[Zope] How does one refer to the root folder?

[Andres Corrada-Emmanuel]

Hi Zopistas,
	Does one call it "PARENTS[-1]"? I'm trying to get an attribute of the root folder and I'm failing with the syntax-
	<dtml-with "rootObject=_.getitem('PARENTS[-1]')">
I now that the failure is because the object in the namespace is "PARENTS". So what is the name of the root folder?

Andres Corrada