if (document.images) {
image1 = new Image;
image2 = new Image;
image3 = new Image;
image4 = new Image;
image5 = new Image;
image1.src = 'op33\/2_1.jpg';
image2.src = 'op33\/3_1.jpg';
image3.src = 'op33\/yl_1.jpg';
image4.src = 'op33\/5_1.jpg';
image5.src = 'op33\/4_1.jpg';
} else {
image1 = '';
image2 = '';
image3 = '';
image4 = '';
image5 = '';
document.rollimg = '';
}