;++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
;*NAME:                     pics_db_update
;
;*CATEGORY:                 PMAS Instrument Control Software
;
;*PURPOSE:                  update picsdb Data Base String Array
;
;*CALLING SEQUENCE:         pics_db_update, errormsg, picsdb, picsdbup,
;                                          T_used [,/KEYWORD]
;
;*PARAMETERS:        in:    cblock     CONSTANTS block 
;                           picsdb     Data Base String Array (FITS Header Format), also out
;                           picsdbup   DB with update time in comments, also output
;                    out:   errormsg
;                           picsdb     Data Base String Array in FITS Header Format
;                           picsdbup   DB with update time in comments
;                           list       strarr with Keywords (picsdb entries to be updated)
;                           not_on_list  strarr with Keywords which were not found in picsdb
;                           T_used     time [sec] used to create DB (optional)
;               keywords:   /VERSION   return version number (do nothing else)
;                                      
;*EXAMPLES:
;
;*SYSTEM VARIABLES USED:
;
;*COMMON BLOCKS:
;
;*INTERACTIVE INPUT:
;
;*SUBROUTINES CALLED:
;
;*FILES USED:
;
;*SIDE EFFECTS:
;
;*RESTRICTIONS:
;
;*NOTES:
;
;*PROCEDURE:
;
;*MODIFICATION HISTORY:
pics_db_update_VERSION = 'pics_db_update.pro Version 0.4 --- 26/08/02 mmr'

;
;	20/05/02	MMR	initial programming (V 0.1)
;       23/08/02        mmr     falsely remaining vardummy statements removed
;       26/08/02        mmr     additional parameter cblock added
;
;*AUTHORS:
;
;	MMR		Martin M. Roth	Astrophysikalisches Institut Potsdam
;					An der Sternwarte 16
;					D-14547 Potsdam  
;					Tel. +49 - 331 - 7499 313
;                                       email: mmroth@aip.de
;-