function fenster1()
         {
        var win;
        win=window.open("leist1.html","text","height=550,width=450,left=400,top=50,scrollbars=yes");
        }


        function fenster2()
         {
        var win;
        win=window.open("leist2.html","text","height=350,width=500,left=400,top=50,resizable=yes,scrollbars=yes");
        }
         function fenster3()
         {
        var win;
        win=window.open("kon.html","text","height=450,width=450,left=400,top=50,resizable=yes,scrollbars=yes");
        }
         function fenster4()
         {
        var win;
        win=window.open("quali.html","text","height=350,width=350,left=400,top=50,resizable=yes,scrollbars=yes");
        }
           function fenster5()
         {
        var win;
        win=window.open("Impres.html","text","height=350,width=400,left=400,top=50,resizable=yes,scrollbars=yes");
        }
         function fenster6()
         {
        var win;
        win=window.open("gal.html","text","height=590,width=750,left=210,top=40,resizable=yes,scrollbars=yes");
        }