ecpt_fbt_add_taxonomy_filters

    // registers each of the taxonomy filter drop downs
    function ecpt_fbt_add_taxonomy_filters() {
        global $typenow;            // the current post type
        $taxonomies = get_taxonomies('','objects');
        foreach($taxonomies as $taxName => $tax) {
          if(in_array($typenow,$tax->object_type) && $taxName != 'category' && $taxName != 'tags') {
            $terms = get_terms($taxName);
            if(count($terms) > 0) {
              //Check if hierarchical - if so build hierarchical drop-down
              if($tax->hierarchical) {
                $args = array(
                          'show_option_all'    => 'All '.$tax->labels->name,
                          'show_option_none'   => 'Select '.$tax->labels->name,
                          'show_count'         => 1,
                          'hide_empty'         => 0,
                          'echo'               => 1,
                          'hierarchical'       => 1,
                          'depth'              => 3,
                          'name'               => $tax->rewrite['slug'],
                          'id'                 => $tax->rewrite['slug'],
                          'class'              => 'postform',
                          'depth'              => 0,
                          'tab_index'          => 0,
                          'taxonomy'           => $taxName,
                          'hide_if_empty'      => false);
                      $args['walker'] = new Walker_FilterByTaxonomy;
                    wp_dropdown_categories($args);
             } else {
                echo "<select name='".$tax->rewrite['slug']."' id='".$tax->rewrite['slug']."' class='postform'>";
                echo "<option value=''>Show All ".$tax->labels->name."</option>";
                foreach ($terms as $term) {
                      echo '<option value="' . $term->slug . '"', $_GET[$taxName] == $term->slug ? ' selected="selected"' : '','>' . $term->name .' (' . $term->count .')</option>';
                    }
                echo "</select>";
            }
              }
          }
        }
    }
    add_action( 'restrict_manage_posts', 'ecpt_fbt_add_taxonomy_filters', 100 );

    /**
     * Create HTML dropdown list of Categories.
     *
     * @package WordPress
     * @since 2.1.0
     * @uses Walker
     */
    class Walker_FilterByTaxonomy extends Walker {
        var $tree_type = 'category';
        var $db_fields = array ('parent' => 'parent', 'id' => 'term_id');
        function start_el(&$output, $category, $depth, $args) {
          $args['selected'] = get_query_var( $args['taxonomy'] );
            $pad = str_repeat('&nbsp;', $depth * 3);

            $cat_name = apply_filters('list_cats', $category->name, $category);
            $output .= "\t<option class=\"level-$depth\" value=\"".$category->slug."\"";
            if ( $category->slug == $args['selected'] )
              $output .= ' selected="selected"';
            $output .= '>';
            $output .= $pad.$cat_name;
            if ( $args['show_count'] )
                $output .= '&nbsp;&nbsp;('. $category->count .')';
            if ( $args['show_last_update'] ) {
                $format = 'Y-m-d';
                $output .= '&nbsp;&nbsp;' . gmdate($format, $category->last_update_timestamp);
            }
            $output .= "</option>\n";
        }

    }