function countClk(id){
    var url = '/gateway.php?id=' + id;
    var req = new XMLHttpRequest();
    req.open('GET', url, true);
    req.onreadystatechange = function (aEvt) {
        if (req.readyState == 4) {
            if(req.status == 200) {
                dump(req.responseText);
            }
            else {
                dump("Error loading page\n");
            }
        }
    };
    req.send(null);
}