hubu just a suggestion: i'd find it useful you could specify "destructor objects" along with "constructor objects" when defining zclasses. with constructor objects i define what should happen when producing an instance of a zclass. with a destructor object i could specify what will happen upon deletion of that object (eg. syncing with other data sources). right now i only have the option of messing with much of the manage_ methods (i think?) peter. -- _________________________________________________ peter sabaini, mailto: sabaini@niil.at -------------------------------------------------