var s_day = new Date(); 

if (typeof(parent.document) != "unknown") 
	var url = parent.document.URL; 
else 
	var url = "none"; 

if(document.referrer == url) 
	var log_ref=parent.document.referrer; 
else 
	var log_ref=document.referrer; 

var user_zone=s_day.getTimezoneOffset()/60; 
var user_ss=screen.width+"*"+screen.height; 

var str="<img src='_log.php?"; 
str+="&uz="+encodeURI(user_zone)+"&uss="+encodeURI(user_ss)+"&lr="+encodeURI(log_ref); 
str+="' border='0' height='0' width='0'>"; 

//document.getElementById("logdiv").innerHTML = str;
document.write(str);