norm1 = new Image();
norm1.src = "images/button01.gif";
/* home button */

link1 = new Image();
link1.src = "images/button01_lite.gif";
/* home button 2 */

norm2 = new Image();
norm2.src = "images/button02.gif";
/* Produkte button */

link2 = new Image();
link2.src = "images/button02_lite.gif";
/* Produkte button 2 */


norm3 = new Image();
norm3.src = "images/button03.gif";
/* Über uns button */

link3 = new Image();
link3.src = "images/button03_lite.gif";
/* Über uns button 2 */

norm4 = new Image();
norm4.src = "images/button04.gif";
/* Kontakt button */

link4 = new Image();
link4.src = "images/button04_lite.gif";
/* Kontakt button 2 */





function Bildwechsel(bildnr,bildobjekt)
{
window.document.images[bildnr].src = bildobjekt.src;
}


function vorladen() {}

// Liste der Bilder
var preload_images =
[
  "images/button01.gif",
  "images/button01_lite.gif",
  "images/button02.gif",
  "images/button02_lite.gif",
  "images/button03.gif",
  "images/button03_lite.gif",
  "images/button04.gif",
  "images/button04_lite.gif",
]
// intern benoetigte Parameter
var load_next = 200 // Zeit in ms zwischen zwei Ladevorgaengen
var pos_array = 0
// Ladefunktion
function preload()
{
  // Naechstes Bild laden
  var new_image = new Image()
  new_image.src = preload_images[pos_array]
  // Noch Bilder zu laden?
  pos_array++
  if(pos_array < preload_images.length)
    setTimeout('preload()', load_next)
}
// Start der Vorladefunktion
function vorladen()
{
  // Bilder vorhanden?
  if(preload_images.length == 0)
    return
  // Pruefroutine starten
  setTimeout('preload()', load_next)
}