[Zope] NEWBIE: manage_delObject, manage_delProperties?

I'm trying to figure out how to delete an object from Zope. I use manage_editProperties to add and index, and manage_changeProperties to edit and reindex, that all works fine, but I'm not sure how to delete. I am using : <dtml-call "propertysheets.entry_info.manage_delProperties(REQUEST)"> and this just gives me an error message and I also tried: <dtml-call "propertysheets.entry_info.manage_delObject(REQUEST)"> but that errors out too. I am using this on a database object that contains the fields: id (this is set by ZopeTime) first_name last_name email_address mail_request interest_area Can anybody point out what I am doing wrong? Michael