function gup(name) {
    name=name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
    var regexS="[\\?&]"+name+"=([^&#]*)";
    var regex=new RegExp(regexS);
    var results=regex.exec(window.location.href);
    if(results==null)
        return "";
    else
        return results[1];
}