var js = 1.0;

Version = parseInt(navigator.appVersion);

if (navigator.appName == "Netscape")
    js = ((Version >= 4) ? 1.2 : ( (Version == 3) ? 1.1 : 1.0 ));
else
    if (navigator.appVersion.indexOf('MSIE') != -1) 
        js = ((Version >= 4) ? 1.1 : 1.0);

function changeImages(oldImage,newImage) {
    if (js > 1.0) document [oldImage].src = eval(newImage + ".src");
}

if (js > 1.0) {
    Home_mo = new Image();
    Home_mo.src  = "images/nav/Home_mo.png";

    Home = new Image();
    Home.src  = "images/nav/Home.png";

    About_mo = new Image();
    About_mo.src  = "images/nav/About_mo.png";

    About = new Image();
    About.src  = "images/nav/About.png";

    Products_mo = new Image();
    Products_mo.src  = "images/nav/Products_mo.png";

    Products = new Image();
    Products.src  = "images/nav/Products.png";

    Capabilities_mo = new Image();
    Capabilities_mo.src  = "images/nav/Capabilities_mo.png";

    Capabilities = new Image();
    Capabilities.src  = "images/nav/Capabilities.png";

    News_mo = new Image();
    News_mo.src  = "images/nav/News_mo.png";

    News = new Image();
    News.src  = "images/nav/News.png";

    Locations_mo = new Image();
    Locations_mo.src  = "images/nav/Locations_mo.png";

    Locations = new Image();
    Locations.src  = "images/nav/Locations.png";

    Contact_mo = new Image();
    Contact_mo.src  = "images/nav/Contact_mo.png";

    Contact = new Image();
    Contact.src  = "images/nav/Contact.png";
}