Get content from template..

[Pandemix]

I made a template on one of my styles for a custom navbar. It has a very large code in it, but is there something that I can type in that will take the coding from the custom template I made and put it to where I want? I don't want to put this huge code I made into the header common template, just a simple phrase that will act like it put the code there.

Like what this code does, except gets the content from the template I want and puts it in the header:

<?php file_get_contents('http://www.yoursite.com/ads.php'); ?>

I want this navbar to show up in the "header" part in the skins Common Templates section.

I hope I explained this well enough.