; THIS PROCEDURE WILL ALLOW EMULATE THE EDITING OF
; TYPE FIELD. GMRADEF IS THE VARIABLE THAT WILL BE RETURNED, AND MUST
; BE PASSED BY REFERENCE. IT SHOULD BE SET TO THE DEFAULT VALUE OF
; THE TYPE PRIOR TO THE EDIT AND WILL BE RETURNED AS THE NEW VALUE.
; GMRAOUT WILL BE SET TO 1 IF USER ABNORMALLY EXITS.
; INPUT VARIABLE IS INTERNAL VALUE OF TYPE FIELD FOR FILES
; 120.8 AND 120.82. THIS PROCEDURE WILL KILL GMRAX IF IT IS INVALID,
; OR WILL RETURN GMRAX IN ITS PROPER FORMAT. GMRAX MUST BE PASSED BY
; REFERENCE.