JS获取URL参数

1，总结一下Js中常用的俩个最简单的获取URL参数的方法。
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <script src="/script/jquery-1.6.2.min.js"></script>
    <script type="text/javascript">
        function getQueryString(name) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
            var r = window.location.search.substr(1).match(reg);
            if (r != null) return unescape(r[2]); return null;
        }
        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;
        }
        function getUrl(urlName)
        {
            var Request = new Object();
            Request = GetRequest();
            return Request[urlName];
        }
    </script>
</head>
<body>
    <input type="button" value="方法一获取URL参数" id="method1" onclick="alert(getQueryString('id'));" />
    <input type="button" value="方法二获取URL参数" id="method2" onclick="alert(getUrl('id'))" />
</body>
</html>