input fields
start date
end date
Frequency (Weekly or Monthly)

based on the frequency I need to determine the nbr of payments between 2 dates

ex.
start date = 1/30/06
end date = 4/9/06
frequency = weekly

result of calc should be 10

or if frequency = monthly

result of calc should be 2 (2 full months not just 4 - 1 given 3, must pay
attention full months of duration)

Thanks you for any and al input