How to made if and else in vbulletin?

[BrotherX]

No, I want to display different banners for different forums, no different user groups.

Banner 1 for forumID35
Banner 2 for forumID67
...
Banner 5 for forumID32
Banner 6 for all other forum ID's on my forum

So we need command else and if. I know something about that, but I don't have idea how to made that in vbulletin.

I want to display different banners on different forums, so I have few banners (for example 5) and I want every banner for one forum. So five banners for five forums. Now becouase I have more than for example 50 forums, for rest I want to display one general banner, so when users are on the forums which don't have own banner (from group of the 5 banners) I want to display one general banner.