Rails - Apr 2005 - Accessing a model class inside ApplicationHelper

Greetings,

I''ve got a class called Nameable with a class method for_name which (as
one might imagine) returns the instance with a given name. My question 
is, how can I get access to this class from inside the ApplicationHelper 
module. Right now my application complains that Nameable is an undefined 
constant, but only from inside ApplicationHelper.

Peter.