[xwiki-users] more dynamic DBList properties

Hi guys, is it possible, to have a DBList property be dependent on another when being inline mode and editing a new page? Example: I have DBListProperty A which gets me 1000 selectable entries. I have DBListProperty B with like 10 entries and by selecting an entry in B, I want those entries in the A box to disappear, that should not be selectable. So to say, filter the entries with some other properties. I only think of some AJAX operations to handle somethiong like this, but hopefully you guys can give me some hints to point me into the right direction on how to do this. Thanx in advance, Sebastian