-slideWidth;
slideNo = parseInt($(linkEl).innerHTML);
currentslideposition = $('slidecontent').getStyle('left');
slidepos = parseInt(currentslideposition.sub('px', ''));
movex = ((slideNo*slideWidth)-slideWidth)+slidepos;
currentSlide = slideNo;
new Effect.Move('slidecontent', {x: -movex});
}
};
activateLink = function(el, controlcdstatus) {
if(controlcdstatus === 0) {
controlCD(0);
}
links = $($(el).up('UL')).descendants('A');
$A($(links)).each(function(e) {
     $(e).removeClassName('activated');
});
$(el).addClassName('activated');
pickSlide($(el));
};
document.observe('dom:loaded', function(event){
 cdcounter();
});
/*
 * Fabtabulous! Simple tabs using Prototype
 * http://tetlaw.id.au/view/blog/fabtabulous-simple-tabs-using-prototype/
 * Andrew Tetlaw
 * version 1.1 2006-05-06
 * http://creativecommons.org/licenses/by-sa/2.5/
 */
/* Z: Disable due to JS Page Error on IE
var Fabtabs = Class.create();
Fabtabs.prototype = {
initialize : function(element) {
alert($(element));
this.element = $(element);
var options = Object.extend({}, arguments[1] || {});
this.menu = $A(this.element.getElementsByTagName('a'));
this.show(this.getInitialTab());
this.menu.each(this.setupTab.bind(this));
},
setupTab : function(elm) {
Event.observe(elm,'click',this.activate.bindAsEventListener(this),false)
},
activate :  function(ev) {
var elm = Event.findElement(ev, "a");
Event.stop(ev);
this.show(elm);
this.menu.without(elm).each(this.hide.bind(this));
},
hide : function(elm) {
$(elm).removeClassName('active-tab');
$(this.tabID(elm)).removeClassName('active-tab-body');
},
show : function(elm) {
$(elm).addClassName('active-tab');
$(this.tabID(elm)).addClassName('active-tab-body');
},
tabID : function(elm) {
return elm.href.match(/#(\w.+)/)[1];
},
getInitialTab : function() {
if(document.location.href.match(/#(\w.+)/)) {
var loc = RegExp.$1;
var elm = this.menu.find(function(value) { return value.href.match(/#(\w.+)/)[1] == loc; });
return elm || this.menu.first();
} else {
return this.menu.first();
}
}
};
Event.observe(window,'load',function(){ new Fabtabs('tabfeed'); },false);
*/