function FensterOeffnen (Adresse) {
  Fenster1 = window.open(Adresse, "Zweitfenster", "width=300,height=355,left=100,top=200,scrollbars=yes");
  Fenster1.focus();
}


function open_contact () {
  Fenster1 = window.open("card.html", "Zweitfenster", "width=816px,height=575px,left=100,top=200");
  Fenster1.focus();
}