<!--
        if (document.images) {            // Active Images
            img_ho_off = new Image(); 
            img_ho_off.src = "images/home1.jpg"; 
            img_ho_on = new Image();      
            img_ho_on.src = "images/home2.jpg";
            img_or_off = new Image(); 
            img_or_off.src = "images/orders1.jpg"; 
            img_or_on = new Image();      
            img_or_on.src = "images/orders2.jpg";
            img_co_off = new Image(); 
            img_co_off.src = "images/contact1.jpg"; 
            img_co_on = new Image();      
            img_co_on.src = "images/contact2.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");
        }
}
// -->