js获取url地址栏问号后携带的参数

function GetRequest() {        var url = decodeURI(location.search); //获取url中"?"符后的字串        var theRequest = new Object();        if (url.indexOf("?") != -1) {            var str = url.substr(1);            strs = str.split("&");            for ( var i = 0; i < strs.length; i++) {                theRequest[strs[i].split("=")[0]] = unescape(strs[i].split("=")[1]);            }        }        return theRequest;    }    var Request=undefined;    Request=GetRequest();    var id=Request["id"];