noweOkienko = null;
function wnd(src, nazwa, w, h)
{
  if(window.screen){
    aw=screen.availWidth;
    ah=screen.availHeight;
  }else{
    aw=640;
    ah=450;
  }
  //if(noweOkienko==null || noweOkienko.closed){
    ustawienia=
     "left=" + (aw-w)/2 + ", "
    +"top=" + (ah-h)/2 + ", "
    +"screenX=" + (aw-w)/2 + ", "
    +"screenY=" + (ah-h)/2 + ", "
    +"width=" + w + ", "
    +"height=" + h + ", "
    +"innerWidth=" + w + ", "
    +"innerHeight=" + h + ", "
    +"toolbar=no, "
    +"location=no, "
    +"directories=no, "
    +"status=no, "
    +"menubar=no, "
    +"scrollbars=yes, "
    +"resizable=yes, "
	+"status=no"
    noweOkienko = window.open(src,nazwa,ustawienia);
  //}
  return noweOkienko;
}