PHP commands within guestbook templates

Hi. Is there any way to put PHP commands within the template files used by the guestbook? I have PHP functions to create the header and nav bar on my site, and I would like it to look the same in the guestbook. I tried surrounding my PHP code with the <?php and ?> tags like I usually would in a PHP file, but it didn't work. I looked at the HTML code that the server was creating and I saw my PHP commands in the code as if the server did not interpret them. Is there any way to work around this problem?

Elias

You would have to put the commands into the script it's self. Loading your header as a variable and then calling the variable where needed in the template.