function createRequestObject() { 
  var ro; 
  var browser = navigator.appName;  
  if(browser == "Microsoft Internet Explorer") { ro = new ActiveXObject("Microsoft.XMLHTTP");} 
  else { ro = new XMLHttpRequest(); } 
  return ro; 
} 

function isonline(loops) { 

    http.open('get', 'adm/counter.php?online=1&time='+loops+'&url='+url+'&ref='+ref);

    http.send(null); } 
    
  if (window.XMLHttpRequest) { http = new XMLHttpRequest(); } 
  else if (window.ActiveXObject) { http = new ActiveXObject("Microsoft.XMLHTTP"); } 
  
  
function time() {
loops++;
if (loops < 60) {
isonline(loops);
}
}

var loops = 0;
setInterval('time()', 5000);
time();