[Zope] Creating Document with random num as ID?

I need to create DTML Documents with a [pseudo]unique [pseudo]random id. I can create the objects okay using manage_clone, and I have a method that generates my "unique" "random" id, but I can't seem to create either: a) create the object and then rename it using the random number, or b) [more desirable] create the object with the random id. Ideas? Thanks.