[Zope] Store text directly in an DTML Document???

Hi, can anyone tell me, if it's possible to store text out of a variable directly in an dtml-document?? I know, I can directly change the title of a document with the following code: <dtml-call "_.getitem(mydocument).manageProperties(title=REQUEST.get('new_title'))"> This writes the text of the variable 'new_title' into the title of the dtml-document 'mydocument'. I suppose, it is possible to change the content of a document the same way. But I don't know the attributs name. Who can help?? Greetings Marc