function random_imglink(){
var myimages=new Array()

myimages[1]="images/rotation/rotation1.gif"
myimages[2]="images/rotation/rotation2.gif"
myimages[3]="images/rotation/rotation3.gif"

var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<img src="'+myimages[ry]+'" border=0 height=200 width=600>')
}
random_imglink()