please help electric probs

[*tell*]

finished work today started the car and used the wipers
and they didnt work
so i thought maybe the stalk had gone?
but theres list on things that dont work
main beams
wipers
elecy windows
heater switch
it all was working last night?
any ideas

[robiwill]

water in the fusebox :-( sounds most likely for that many things to go

[*tell*]

have been playing around and found that if i
hold full beam on i can get the all to work 
but when i let go they stop working

[*tell*]

it was the ignition switch 
but now can drive in the wet and a night