if (document.images) {            // Active Images
            img1on = new Image();
            img1on.src = "images/menu_home1_on.gif";
            img1off = new Image();
            img1off.src = "images/menu_home1.gif";
            img2on = new Image();
            img2on.src = "images/menu_about1_on.gif";
            img2off = new Image();
            img2off.src = "images/menu_about1.gif";
            img3on = new Image();
            img3on.src = "images/menu_programs1_on.gif";
            img3off = new Image();
            img3off.src = "images/menu_programs1.gif";
            img4on = new Image();
            img4on.src = "images/menu_testimonials1_on.gif";
            img4off = new Image();
            img4off.src = "images/menu_testimonials1.gif";
            img5on = new Image();
            img5on.src = "images/menu_press1_on.gif";
            img5off = new Image();
            img5off.src = "images/menu_press1.gif";
            img6on = new Image();
            img6on.src = "images/menu_contact1_on.gif";
            img6off = new Image();
            img6off.src = "images/menu_contact1.gif";
            img7on = new Image();
            img7on.src = "images/menu_new1_on.gif";
            img7off = new Image();
            img7off.src = "images/menu_new1.gif";
            img8on = new Image();
            img8on.src = "images/menu_phone1_on.gif";
            img8off = new Image();
            img8off.src = "images/menu_phone1.gif";
            img9on = new Image();
            img9on.src = "images/menu_email1_on.gif";
            img9off = new Image();
            img9off.src = "images/menu_email1.gif";
            img10on = new Image();
            img10on.src = "images/menu_send1_on.gif";
            img10off = new Image();
            img10off.src = "images/menu_send1.gif";
            img11on = new Image();
            img11on.src = "images/menu_remind1_on.gif";
            img11off = new Image();
            img11off.src = "images/menu_remind1.gif";
            img12on = new Image();
            img12on.src = "images/menu_events1_on.gif";
            img12off = new Image();
            img12off.src = "images/menu_events1.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");
        }
}