How to use Math random() distribution three div?

[youlichika]

I have 3 divs. I want distribution them random (when refresh the windows, three divs' position will be changed)
I think Math random() can solve this problem, but how to do that? Thanks.

<div id="div1">...</div>
<div id="div2">...</div>
<div id="div3">...</div>
<script>
Math.floor(Math.random()*3)+1;
...
</script>

 

[angelwatt]

var divID = 'div' + Math.floor(Math.random()*3)+1;
var theDiv = document.getElementByID(divID);