How to determine number Saturdays and Sundays comes between two dates in java script

Question

I have requirement as follows I have two dates i need to find how may saturdays and sundays will come in between
Date1: 02/06/2011
Date2: 02/07/2011
10 days are

Answer 1

Brute force: http://jsfiddle.net/mplungjan/vwNfU/