Use categories and tags on media

media_cat_tags.php

<?php
/*
Plugin Name: Media Categories and Tags
Description: Plugin adds the ability to use categories and tags on media
Version: 1.0
Author: Shelley Howard
Author URI: http://shelleyhoward.com
*/
 
// apply categories to media attachments
function sh_add_categories_to_attachments() {
	register_taxonomy_for_object_type( 'category', 'attachment' );
}
add_action( 'init' , 'sh_add_categories_to_attachments' );
 
// apply tags to media attachments
function sh_add_tags_to_attachments() {
	register_taxonomy_for_object_type( 'post_tag', 'attachment' );
}
add_action( 'init' , 'sh_add_tags_to_attachments' );
 
?>