I'm fooling around with the tree tag examples Phillip J. Elby et al. worked out a few weeks ago. Here is what I have: <!--#with "_.namespace(sqid=0, param=1)"--> <!--#tree id=sqid branches_expr="adr_suche3(sqid=sqid, param=param, Crit1_and_or=Crit1_and_or)" single=0--> Crit1_and_or is a list coming from a request, which I want to use in the SQL method ('adr_suche3'). The tree works fine in the first level. With the second level I receive an 'Error value: Crit1_and_or'. The Error value also occurs if I try to give Crit1_and_or a new value in the SQL method (e.g. 'select *, '' as Crit1_and_or'). Without this parameter tree and sql-method do, what they should. What I'm doing wrong here? thomas -- fon: ++49 (0)40 42878 3781 fax: ++49 (0)40 42878 2728