function enlarge(xc, yc) {

  var loc = "http://www.banjalukaguide.com/dyn/enlarged.php?" + xc + "," + yc;

  window.open(loc, "", "width=500,height=500,left=100,top=100,toolbar=no,scrollbars=no,status=no,resize=no,menubar=no,directories=no");
}