<!--
if (document.images) {
image1on = new Image();
image1on.src = "swap_pic1.gif";
image1off = new Image();
image1off.src = "swap_pic.gif";

}

function turnOn(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "on.src");
}
}

function turnOff(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "off.src");
}
}
-->