url = escape(document.URL);
ref = escape(document.referrer);

if ( top.document.location==document.referrer || (document.referrer == "" && top.document.location != "") ) {
	ref = escape(top.document.referrer);
}

if ( ref.indexOf(document.domain.toString()) >= 0 ) {
	ref = "wejscie_z_domeny";
}

var i=new Image(1,1);
i.src='http://tracker.performance-media.pl/track.php?domena=73&url='+url+'&ref='+ref;
i.onload=function() { return 1; }