bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) ||
    (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3";
else br = "n2";

if (br== "n3"){
img1on = new Image();
img1on.src = "./gifs/n1_aboon.gif";
img2on = new Image();
img2on.src = "./gifs/n1_allon.gif";
img3on = new Image();
img3on.src = "./gifs/n1_newon.gif";
img4on = new Image();
img4on.src = "./gifs/n1_ordon.gif";
img5on = new Image();
img5on.src = "./gifs/n1_supon.gif";
img6on = new Image();
img6on.src = "./gifs/n2_ne_on.gif";
img7on = new Image();
img7on.src = "./gifs/n2_pr_on.gif";
img8on = new Image();
img8on.src = "./gifs/n2_re_on.gif";
img9on = new Image();
img9on.src = "./gifs/n2_ta_on.gif";
img10on = new Image();
img10on.src = "./gifs/n3_boaon.gif";
img11on = new Image();
img11on.src = "./gifs/n3_revon.gif";
img12on = new Image();
img12on.src = "./gifs/n3_sedon.gif";
img13on = new Image();
img13on.src = "./gifs/n3_vedon.gif";
img14on = new Image();
img14on.src = "./gifs/n1_homeon.gif";
img15on = new Image();
img15on.src = "./gifs/n1_relon.gif";
img16on = new Image();
img16on.src = "./gifs/n3_preon.gif";




img1off = new Image();
img1off.src = "./gifs/n1_abo.gif";
img2off = new Image();
img2off.src = "./gifs/n1_all.gif";
img3off = new Image();
img3off.src = "./gifs/n1_new.gif";
img4off = new Image();
img4off.src = "./gifs/n1_ord.gif";
img5off = new Image();
img5off.src = "./gifs/n1_sup.gif";
img6off = new Image();
img6off.src = "./gifs/n2_ne.gif";
img7off = new Image();
img7off.src = "./gifs/n2_pr.gif";
img8off = new Image();
img8off.src = "./gifs/n2_re.gif";
img9off = new Image();
img9off.src = "./gifs/n2_ta.gif";
img10off = new Image();
img10off.src = "./gifs/n3_boa.gif";
img11off = new Image();
img11off.src = "./gifs/n3_rev.gif";
img12off = new Image();
img12off.src = "./gifs/n3_sed.gif";
img13off = new Image();
img13off.src = "./gifs/n3_ved.gif";
img14off = new Image();
img14off.src = "./gifs/n1_home.gif";
img15off = new Image();
img15off.src = "./gifs/n1_rel.gif";
img16off = new Image();
img16off.src = "./gifs/n3_pre.gif";











}

function imgAct(imgName) {
    if (br == "n3") {
        document[imgName].src = eval(imgName + "on.src");
    }
}
function imgInact(imgName) {
    if (br == "n3") {
        document[imgName].src = eval(imgName + "off.src");
    }
}