<!--

        if (document.images) {            
            img1on = new Image();   img1on.src = "products-img2.jpg"; 
            img2on = new Image();   img2on.src = "contact-img2.jpg";  
            img3on = new Image();   img3on.src = "home-img2.jpg";  
            img4on = new Image();   img4on.src = "e-maildown.jpg";


            img1off = new Image();   img1off.src = "products-img1.jpg"; 
            img2off = new Image();   img2off.src = "contact-img1.jpg";  
            img3off = new Image();   img3off.src = "home-img1.jpg";
            img4off = new Image();   img4off.src = "e-mailup.jpg";

            
        }

    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");        
            }
    }

// -->