var url_ref=document.referrer;
var tourl = window.location;
var lang=navigator.systemLanguage||navigator.language;
var data = '&url_ref='+escape(url_ref)+'&tourl='+escape(tourl)+'&lang='+lang;
var ajaxurl = "/stat.php?op=Stat"+data;
$.ajax({
		type:'get',
        url:ajaxurl
		});
<!--document.write('<img src="/stat.php?op=Stat'+data+'" border=0 width=0 height=0 />');-->