browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3)
version = "n3";
else 
version = "n2";        
if (browserName == "Microsoft Internet Explorer" && browserVer >= 4)
version = "n3";                       
if (version == "n3") {
imageBrowseon = new Image(0, 0);
imageBrowseon.src = "images/nav/home_browse_on.gif";
imageStoreon = new Image(0, 0);
imageStoreon.src = "images/nav/home_store_on.gif";
imageOrderon = new Image(0, 0);
imageOrderon.src = "images/nav/home_order_on.gif";
imageLinkson = new Image(0, 0);
imageLinkson.src = "images/nav/home_links_on.gif";
imageBlogon = new Image(0, 0);
imageBlogon.src = "images/nav/home_blog_on.gif";
imageShopon = new Image(0, 0);
imageShopon.src = "images/nav/home_shop_on.gif";
          
imageBrowseoff = new Image(0, 0);
imageBrowseoff.src = "images/nav/browse_off.gif";
imageStoreoff = new Image(0, 0);
imageStoreoff.src = "images/nav/store_off.gif";
imageOrderoff = new Image(0, 0);
imageOrderoff.src = "images/nav/order_off.gif";
imageLinksoff = new Image(0, 0);
imageLinksoff.src = "images/nav/links_off.gif";
imageBlogoff = new Image(0, 0);
imageBlogoff.src = "images/nav/blog_off.gif";
imageShopoff = new Image(0, 0);
imageShopoff.src = "images/nav/shop_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;
}
}