JS 操作Url参数

<script type="text/javascript">
    //运用
    window.onload = function () {
        var Request = new Object();
        Request = GetRequest();
        var urlPara = Request[‘isChecked‘];
        if (urlPara != null && urlPara != "") {
            if (urlPara.indexOf("rad") > -1) {
                SelectRadio(urlPara);
            }
        }
    }
    // 判断选中
    function SelectRadio(id) {
        //debugger;
        document.getElementById(id).checked = true;

    }
    //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]] = unescape(strs[i].split("=")[1]);
            }
        }
        return theRequest;
    }</script>