Backgrounds off

[Michal Kvasnicka <qasar@econ.muni.cz>]

Hallo,

one more question: In my paper document I'm using \setupbackgrounds
to put some chapter-dependent material to the left margin. I do want to
change it every chapter (that's o.k.), but I do also want to turn it off
on
the chapter page. How can I do it?

By the way, how can I link some command (macro) to shipout? Can I
simply use something like this:
    \let\orishipout=\shipout
    \def\shipout{\dosomethin\orishipout}
or is \shipout redefined in the ConTeXt in a way that doesn't allow to
use this simple hook securely?

Many thanks for your answers
Michal Kvasnicka

--
Economics is the only field in which two people can get a Nobel Prize
for saying exactly the opposite things.