ADAS Subroutine xfesym

      FUNCTION XFESYM ( IZ0 )
C-----------------------------------------------------------------------
C
C ************** FORTRAN77 CHARACTER*2 FUNCTION: XFESYM ****************
C
C PURPOSE: TO RETURN THE SYMBOL FOR THE ELEMENT WITH NUCLEAR CHARGE IZ0
C          (CHARACTER*2 FUNCTION VERSION OF 'XXESYM')
C
C CALLING PROGRAM: GENERAL USE
C
C FUNCTION:
C
C          (C*2)  XFESYM  = FUNCTION NAME -
C                           SYMBOL OF ELEMENT WITH NUCLEAR CHARGE 'IZ0'
C          (I*4)  IZ0     = ELEMENT NUCLEAR CHARGE
C
C          (C*2)  SYMBOL()= SYMBOLS OF FIRST 92 ELEMENTS.
C                           ARRAY DIMENSION => NUCLEAR CHARGE
C
C NOTES:    IF NUCLEAR CHARGE IS OUT OF RANGE, I.E.NOT BETWEEN 1 & 92,
C           THEN THE CHARACTER STRING 'XFESYM' IS RETURNED BLANK.
C
C ROUTINES: NONE
C
C
C AUTHOR:   PAUL E. BRIDEN (TESSELLA SUPPORT SERVICES PLC)
C           K1/0/81
C           JET EXT. 4569
C
C DATE:     12/02/91
C
C UPDATES:  25/10/94 L. JALOTA (TESSELLA SUPPORT SERVICES PLC)
C		     CHANGED CASE OF SYMBOL TO LOWER CASE FOR UNIX
C
C VERSION:	1.2 
C UPDATES:  17/09/99 HUGH SUMMERS - INCREASED ELEMENT NUMBER TO 92 
C
C-----------------------------------------------------------------------
C-----------------------------------------------------------------------
      INTEGER             IZ0