element * @uses $vars['body'] The main content of the page * @uses $vars['sysmessages'] A 2d array of various message registers, passed from system_messages() * @uses $var['forward'] A relative path to forward to after upgrade. Defaults to /admin */ $refresh_url = elgg_http_add_url_query_elements(elgg_get_site_url() . 'upgrade.php', array( 'upgrade' => 'upgrade', 'forward' => elgg_extract('forward', $vars, '/admin') )); $refresh_url = htmlspecialchars($refresh_url); // render content before head so that JavaScript and CSS can be loaded. See #4032 $body = "