config='toolbar=no,location=no,directories=no,status=no,menubar=no,width=500,height=150,scrollbars=no,resizable=no';
function display()
{
var display = window.open ("","display",config);
var caly = location.href;
var poczatek2 = location.href.lastIndexOf("/") + 1;
var koniec3 = caly.length - 4;
var nazwa = caly.substring(poczatek2, koniec3);
var koniec2 = location.href.lastIndexOf("pl/") + 3;
var sciezka = caly.substring(0, koniec2);
display.document.write('Kod do banera
<A HREF="' + document.location + '"><IMG SRC="' + sciezka + 'grafika/reklama/' + nazwa + '.jpg" WIDTH="200" HEIGHT="50" BORDER="0" ALT="' + document.title + '"></A>');
}