/*
 * Ext JS Library 2.0.2
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * licensing@extjs.com
 *
 * http://extjs.com/license
 */

Ext.util.JSON=new (function(){
	var useHasOwn={}.hasOwnProperty?true:false;
	var pad=function(n){
		return n<10?"0"+n:n
	};
	var m={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r","\"":"\\\"","\\":"\\\\"};
	var encodeString=function(s)
	{
		if(/["\\\x00-\x1f]/.test(s))
		{
			return"\""+s.replace(/([\x00-\x1f\\"])/g,function(a,b){var c=m[b];
			if(c){return c}c=b.charCodeAt();
			return"\\u00"+Math.floor(c/16).toString(16)+(c%16).toString(16)})+"\""
		}
		return"\""+s+"\""
	};
	var encodeArray=function(o)
	{
		var a=["["],b,i,l=o.length,v;
		for(i=0;i<l;i+=1)
		{
			v=o[i];
			switch(typeof v)
			{
				case"undefined":
				case"function":
				case"unknown":
				break;
				default:if(b){a.push(",")}a.push(v===null?"null":Ext.util.JSON.encode(v));
				b=true
			}
		}
		a.push("]");
		return a.join("")
	};
	var encodeDate=function(o)
	{
		return"\""+o.getFullYear()+"-"+pad(o.getMonth()+1)+"-"+pad(o.getDate())+"T"+pad(o.getHours())+":"+pad(o.getMinutes())+":"+pad(o.getSeconds())+"\""
	};
	this.encode=function(o)
	{
		if(typeof o=="undefined"||o===null)
		{
			return"null"
		}
		else
		{
			if(Ext.isArray(o))
			{
				return encodeArray(o)
			}
			else
			{
				if(Ext.isDate(o))
				{
					return encodeDate(o)
				}
				else
				{
					if(typeof o=="string")
					{
						return encodeString(o)
					}
					else
					{
						if(typeof o=="number")
						{
							return isFinite(o)?String(o):"null"
						}
						else
						{
							if(typeof o=="boolean")
							{
								return String(o)
							}
							else
							{
								var a=["{"],b,i,v;
								for(i in o)
								{
									if(!useHasOwn||o.hasOwnProperty(i))
									{
										v=o[i];
										switch(typeof v)
										{
											case"undefined":
											case"function":
											case"unknown":
												break;
											default:
											if(b)
											{
												a.push(",")
											}
											a.push(this.encode(i),":",v===null?"null":this.encode(v));
											b=true
										}
									}
								}
								a.push("}");
								return a.join("")
							}
						}
					}
				}
			}
		}
	};
	this.decode=function(json)
	{
		return eval("("+json+")")
	}
})();
Ext.encode=Ext.util.JSON.encode;Ext.decode=Ext.util.JSON.decode;