//##########################################
function loadurl(dest) { 
//  alert("w");
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }

xmlhttp.onreadystatechange = triggered;
//xmlhttp.open("GET", dest);
//alert(dest + '?time=' + new Date().getTime());
xmlhttp.open('GET', dest + '?time=' + new Date().getTime());
xmlhttp.send(null);

}
function triggered() {
if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
document.getElementById("polling").innerHTML = xmlhttp.responseText;}
}

var t = self.setInterval("loadurl('includes/readers-online.php')", 30000);