HELP - Background jobs in csh

[gda]

	Can anyone suggest a way for a program to know if it's running
	in background ? We have a program that is partly interactive,
	but when run in background we want it to skip the interactive
	part. We tried checking if STDIN was a tty, but that didn't help.
	We think it could call up "ps" and look for itself, but there must
	be an easier way...

	Thanks for your help (in advance).

						Gray Abbott
						Creare Inc.
						{...dartvax!creare!gda}