File Source for error.php

<?php
/**
* @package linea21.core
* @subpackage config_files
* @author linea21 <info@linea21.com>
* @version $id SVN
* @access public
* @license http://opensource.org/licenses/gpl-3.0.html
*/
ob_start();
session_start();
include_once("../lib/functions_auth.php");
include_once("../config/define.php");
include_once('../languages/'.U_L.'/lang_common.' . CHARSET . '.php');
$backlink= CURRENT_APP_URL ."index.php?rub=".$GLOBALS['links'][U_L]['search']['linkvalue'];
echo '<?xml version="1.0" encoding="'.CHARSET.'" xml:lang="'. U_L .'">'.END_LINE;
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo U_L; ?>">
<head>
<meta HTTP-EQUIV="Refresh" CONTENT="<?php echo CONFIRM_REFRESH; ?>;URL=<?php echo $backlink; ?>">
<meta http-equiv="content-language" content="<?php echo U_L; ?>" />
<meta http-equiv="content-type" content="text/html; charset=<?php echo CHARSET; ?>" />
<title><?php echo _t('header','title'); ?></title>
<link type="text/css" rel="StyleSheet" href="<?php echo THEME_ADMIN_PATH; ?>css/actionconfirm.css" />
</head>
<body>
<h1 class="error"><?php echo _t('divers', '404'); ?></h1>
</body>
</html>
<?php
ob_end_flush();
?>

Source for file error.php