if (document.images) {            // Active Images
            img1on = new Image();
            img1on.src = "../menu/home_on.gif";
            img1off = new Image();
            img1off.src = "../menu/home_off.gif";
            img2on = new Image();
            img2on.src = "../menu/espanol_on.gif";
            img2off = new Image();
            img2off.src = "../menu/espanol_off.gif";
            img3on = new Image();
            img3on.src = "../menu/francais_on.gif";
            img3off = new Image();
            img3off.src = "../menu/francais_off.gif";
            img4on = new Image();
            img4on.src = "../menu/about_on.gif";
            img4off = new Image();
            img4off.src = "../menu/about_off.gif";
            img5on = new Image();
            img5on.src = "../menu/buy_on.gif";
            img5off = new Image();
            img5off.src = "../menu/buy_off.gif";
            img6on = new Image();
            img6on.src = "../menu/sell_on.gif";
            img6off = new Image();
            img6off.src = "../menu/sell_off.gif";
            img7on = new Image();
            img7on.src = "../menu/faq_on.gif";
            img7off = new Image();
            img7off.src = "../menu/faq_off.gif";
            img8on = new Image();
            img8on.src = "../menu/contact_on.gif";
            img8off = new Image();
            img8off.src = "../menu/contact_off.gif";
            img9on = new Image();
            img9on.src = "../menu/terms_on.gif";
            img9off = new Image();
            img9off.src = "../menu/terms_off.gif";
            img10on = new Image();
            img10on.src = "../menu/return_on.gif";
            img10off = new Image();
            img10off.src = "../menu/return_off.gif";
            img11on = new Image();
            img11on.src = "../menu/school_on.gif";
            img11off = new Image();
            img11off.src = "../menu/school_off.gif";
            img11bon = new Image();
            img11bon.src = "../menu/news_company_on.gif";
            img11boff = new Image();
            img11boff.src = "../menu/news_company_off.gif";
            img12on = new Image();
            img12on.src = "../menu/tab_general_on.gif";
            img12off = new Image();
            img12off.src = "../menu/tab_general_off.gif";
            img13on = new Image();
            img13on.src = "../menu/tab_school_on.gif";
            img13off = new Image();
            img13off.src = "../menu/tab_school_off.gif";
            img14on = new Image();
            img14on.src = "../menu/tab_purchase_on.gif";
            img14off = new Image();
            img14off.src = "../menu/tab_purchase_off.gif";
            img15on = new Image();
            img15on.src = "../menu/tab_new_on.gif";
            img15off = new Image();
            img15off.src = "../menu/tab_new_off.gif";
            img16on = new Image();
            img16on.src = "../menu/tab_virgin_on.gif";
            img16off = new Image();
            img16off.src = "../menu/tab_virgin_off.gif";
       }

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}