function get_default_priority( $item, $nodefaults = false, $type = '' ) {
            $defaults = Array( 'homepage' => '1.0', 'blog' => '0.9', 'sitemap' => '0.8', 'post' => '0.7', 'archive' => '0.5', 'author' => '0.3', 'taxonomies' => '0.3' );
            static $cache = Array();
            return $this->get_default_values( $defaults, 'prio_', $cache, $item, $nodefaults, $type );
        }