function landscape (Adresse) {
          MeinFenster = window.open(Adresse, "Teneriffa",
          "width=820,height=620,left=10,top=10,menubar=no,resizable=no,toolbar=no,status=no,location=no");
          MeinFenster.focus();
        }

function appartements (Adresse) {
          MeinFenster = window.open(Adresse, "Appartements",
          "width=720,height=520,left=10,top=10,menubar=no,resizable=no,toolbar=no,status=no,location=no");
          MeinFenster.focus();
        }