js获取URL参数

function GetRequest() {
                var url = 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]] = decodeURI(strs[i].split("=")[1]);
                    }
                }
                return theRequest;
            }