var timer;
    function PingWhosOn() {
     writeWhosOn("213.121.243.201:8013", "www.instantintelligence.com", "");
     //timer = window.setTimeout("PingWhosOn()", 30000);
    }
    function writeWhosOn(sWOGateway, sWODomain, sWOPage) {
      	var sWOSession;
      	var sWOUrl;
      	var sWOProtocol=window.location.protocol;
      	var iWO = new Image(1, 1);
      	
      	// create a unique session cookie for the visitor if not already created
      	var dt=new Date();
      	var sWOCookie=document.cookie.toString();
      	if(sWOCookie.indexOf("whoson")==-1){
      		sWOSession=parseInt(Math.random()*1000)+"-"+dt.getTime();
      		document.cookie="whoson="+sWOSession+";expires=Fri, 31-Dec-2010 00:00:00 GMT;";
      	}
      	sWOCookie=document.cookie.toString();
      	if(sWOCookie.indexOf('whoson')==-1){
      		sWOSession="";
      	} else {
      		var s=sWOCookie.indexOf("whoson=")+7;
      		var e=sWOCookie.indexOf(";",s);
      		if(e==-1)e=sWOCookie.length;
      		sWOSession=sWOCookie.substring(s,e);
      	}
      	if(sWOPage=="")sWOPage=escape(window.location);
      	if(sWOProtocol=="file:")sWOProtocol="http:";
      	sWOUrl=sWOProtocol+"//"+sWOGateway+"/stat.gif?u="+sWOSession+"&d="+sWODomain;
      	sWOUrl+="&p='"+sWOPage+"'&r='"+escape(document.referrer)+"'";
      	iWO.src=sWOUrl;
      return;
     }
    PingWhosOn();