aus1 = new Image();
aus1.src = "Start_b.jpg";
an1 = new Image();
an1.src = "Start_g.jpg";
aus2 = new Image();
aus2.src = "Literatur_b.jpg";
an2 = new Image();
an2.src = "Literatur_g.jpg";
aus3 = new Image();
aus3.src = "Bildergalerie_b.jpg";
an3 = new Image();
an3.src = "Bildergalerie_g.jpg";
aus4 = new Image();
aus4.src = "Impressum_b.jpg";
an4 = new Image();
an4.src = "Impressum_g.jpg";
aus5 = new Image();
aus5.src = "Schmetterlingszucht_b.jpg";
an5 = new Image();
an5.src = "Schmetterlingszucht_g.jpg";
aus6 = new Image();
aus6.src = "Links_b.jpg";
an6 = new Image();
an6.src = "Links_g.jpg";