/*
 *  Code from Prototype JavaScript framework, version 1.6.0.3
 *  (c) 2005-2008 Sam Stephenson
 *
 *  http://www.prototypejs.org/
 *
 */

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 $H(object).toQueryString();},toHTML:function(object){return object&&object.toHTML?object.toHTML():String.interpret(object);},keys:function(object){var keys=[];for(var property in object)keys.push(property);return keys;},values:function(object){var values=[];for(var property in object)values.push(object[property]);return values;},clone:function(object){return Object.extend({},object);},isElement:function(object){return !!(object&&object.nodeType==1);},isArray:function(object){return object!=null&&typeof object=="object"&&'splice' in object&&'join' in object;},isHash:function(object){return object instanceof Hash;},isFunction:function(object){return typeof object=="function";},isString:function(object){return typeof object=="string";},isNumber:function(object){return typeof object=="number";},isUndefined:function(object){return typeof object=="undefined";}});var Class={create:function(){var parent=null,properties=$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=(function(m){return function(){return ancestor[m].apply(this,arguments)};})(property).wrap(method);value.valueOf=method.valueOf.bind(method);value.toString=method.toString.bind(method);};this.prototype[property]=value;};return this;}};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;};