function FensterOeffnen (Adresse) {
  Fenster1 = window.open(Adresse, "Zweitfenster", "width=298,height=184");
  Fenster1.focus();
}

function FensterOeffnen2 (Adresse) {
  Fenster1 = window.open(Adresse, "Zweitfenster", "width=620,height=700");
  Fenster1.focus();
}