Ading Links To Random Images

I have this script for putting up images at random, it works fine. I want to know how to put a link on each images, like if "image1.gif" is displayed, it links to "http://www.google.com", if "image2.gif" is displayed, it links to "hotmail.com", and so on. I attempted to figure out the problem myself, but the search was fruitless.

<script language="JavaScript">
<!--
function random_imglink(){
var myimages=new Array()
myimages[1]="image1.gif"
myimages[2]="image2.gif"
myimages[3]="image3.gif"
myimages[4]="image4.gif"
myimages[5]="image5.gif"
myimages[6]="image6.gif"

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