Different markup for index.php

Hi Hannes,

I want the ability to produce different markup for the beta home page. I don't want to modify the markup for the current stable home page or risk messing it up. Do you have any suggestions on how I should do this?

One idea I had was to copy index.php to index-stable.php, add a index-beta.php and then make index.php include the appropriate one based on the result of myphpnet_beta().

Thoughts?
Stew