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;
}