img1=new Array(6);
img1[0]="<img border='0' src='top/img1.jpg' width='450' height='720'>";
img1[1]="<img border='0' src='top/img2.jpg' width='450' height='720'>";
img1[2]="<img border='0' src='top/img3.jpg' width='450' height='720'>";
img1[3]="<img border='0' src='top/img4.jpg' width='450' height='720'>";
img1[4]="<img border='0' src='top/img5.jpg' width='450' height='720'>";
img1[5]="<img border='0' src='top/img6.jpg' width='450' height='720'>";
img1No=Math.floor(6*Math.random());
document.write(img1[img1No]);