Conditional display of banners

[RFID Talk]

Thank you everyone for your responses.

I have tried your suggestions, but unfortunately it doesn't appear to be working. Only the ELSE part of the condition is ever executed, even when I'm in the forum whose forumid is specified in the IF condition. Here is the code I'm using in the header template:

<!-- banner -->
<br />
<div align="center">

<if condition="$forum[forumid] == 10"><iframe ad="special" width="728" height="90" ... more HTML ad code ... ></iframe></if>
<else><iframe ad="normal" width="728" height="90" ... more HTML ad code ... ></iframe></else>

</div>
<!-- /banner -->

So basically, even when I am in forum 10, the condition does not evaluate to true.

As another clue, using the HTML code below I attempted to display the $forum[forumid] variable in the header template to see what it's value was. But no value displays, leading me to believe that $forum[forumid] is null. Could it be that $forum[forumid] is not being set?

<strong>Forum:</strong> $forum[forumid]