sub Drop{
	my ($lb, $dnd_source, $c_dest, $sel, $dest_x, $dest_y) = @_;
	my $group_item = $dnd_source->cget('-text');
	my $nearest = $lb->GetNearest($dest_x, $dest_y);
	if (defined $nearest){
		my $dir_item = $lb->entrycget($nearest, '-text');
		print "*** $dir_item ***\n";    ### DEBUG: Show target value
		&AddGroupToDir($group_item, $dir_item);
		$lb->see($nearest);
	}
}