Counting Question

Giganews Newsgroups
Subject: Counting Question
Posted by:  ingalla
Date: Fri, 2 Jun 2006

Can anyone tell me how to count the following.  I have a list containing
date, description and type.

I need to count all of the fields containg "Type A" starting on the 05/06/06
and finishing a week later.

How do i put this into a formula.

Thanks in advance