Print out current post taxonomies in an html comment

print-taxonomies-by-post.php

<?php

function get_current_post_taxonomies(){
	global $post;
        $taxonomy_names = get_object_taxonomies( $post );
        ?>
   <!--<tt><pre><?php print_r( $taxonomy_names); ?></tt></pre>-->
   <?php
}

add_action('wp_head','get_current_post_taxonomies');