Normal1 = new Image();
Highlight1 = new Image();

Normal2 = new Image();
Highlight2 = new Image();

Normal3 = new Image();
Highlight3 = new Image();

Normal1.src = "fileadmin/templates/images/nav_landwirte.gif";
Highlight1.src = "fileadmin/templates/images/nav_landwirte1.gif";

Normal2.src = "fileadmin/templates/images/nav_kommunen.gif";
Highlight2.src = "fileadmin/templates/images/nav_kommunen1.gif";

Normal3.src = "fileadmin/templates/images/nav_betreiber.gif";
Highlight3.src = "fileadmin/templates/images/nav_betreiber1.gif";

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