mikeschinkel

<?php
/*
Description: Adds a taxonomy filter in the admin list page for a custom post type.
Written for: http://wordpress.stackexchange.com/posts/582/
By: Mike Schinkel - http://mikeschinkel.com/custom-workpress-plugins
Instructions: Put this code in your theme's functions.php file or inside your own plugin. Edit to suite your post types and taxonomies. Hope this helps...
*/
add_filter('manage_listing_posts_columns', 'add_businesses_column_to_listing_list');
function add_businesses_column_to_listing_list( $posts_columns ) {
	if (!isset($posts_columns['author'])) {