function updateRNCount(id) {
 var sc=document.createElement('script');
 sc.type='text/javascript';
 sc.id="_gasojs";
 referer = "";
 if (document.referrer != "" && document.referrer.match(/:\/\/(.[^/]+)/)) 
 referer = document.referrer.match(/:\/\/(.[^/]+)/)[1];
 sc.src='http://www.romagnanotte.com/web/overlay_js.php?user_id='+user_id+'&ref='+referer+'&rnd='+Math.random();
 document.getElementsByTagName('head')[0].appendChild(sc);
// alert("ID: "+user_id);
}