function  FensterOeffnen (Adresse, Breite, Hoehe, Links, Oben, ScrBars) {
  Fenster1 = window.open(Adresse,  "Zweitfenster",
  "width="+Breite+", height="+Hoehe+", left="+Links+", top="+Oben+", scrollbars="+ScrBars+"");
  Fenster1.focus();
}