Section for Week 8, Thursday, 3/4/99 -- HW6 GRADED TODAY -- TO PIC EMAILS
1.  Board Room reservation system:
    intro.html: a form for the user to enter name, address, password.
        Handled by reserve.cgi:
    reserve.cgi: takes the info from the intro.html form, verifies
        everything's there (if not, reprints virtual version of intro.html
        until all data is in).  If all is OK, opens the database file for
        reading.  Presents the user with choices of available timeslots
        /rooms, and takes a selection (in a virtual form handled by
        reserve2.cgi).
    reserve2.cgi: takes info from last virtual form in reserve.cgi.  Locks
        reserve2.cgi.lock, and opens the database file for reading, making
        sure the time is still available (how could it become
        unavailable?).  if all is OK, open the database for writing and
        write in the appointment.
    Where could screwups occur?  Better schemes?