[Zope] change object ownership from DTML?

I'm allowing users to initialize their own folders, but I've run into a problem with ownership. If I simply do manage_addFolder(), the folder is created "unowned". I feel like I've looked everywhere for a clue on how to set the ownership, but I haven't caught it. Surely I'm missing something incredibly obvious (to everyone else). Anyone want to enlighten me? I'd especially appreciate a pointer to how I should have figured this out on my own. Thank you. --kyler