var base = "../images/";
if (document.images) {
        img1on = new Image();   img1on.src = base + "home_on.gif";
        img2on = new Image();   img2on.src = base + "products_on.gif";
        img3on = new Image();   img3on.src = base + "info_on.gif";  
        img4on = new Image();   img4on.src = base + "clients_on.gif";
        img5on = new Image();   img5on.src = base + "careers_on.gif";
        img6on = new Image();   img6on.src = base + "news_on.gif";
        img7on = new Image();   img7on.src = base + "imarket_on.gif";
        img8on = new Image();   img8on.src = base + "dbasia_on.gif";

        // Inactive images
        img1off = new Image();   img1off.src = base + "home_off.gif";
        img2off = new Image();   img2off.src = base + "products_off.gif";
        img3off = new Image();   img3off.src = base + "info_off.gif";  
        img4off = new Image();   img4off.src = base + "clients_off.gif";
        img5off = new Image();   img5off.src = base + "careers_off.gif";
        img6off = new Image();   img6off.src = base + "news_off.gif";
        img7off = new Image();   img7off.src = base + "imarket_off.gif";
        img8off = new Image();   img8off.src = base + "dbasia_off.gif";
        }
        
        function imgOn(imgName) {
            if (document.images) {
                document[imgName].src = eval(imgName + "on.src");       
            }
    }

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