Help The Mentally Challenged

Hey guys I am feeling pretty darn challenged I need to add a browser check to my forum main page so I can serve a watered down version of our header to viewers using NS 4.xx, so I have this function

PHP Code:

 <?php 
function doriteheader() { 
// serve correct header by browser 
global $HTTP_USER_AGENT; 

if (eregi("Mozilla/4.",$HTTP_USER_AGENT)) { // browser is NS4 
return "$footer"; 

} else { // other browsers 
return $header; 

} 

} 
?>

I tried placing this in the template, but that didn?t work so I am (don?t laugh too hard I new at this) assuming that means I can?t include php directly in the template. So if that is true where do I place this function so that I can control which header is called in the forum_home template? (I used footer in place of my second header name so it was easy to see if this worked or not)

ps; if this isn't where this post should be, someone please move it where it should
go
As always thanks for your time

[Velocd]

Not entirely sure what your intent is, since I briefly skimmed to the problem, but you are correct that PHP code cannot be added directly into the template.

If it is affecting the forum_home template, try placing the code in the index.php file of your forum root directory.

[drews]

you can try puttin that code in the phpinclude template. I think that is the only template that allows PHP.

[Erwin]

drews is correct. Also, the forum global.php file can be used too.

[drews]

Wow...i was right..strike up another tally for the amount of time i have been right....Hey, I am up to.... one ....now... lol.

[caislander]

I still haven't been able to figure this out I tried putting my function in each of the places suggested thus far and can't get it to work. So let me try & tell you what I am trying to do maybe someone can suggest a better way.
We have a header that fails (really goes to pieces) in NS 4.xx so somehow we need to determine if the viewer is useing NS 4.xx and if so serve them an alternate header (actualy an alternate set of buttons) is there some other way to do it?