function get_default_frequency( $item, $nodefaults = false, $type = '' ) {
            $defaults = Array( 'homepage' => 'always', 'blog' => 'daily', 'sitemap' => 'hourly', 'post' => 'weekly', 'archive' => 'monthly', 'author' => 'weekly', 'taxonomies' => 'monthly' );
            static $cache = Array();
            return $this->get_default_values( $defaults, 'freq_', $cache, $item, $nodefaults, $type );
        }