function wnd(src, nazwa, w, h)
{
	if (w>640)
		w=640;

	if (h>480)
		h=480;

  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);
  //}
  noweOkienko.focus();
}