if (document.images) {
image0 = new Image;
image1 = new Image;
image2 = new Image;
image0.src = 'images/wh1.gif';
image1.src = 'images/wh3.jpg';
image2.src = 'images/wh4.gif';
} else {
image0 = '';
image1 = '';
image2 = '';
document.rollimg = '';
}