Document:     copyhead

Purpose:      Routines to copy header items from one set to another.

Category:     HEADER

File:         copyhead.c

Author:       Fred Lahuis

              COPYHEAD_ITEM       Routine to copy a number of given 
                                  header item from a given level in 
                                  the input set to a given level in 
                                  the output set.
              COPYHEAD_LEVEL      Routine to copy all header items
                                  at a given level in the input set
                                  to a given level in the output set.

Updates:      August 23 1991:    FL, Creation date.
              September 10 1991: FL, Copying of a maximum number of
                                     items at once added.