Normal1 = new Image(); 
  Normal1.src = "/fileadmin/templates/img/head_button1_0.gif";
  Highlight1 = new Image(); 
  Highlight1.src = "/fileadmin/templates/img/head_button1_1.gif";

  Normal2 = new Image(); 
  Normal2.src = "/fileadmin/templates/img/head_button2_0.gif";
  Highlight2 = new Image(); 
  Highlight2.src = "/fileadmin/templates/img/head_button2_1.gif";
  
  Normal3 = new Image(); 
  Normal3.src = "/fileadmin/templates/img/head_button3_0.gif";
  Highlight3 = new Image(); 
  Highlight3.src = "/fileadmin/templates/img/head_button3_1.gif";
  
  Normal4 = new Image(); 
  Normal4.src = "/fileadmin/templates/img/head_button4_0.gif";
  Highlight4 = new Image(); 
  Highlight4.src = "/fileadmin/templates/img/head_button4_1.gif";

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