/*
    一个简单的cookie操作函数，自家用
*/
function SetCookie()
{
    var name = arguments[0];
	var value = arguments[1];
	//初始化默认存储时间
	var time = 3600;
	if(arguments[2]!=undefined)
	{
	    time = arguments[2]
	}
	if(arguments[0]==undefined||arguments[0]==undefined)
	{
	    alert("SetCookie Has ERROR Agruments");
	}
	document.cookie = name+"="+escape(value)+" ; expires="+GetTime(time);
}
function GetCookie( name )
{
    var arr = document.cookie.match(new RegExp("(^|)"+name+"=([^;]*)(;|$)"));
	if(arr!=null)
	{
	    return unescape(arr[2]);
	}
	else
	{
	    return null;
	}
}
function DelCookie( name )
{
    var value = GetCookie( name );
	if(value!=null)
	{
	    document.cookie = name+"="+escape(value)+" ; expires="+GetTime( 0 );
	}
}
function GetTime( time )
{
    var exp = new Date();
	exp.setTime( exp.getTime()+time*1000 );
	return exp.toGMTString();
}