FUNCTION N_VigdrlsIfc(n_vGridIndex)

integer, intent(in) :: n_vGridIndex
DESCRIPTION 
Release a grid to allow the space in the vertical-grid repository to be re-used.  
Once a grid has been released by a call to this method, it can be re-used to store 
more grids using N_ViqkdefIfc_X.

Author: Jeff Blezius - Nov 2003
ARGUMENTS

Input:
n_vGridIndex	index of the vertical grid to be released: obtained from N_ViqkdefIfc_X
Output:
N_VigdrlsIfc	error indication: 0 means 'no error'; see $ARMNLIB/include/ViConstants_f90.h for the significance of other values

SEE ALSO