//js获取cookie 
var acookie=document.cookie.split("; "); 
function getck(sname,sname1)
{//获取单个cookies 
	for(var i=0;i<acookie.length;i++){ 
		var arri=acookie[i].split("="); 
		if (sname==arri[0])
		{
			zdvalue = acookie[i].substring(acookie[i].indexOf("=")+1,acookie[i].length);
			var arrii=zdvalue.split("&"); 
			for (var j=0;j<arrii.length ;j++ )
			{
				var arrj=arrii[j].split("="); 
				if(sname1==arrj[0]){ 
					if(arrj.length>1) 
						return unescape(arrj[1]); 
					else 
						return ""; 
				}
			}
		}
	} 
	return ""; 
} 
//alert(document.cookie+"----"+getck("user","userName1"));