public function includeFile($templateFilename) {

        /* @deprecated use $this when accessing assigned variables */

        $tpl = $this;

        eval('?>' .
            file_get_contents(Application::getInstance()->getRootPath() .
                (defined('TPL_PATH') ? str_replace('/', DIRECTORY_SEPARATOR, ltrim(TPL_PATH, '/')) : '') .
                $templateFilename
            ));

    }