if(document.images != null)
  {
    home1=new Image();
    home1.src="art/home1.gif";
  }

  function home_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Home";
    document.home.src="art/home"+num+".gif";
  }
        if(document.images != null)
  {
    service1=new Image();
    service1.src="art/service1.gif";
  }

  function service_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Unser Service";
    document.service.src="art/service"+num+".gif";
  }
       if(document.images != null)
  {
   	uberuns1=new Image();
    uberuns1.src="art/uberuns1.gif";
  }

  function uberuns_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Über uns";
    document.uberuns.src="art/uberuns"+num+".gif";
  }
         if(document.images != null)
  {
    kontakt1=new Image();
    kontakt1.src="art/kontakt1.gif";
  }

  function kontakt_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Kontakt";
    document.kontakt.src="art/kontakt"+num+".gif";
  }
         if(document.images != null)
  {
    impress1=new Image();
    impress1.src="art/impress1.gif";
  }

  function impress_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Impressum";
    document.impress.src="art/impress"+num+".gif";
  }  
         if(document.images != null)
  {
    knopf1=new Image();
    knopf1.src="art/knopf1.gif";
  }

  function knopf_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Preisliste";
    document.knopf.src="art/knopf"+num+".gif";
  }  
          if(document.images != null)
  {
    fax1=new Image();
    fax1.src="art/fax1.gif";
  }

  function fax_button(num)
  {
    if(document.images == null)return;
    if(num == 0)window.status="";
    if(num == 1)window.status="Daten übermitteln";
    document.fax.src="art/fax"+num+".gif";
  }