Depends (n part) on your definition of a week.
One of the datepart arguments is the interval. One valid value for that argument is "ww" - which returns the week number.
So, as a simplistic example of it's use:
MyDate = Date
? MyDate
10/28/01
? DatePart("ww", MyDate)
44
which should show any "Programmer" how to apply the process to identify a group of dates within a standard week. For more info on standard functions and their use, please refer to the Help system supplied with your programming environment. I do HIGHLY recommend refering to the help system for this process, as it DOES refer attributes (e.g 'First Week of Year') and pther optional arguments which may have an impact on the reasults.
MichaelRed
m.red@att.net
There is never time to do it right but there is always time to do it over