public function overlay(
        $title,
        $message,
        $submitbutton = false,
        $allowText = 'Save',
        $allowType = 'success',
        $dismissText = 'Close',
        $dismissType = 'default'
    ) {
        $this->message($message);
        $this->session->create('flash_notification.title', $title);
        $this->session->create('flash_notification.overlay', true);
        $this->session->create('flash_notification.dismissText', $dismissText);
        $this->session->create('flash_notification.dismissType', $dismissType);
        $this->session->create('flash_notification.allowText', $allowText);
        $this->session->create('flash_notification.allowType', $allowType);
        $this->session->create('flash_notification.submitButton', $submitbutton);
    }