function preload() {
  Bild1 = new Image();
  Bild1.src = "fileadmin/templates/img/beratung.gif";
  Bild2 = new Image();
  Bild2.src = "fileadmin/templates/img/beratung_act.gif";
  Bild3 = new Image();
  Bild3.src = "fileadmin/templates/img/internetauftritte.gif";
  Bild4 = new Image();
  Bild4.src = "fileadmin/templates/img/internetauftritte_act.gif";
  Bild5 = new Image();
  Bild5.src = "fileadmin/templates/img/ecommerce.gif";
  Bild6 = new Image();
  Bild6.src = "fileadmin/templates/img/ecommerce_act.gif";
  Bild7 = new Image();
  Bild7.src = "fileadmin/templates/img/onlinevermarktung.gif";
  Bild8 = new Image();
  Bild8.src = "fileadmin/templates/img/onlinevermarktung_act.gif";
  Bild9 = new Image();
  Bild9.src = "fileadmin/templates/img/navigation_act.gif";
  Bild10 = new Image();
  Bild10.src = "fileadmin/templates/img/navigation.gif";
}