Changing banner by per forum

[dodjer42]

I run a gaming portal. I'd like to be able to customise the forum banner depending on the area the user is browsing. Example:

game1.domain.com (game 1 banner)
game2.domain.com (game 2 banner)
Both currently reside in the webroot directory, i.e., same install files / database etc


On the other hand, would it be possible to create seperate forum installs with the same database? (I want to share user dbs etc).

game1.domain.com -> <webroot>/game1
game2.domain.com -> <webroot>/game2

Or is there a much easier solution I just dont know about?
:erm: