private void addNewReview(Product product, JComponent frame) {
		logger.fine("running addNewReview()");

		// erstelle neuen Review
		review = new Review();
		review.setProduct(product);
		review.setDate(new Date(System.currentTimeMillis()));

		this.customer.setText("Guest");
		this.summary.setText("");
		this.content.setText("");
		this.rating.setText("");
		this.saveButton.setVisible(true);
	}