function random_imglink(){
var myimages=new Array()
myimages[1]="images/testT11.jpg"
myimages[2]="images/testT12.jpg"
myimages[3]="images/testT14.jpg"
myimages[4]="images/testT15.jpg"
myimages[5]="images/advantages.gif"


var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<img src="'+myimages[ry]+'" width=145>')
}
random_imglink()