d = document;
w = window;
ns3 = (d.images) && ((w.screen)?false:true);
ie = ((d.all) && (w.offscreenBuffering)) ? true : false; // IE >= 4.x
ns4 = ((d.captureEvents) && (!d.getElementById)) ? true : false;
ns6 = ((d.getElementById) && (!d.all) && (d.documentElement)) ? true : false;

    navli = new Image(); 
    navli.src = "../layout/nav_links.gif";
    strongli = new Image(); 
    strongli.src = "../layout/nav_links_l.gif";

    navre = new Image(); 
    navre.src = "../layout/nav_rechts.gif";
    strongre = new Image(); 
    strongre.src = "../layout/nav_rechts_l.gif";

    navho = new Image(); 
    navho.src = "../layout/nav_home.gif";
    strongho = new Image(); 
    strongho.src = "../layout/nav_home_l.gif";

function naviii(Bildnr,Bildobjekt) {
if(ns3 || ns4) {}
else {
     window.document.images[Bildnr].src = Bildobjekt.src;  }
}