function FensterOeffnen (Adresse) {
  MeinFenster = window.open(Adresse, "Zweitfenster", "width=650px, left=150,top=80, scrollbars=yes");
  MeinFenster.focus();
  }

function FensterKlein (Adresse) {
  MeinFenster = window.open(Adresse, "Zweitfenster", "width=350px, height=650, left=150,top=80, scrollbars=yes");
  MeinFenster.focus();
  }