获取网页传递的参数

  <script type="text/javascript">
        /*--获取网页传递的参数--*/
        function request(paras) {
            var url = location.href;
            var paramStr = url.substring(url.indexOf('?') + 1, url.length).split('&');
            var j;
            var paramObj = {};
            for (var i = 0; j = paramStr[i]; i++) {
                paramObj[j.substring(0, j.indexOf('=')).toLowerCase()] = j.substring(j.indexOf('=') + 1, j.length);
            }
            
            var returnValue=paramObj[paras.toLowerCase()];

            if (typeof (returnValue) == "undefined") {
                return "";
            } else {
                return returnValue;
            }
        }

        window.onload = function() {
            alert(request("name"));
        }

    </script>