[tomf]

thx but maybe my question wasn't clear.

In my script I'm creating threads. Now I can't create a thread in a category - only in forums. But in the script I only have the forumid, and with just the id I can't tell if it's a forum or if it's a category. The problem is the script generates the threads and they get lost because they belong to a category. So there has to be some value in the database which tells if a forumid is a category or a forum.