/**
  * Prepares Fileupload form and returns it.
  * @return ilPropertyFormGUI
  */
 public function getFileUploadForm()
 {
     /**
      * @var $lng ilLanguage
      */
     global $lng;
     $form = new ilPropertyFormGUI();
     $file_input = new ilFileInputGUI();
     $file_input->setPostVar('file_to_upload');
     $file_input->setTitle($lng->txt('upload'));
     $form->addItem($file_input);
     $form->addCommandButton('UploadFile-uploadFile', $lng->txt('submit'));
     $form->setTarget('_blank');
     return $form;
 }