javascript read query string values

gistfile1.js

 <script src="jquery-1.8.2.min.js"></script>
    <script type="text/javascript">
        var id = getQuery('id');
        var name = getQuery('Name');

        function getQuery(key) {
            var temp = location.search.match(new RegExp(key + "=(.*?)($|\&)", "i"));
            if (temp) {
                return temp[1];
            }
        }
        alert(id);
        alert(name);
    </script>