Topic relevant Ads in Subboards

Hello,

I try to figure out how I could display topic relevant Ads in the Threads/Board view.

For example.

I have a subboard for "Cars & Motorbikes" and I would give advertiser the opportunity to buy Ads in that "Cars & Motorbikes" Threads & Topics.

I use OpenAds for the Banner Management.

Now I could make IF/ELSE Queries to select an AdView - this works fine if I have only a couple of subboards with special Ads for that part of my board. But what if I have a lot special interest boardids with special ads for that part of the board?

Is their a simple way to work out that problem?

cheers

Chris

System: vB 3.6.8(pl2) & vBSEO 3.1.0, LAMP