private JComboBox getJComboBox1() {
		if (jComboBox1 == null) {
			jComboBox1 = new JComboBox();
			jComboBox1.setModel(new DefaultComboBoxModel(new Object[] { "GB2312", "UTF-8","ASCII" }));
			jComboBox1.setDoubleBuffered(false);
			jComboBox1.setBorder(null);
		}
		return jComboBox1;
	}