[Zope] nested dtml-in

Hi all! I have two sql-method (Master, Detail) I would like to do something like this: Group Code Description <dtml-in Master> <dtml-in "second(MasterCode='<dtml-sqlvar Master.Code>' type=String )"> <dtml-sqlvar Master.Code> <dtml-sqlvar Detail.Code> <dtml-sqlvar Detail.Description> </dtml-in> </dtml-in> How can I do it? TIA, Cesare Cesare Raoss Planning srl Via Bolzano 45 38014 Gardolo (TN) cesare@planningsrl.it http://www.planningsrl.it