NAME:monthname
PURPOSE:gives the name of a month
CATEGORY:
CALLING SEQUENCE:name=monthname(number)
INPUTS: number, the month number (from 1 to 12)
KEYWORD PARAMETERS:those of string fonction to specify the
format of the month (the C format)
OUTPUTS: an integer, the month's name
COMMON BLOCKS:None
SIDE EFFECTS:
RESTRICTIONS:
EXAMPLE: