function GetQueryString(name){
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if(r!=null)return unescape(r[2]); return null;
}
var name = GetQueryString("name");
console.log(name)
原文：http://www.cnblogs.com/smjia/p/5629397.html