sub new {
	# ... miscellany

	# Create our object!
	my $self = {};
	bless($self, $class);

	### SET UP DEFAULT VALUES ###
	#
	# We set them up here and not in the setup() because a subclass
	# which implements setup() still needs default values!

	$self->header_type('header');
	$self->mode_param('rm');
	$self->start_mode('start');

	# ... remainder of constructor,
	# including init and setup calls
}