function GetQueryString(name){

     var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");

     var r = window.location.search.substr(1).match(reg);

     if(r!=null)return  unescape(r[2]); return null;

};

function getQueryString(name) {

    var result = window.location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));

    if (result == null || result.length < 1) {

        return "";

    }

    return result[1];

};

function getParameter(str,name){

    var result = str.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));

    if (result == null || result.length < 1) {

        return "";

    }

    return result[1];

};