Non-Printing sections

hi

I've got a toolbar that appears on every page 
of my rather dynamic web. I'd like the users
to be able to print pages from my web without
the toolbar wasting their ink.

Because the contents of the toolbar are highly
variable, I can't use frames (and for other reasons).
Is there anyway to use cascading style sheets to
turn printing off for some sections (spans?).
Is there any plans for this?

Grahame