New Post: SPCascadeDropdowns and filter in parentList

I already use the CAMLQuery Option, for filtering the childList (my form is basically a list of options, where your name has to be in another column to enable the option for you)

CAMLQuery: "<Eq><FieldRef Name='Selected_by' /><Value Type='Integer'><UserID Type='Integer'/></Value></Eq>"


Now I'm searching a way to also filter the parentList... :-/