[Zope-dev] Is there a function to get the object type?

Hi guys, I'm trying to write a function that checks to see if the current object is a 'Folder'. I am using this tutorial as a reference: http://plone.org/documentation/how-to/pre-populated-folder To create a new content object, the following command is used: parent.invokeFactory(id=id, type_name='Folder') Is there a function that can check what type this newly created object is? Obviously its 'Folder' in this example, but I'd like to be able to get the type_name of an object returned anywhere in my site to see if it is a 'Folder'. Thanks, Mike