How do you make a random button?

I need some tutorial or code that will help me make a button that will give me a button that will take me to a random link!

-I think I found one....

Code:

<!--
/*
Random link button- By JavaScript Kit (http://javascriptkit.com)
Over 300+ free scripts!
This credit MUST stay intact for use
*/

//specify random links below. You can have as many as you want
var randomlinks=new Array()

randomlinks[0]="http://freewarejava.com"
randomlinks[1]="http://javascriptkit.com"
randomlinks[2]="http://dynamicdrive.com"
randomlinks[3]="http://cnn.com"
randomlinks[4]="http://www.geocities.com"

function randomlink(){
window.location=randomlinks[Math.floor(Math.random()*randomlinks.length)]
}
//-->
</script>
<form>
<p><input type="button" name="B1" value="Random Link >>" onclick="randomlink()"><p></p> </form>

<!--Uncomment below to use a regular text link instead
<a href="javascript:randomlink()">Random Link</a>
-->[code]