private JButton createConfirmButton() {
		JButton b = new JButton("Confirm");
		b.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				try {
					submitPurchaseButtonClicked();
				} catch (ParseException e1) {
					e1.printStackTrace();
				}
			}
		});
		b.setEnabled(false);

		return b;
	}