<!--
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
        if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version = "n3";
        else version = "n2";
        if (browserName == "Netscape" && browserVer >= 3) version = "n3";

        if (version == "n3") {
        home_on = new Image();
        home_on.src = "/images/home_on.gif";
		catalog_on = new Image();
        catalog_on.src = "/images/catalog_on.gif";
		contact_on = new Image();
        contact_on.src = "/images/contact_on.gif";
                                
        home_off = new Image();
        home_off.src = "/images/home_off.gif";
		catalog_off = new Image();
        catalog_off.src = "/images/catalog_off.gif";
		contact_off = new Image();
        contact_off.src = "/images/contact_off.gif";
        }

function img_act(imgName) {
        if (version == "n3") {
        imgOn = eval(imgName + "on.src");
        document [imgName].src = imgOn;
        }
}
function img_inact(imgName) {
        if (version == "n3") {
        imgOff = eval(imgName + "off.src");
        document [imgName].src = imgOff;
        }
}
// -->