unternehmen_hover = new Image();
unternehmen_hover.src = "images/design/start/menu/hover/unternehmen_hover.jpg";
rechnungswesen_hover = new Image();
rechnungswesen_hover.src = "images/design/start/menu/hover/hoover_rechnungswesen.jpg";
byd_hover = new Image();
byd_hover.src = "images/design/start/menu/hover/hoover_byd.jpg";
aktuelles_hover = new Image();
aktuelles_hover.src = "images/design/start/menu/hover/hoover_aktuelles.jpg";
service_hover = new Image();
service_hover.src = "images/design/start/menu/hover/hoover_services.jpg";
ref_hover = new Image();
ref_hover.src = "images/design/start/menu/hover/hoover_ref.jpg";
unternehmen_start = new Image ();
unternehmen_start.src ="images/design/start/menu/portolan_unternehmen.jpg";
rechnungswesen_start = new Image ();
rechnungswesen_start.src ="images/design/start/menu/portolan_rechnungswesen.jpg";
byd_start = new Image ();
byd_start.src ="images/design/start/menu/portolan_referenzen.jpg";
aktuelles_start = new Image ();
aktuelles_start.src ="images/design/start/menu/portolan_aktuelles.jpg";
service_start = new Image ();
service_start.src ="images/design/start/menu/portolan_service.jpg";
ref_start = new Image ();
ref_start.src ="images/design/start/menu/portolan_ref.jpg";
function Wechseln(Bildname,Tauschbildname)
{
document.images[Bildname].src = eval(Tauschbildname + ".src")
}