[Zope] newbie : dtml-document properties ?

Is there a list of standard document properties anywhere ? ( title_or_id , title, id , bobobase_modification_time etc.. ) I bang my head against the wall every day, trying to find the names of standard variables within DTML-methods and documents, and have searched all over to find some reference to this... I have read the 'Zope Document Template Markup Language User's Guide" a hundred times , and scanned monthst of mailinglist-archives , trying to discover these, but i only find the occasional reference to one or two in examples.. ------------------------------------------------ Geir B Hansen geirh@funcom.com Web-designer / Graphic artist Funcom Oslo ------------------------------------------------