function QueryString(name) {
    var strUrl = window.location.search.toUpperCase(); //將字串轉成大寫統一
    if (strUrl.indexOf("?") != -1) {
        var AllVars = strUrl.substring(1); //切掉問號 
        var Vars = AllVars.split("&");
        for (i = 0; i < Vars.length; i++) {
            var Var = Vars[i].split("=");
            if (Var[0] == name)
                return Var[1];
        }
        return "";
    }
    else
        return "";
}