function request(params) {

        var url = location.href;

        var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");

        var paraObj = { };

        for (i = 0; j = paraString[i]; i++) {

            paraObj[j.substring(0, j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=") + 1, j.length);

        }

        var returnValue = paraObj[params.toLowerCase()];

        if (typeof (returnValue) == "undefined") {

            return "";

        } else {

            return returnValue;

        }

    }