role to class automatically

Another question.  Is there a way to globally force all role attributes to 
show up as a class on the corresponding div or span in the HTML output?  Or 
some other straightforward way to arbitrarily add a class to the eventual 
output?

-- 
Larry Garfield			AIM: LOLG42
		ICQ: 6817012

"If nature has made any one thing less susceptible than all others of 
exclusive property, it is the action of the thinking power called an idea, 
which an individual may exclusively possess as long as he keeps it to 
himself; but the moment it is divulged, it forces itself into the possession 
of every one, and the receiver cannot dispossess himself of it."  -- Thomas 
Jefferson