*
* @param TYPO3backend TYPO3 backend object reference
*/
- public function __construct(TYPO3backend &$backendReference) {
+ public function __construct(TYPO3backend &$backendReference = null) {
$this->backendReference = $backendReference;
list($this->openDocs,) = $GLOBALS['BE_USER']->getModuleData('alt_doc.php','ses');