<!--

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document.images[imgName].src = eval(imgName + "on.src"); 
        }
}
// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document.images[imgName].src = eval(imgName + "off.src");
        }
}
// -->