HOME:
	- NEW STAY
	- NEW PAYMENT
		

NEW STAY

- enter boat name:
	- list of existing boats with same/similar name: choose one
	or	
	- add a new boat: boat form
NEXT

- same insurance?:
	- yes
	or
	- no: 
		- enter company(insurance) name:
			- list of existing companies with same/similar name: choose one
			or	
			- add a new company: company form 

NEXT

- persons:
	- list of persons on this boat in the past:
		- edit
		- checkbox: is 'captain', 'crew', etc, during this stay
	- add new person: person form

NEXT

- stay: stay form (add number of passengers)

SAVE

NEW PAYMENT

- list of current stays: select one

NEXT

- bill: bill form
	- number of nights:
		- calculated if there is a departure date
		or
		- enter a number if no departure date
	- shower
	- water: number of tons used for passenger boats