js获取url参数值

        function getQueryStringRegExp(name) {
          //var reg = new RegExp("(^|\\?|&)" + name + "=([^&]*)(\\s|&|$)", "i");
          var reg = new RegExp("(^|[?|&])" + name + "=([^&]*)(\\s|&|$)", "i");
          // (|^[?|&])id=([^&]*)(\\s|&|$)
            if (reg.test(location.href)) return RegExp.$2; //decodeURI(RegExp.$2.replace(/\+/g, " "));
            return "";
        }

获取参数值的时候 getQueryStringRegExp('参数')；

http://www.google.com/id=11