if (document.images) {            // Active Images
            img1on = new Image();      
            img1on.src = "images/Button_HomeON.jpg";

            img2on = new Image();      
            img2on.src = "images/Button_ArchivesON.jpg";

            img3on = new Image();      
            img3on.src = "images/Button_SearchON.jpg";

            img4on = new Image();      
            img4on.src = "images/Button_AboutON.jpg";
            
            img5on = new Image();      
            img5on.src = "images/Button_ContactON.jpg";

            img6on = new Image();      
            img6on.src = "images/Button_AdvertisersON.jpg";
            
            img7on = new Image();      
            img7on.src = "images/Button_SubscribeON.jpg";
            
            img8on = new Image();      
            img8on.src = "images/Button_HowToAdvertiseON.jpg";
            
            img9on = new Image();      
            img9on.src = "images/Button_PlaceON.jpg";



            img1off = new Image();      
            img1off.src = "images/Button_Home.jpg";

            img2off = new Image();      
            img2off.src = "images/Button_Archives.jpg";

            img3off = new Image();      
            img3off.src = "images/Button_Search.jpg";

            img4off = new Image();      
            img4off.src = "images/Button_About.jpg";
            
            img5off = new Image();      
            img5off.src = "images/Button_Contact.jpg";

            img6off = new Image();      
            img6off.src = "images/Button_Advertisers.jpg";  
            
            img7off = new Image();      
            img7off.src = "images/Button_Subscribe.jpg";
            
            img8off = new Image();      
            img8off.src = "images/Button_HowToAdvertise.jpg";  
            
            img9off = new Image();      
            img9off.src = "images/Button_Place.jpg";     
            }

// 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");
        }
}