window_select_stack_c

	status.i4.v = window_select_stack_c(top_row.i4.v, left_column.i4.v)

	This routine allows the user to pop windows to the front or
	push them to the back.

	top_row		top row of menu (use WMNGR_CENTER for centering
			or WINDOW_xxx_COORD macros in macro for special
			positioning)
	left_column	left column of menu (use WMNGR_CENTER for centering
			or WINDOW_xxx_COORD macros in macro for special
			positioning)

	This function returns ACNET status values as follows:

	OK			success
	CBS_NO_WINDOW		no restackable windows exist
	CBS_MEMFAIL		failed in allocating dynamic memory

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	window_select_pop_c, window_select_push_c, window_to_back,
	window_to_front, scroll_menu(_c)

	C/C++ usage:

	int	status;
	int	top_row = WMNGR_CENTER;
	int	left_column = WMNGR_CENTER;

	status = window_select_stack_c(top_row,left_column);