Hi, Firstly: for a live site, ie one that's actually going to be used commercially, what is best: zsession or the default session environment shown at the end of the "using basic zope objects" chapter of the zope book? If the second is okay, then where can I find a howto or other docs that might show me how to set a value in a session using dtml? The reason is I don't want to have to do a python script each time I want to set a value... I don't know if this reasoning is justified... I've been trying <dtml-with SESSION mapping> <dtml-call set('banana',1)> (or SESSION.set, without the dtml-with) <dtml-var banana> But it gives a keyerror. All the examples I've found online and in the shopping cart example or in the zope book are python scripts. Is there a reason for this? Thanks, Ale -- Alejandro Fernandez Electronic Group Interactive --+34-65-232-8086--