This webpage is a simple boat booking system.
After some thought it should be a session booking system.
A person books a session on a Boat, for a period, as skipper or crew, for a type of session
Each booking appends the data wrapped in gbF() in the guestbook file.
Cancellations:- Modify this page to add CANCEL to a copy of the booking. These tend to be done after the booking is made, so after the data is loaded, work backwards and tag the cancelled bookings.
Review existing bookings and updates and amendments in case of a clash.