Not sure if this can be done with simple formula or will this req.
programming:
Please provide example:

Basically, the Start of week can be any give day (ie Friday, or Sunday, or
Monday).
If the week starts on 2/9/09 (in this case its a Monday), than I would like
to show next week will be
(2/16/09) in cell p10

I would like to keep looping this over and over again, as I would like to
show the new date in cell P10:
so for example if today is Feb 09 2009 (Monday), next week in P10 should be
2/16/09, but if today is 2/17 or 2/19, than the P10 should read 2/23/09.

If someone starts on Friday -- 2/20/09, next week in P10 should read 2/27/09
and than if I open the spreadsheet on 3/10/09 the date should read 3/13/09.

Also, can i use the same formula if its on a bi-weekly basis? (A different
sheet)
Ash