Button_mehrzu = new Image(); 
        Button_mehrzu.src = "images/kontextbutton-mehr-zu.gif";
        Button_mehrzu_an = new Image(); 
        Button_mehrzu_an.src = "images/kontextbutton-mehr-zu-an.gif";

        Button_partner = new Image(); 
        Button_partner.src = ".images/kontextbutton-partner.gif";
        Button_partner_an = new Image(); 
        Button_partner_an.src = "images/kontextbutton-partner-an.gif";
		
        Button_kontakt = new Image(); 
        Button_kontakt.src = ".images/kontextbutton-kontakt.gif";
        Button_kontakt_an = new Image(); 
        Button_kontakt_an.src = "images/kontextbutton-kontakt-an.gif";

		
  
        function ShowKontextGedrueckt(buttonort,welcherbutton)
        {
        window.document.images[buttonort].src = welcherbutton.src;
        }