Is it possible to use math.random to generate web app item name?

I think I figured it out. If anybody is interested:

<script>

var i=Math.random();

document.getElementById('ItemName').value=i;

</script>

I should add that if you are trying to do this, be sure to place your script AFTER the element you want to be pre-populated. Otherwise, the script will run before the item loads and it won't work.