function preload() {
  Bild1 = new Image();
  Bild1.src = "fileadmin/templates/img/nav2.png";
  Bild2 = new Image();
  Bild2.src = "fileadmin/templates/img/nav2_hover.png";
  Bild3 = new Image();
  Bild3.src = "fileadmin/templates/img/nav3.png";
  Bild4 = new Image();
  Bild4.src = "fileadmin/templates/img/nav3_hover.png";
  Bild5 = new Image();
  Bild5.src = "fileadmin/templates/img/nav4.png";
  Bild6 = new Image();
  Bild6.src = "fileadmin/templates/img/nav4_hover.png";
  Bild7 = new Image();
  Bild7.src = "fileadmin/templates/img/nav5.png";
  Bild8 = new Image();
  Bild8.src = "fileadmin/templates/img/nav5_hover.png";
  Bild9 = new Image();
  Bild9.src = "fileadmin/templates/img/nav_hover.gif";
  Bild10 = new Image();
  Bild10.src = "fileadmin/templates/img/nav.gif";
  Bild11 = new Image();
  Bild11.src = "fileadmin/templates/img/nav.gif";
  Bild12 = new Image();
  Bild12.src = "fileadmin/templates/img/bg_start.jpg";
  Bild13 = new Image();
  Bild13.src = "fileadmin/templates/img/bg_hofer_anzeiger.jpg";
}