How to count weeks in a date range?

[Anonymous]

Hi,

how can I count, in script,  weeks in a data range, considering that I can have different years?

If EndDate and StartDate are weeks, I cannot do something like this because I have different years, so I can have week #3 twice, for 2012 and 2013.

Load Distinct

          weekend('$(EndDate)' - Recno() +1) as DATA_GIACENZA

          AutoGenerate( '$(EndDate)' - '$(StartDate)');

How can I do that?
Thanks a lot!