browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3 ||
browserName == "Microsoft Internet Explorer" && browserVer >= 4)
compatible = "yes";
else compatible = "no";

toplink1on = new Image;
toplink1on.src = "sandhaufen/pics/biomaris.gif";
toplink1off = new Image;
toplink1off.src = "sandhaufen/pics/biomaris-over.gif";

toplink2on = new Image;
toplink2on.src = "sandhaufen/pics/mode.gif";
toplink2off = new Image;
toplink2off.src = "sandhaufen/pics/mode-over.gif";

toplink3on = new Image;
toplink3on.src = "sandhaufen/pics/events.gif";
toplink3off = new Image;
toplink3off.src = "sandhaufen/pics/events-over.gif";

toplink4on = new Image;
toplink4on.src = "sandhaufen/pics/news.gif";
toplink4off = new Image;
toplink4off.src = "sandhaufen/pics/news-over.gif";

toplink5on = new Image;
toplink5on.src = "sandhaufen/pics/contact.gif";
toplink5off = new Image;
toplink5off.src = "sandhaufen/pics/contact-over.gif";

toplink6on = new Image;
toplink6on.src = "../pics/nordic07/26-09-09_1127_l.jpg";
toplink6off = new Image;
toplink6off.src = "../pics/nordic07/26-09-09_1127.jpg";

toplink7on = new Image;
toplink7on.src = "../pics/nordic07/26-09-09_1128_l.jpg";
toplink7off = new Image;
toplink7off.src = "../pics/nordic07/26-09-09_1128.jpg";

toplink8on = new Image;
toplink8on.src = "../pics/nordic07/26-09-09_1129_l.jpg";
toplink8off = new Image;
toplink8off.src = "../pics/nordic07/26-09-09_1129.jpg";

toplink9on = new Image;
toplink9on.src = "../pics/nordic07/26-09-09_1135_l.jpg";
toplink9off = new Image;
toplink9off.src = "../pics/nordic07/26-09-09_1135.jpg";

toplink10on = new Image;
toplink10on.src = "../pics/nordic07/26-09-09_1226_l.jpg";
toplink10off = new Image;
toplink10off.src = "../pics/nordic07/26-09-09_1226.jpg";

function img_act(imgName) {
if (compatible == "yes") {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;

}
}

function img_inact(imgName) {
if (compatible == "yes") {
imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff;

}
}