if (document.images) {
            img1on = new Image();		// Active Images
            img1on.src ="images/logo_on.jpg";
            img2on = new Image();
            img2on.src ="images/header_schedule_on.jpg";
            img3on = new Image();
            img3on.src ="images/header_episodes_on.jpg";
            img4on = new Image();
            img4on.src ="images/header_about_on.jpg";
            img5on = new Image();
            img5on.src ="images/header_contact_on.jpg";


            img1off = new Image();		// Inactive Images
            img1off.src ="images/logo.jpg";
            img2off = new Image();
            img2off.src ="images/header_schedule.jpg";
            img3off = new Image();
            img3off.src ="images/header_episodes.jpg";
            img4off = new Image();
            img4off.src ="images/header_about.jpg";
            img5off = new Image();
            img5off.src ="images/header_contact.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");

        }
}