##parameters=key=None 
# $Id: getAccoHallBeds.py 1393 2007-02-05 21:42:08Z joachim $
"""
Return the bedletters as an vocabulary

"""
doc = context.getContent()
if key is None:
    return [(l,l) for l in 'ABCDEFGH'[:doc.beds_per_room]]
return key