/*
      *  File:   name of file it resides in
      *  System: part of what overall system
      *  Author: who wrote it  (name and username)
      *  Date:   date originally written
      *  Description:  short description of what it is
      *
      *  Updates:   everyone who changes something logs
      *             name, username   date   what changed & why
      *
      */



    Could also have:

       Supporting documents
       Contents list of all functions and description of each
       List of all global data defined
       List of all #includes (external file dependancies)
       Parameters passed or passed to it and values returned
       External variables
       Functions it calls
       Functions that call it, etc.