display current weeks posts from one category

Hi all,

I am trying to get a page to display the current weeks post for a specific category but am struggling. I can get it to display the posts from the category (CAT=3) and for the current month, but I can not get it to display the posts for the current week from that category.

This works fine for current month

<?php
$current_week = date(‘w’);
$current_month = date(‘m’);
$current_year = date(‘Y’);

query_posts(“cat=3&year=$current_year&monthnum=$current_month”);
?>

I have changed to this and it does not work

query_posts(“cat=3&year=$current_year&monthnum=$current_month$w=$current_week”);

Any help would be great