* @return
	 */
	public static JPanel panel_border(final JComponent... comp) {
		JPanel panel = new JPanel();
		panel.setLayout(new BorderLayout());
		if (comp.length < 1) {return panel;}
		panel.add(comp[0], BorderLayout.CENTER);
		if (comp.length < 2) {return panel;}
		if (comp[1] != null) {
			panel.add(comp[1], BorderLayout.NORTH);
		}
		if (comp.length < 3) {return panel;}
		if (comp[2] != null) {
			panel.add(comp[2], BorderLayout.SOUTH);
		}
		if (comp.length < 4) {return panel;}
		if (comp[3] != null) {
			panel.add(comp[3], BorderLayout.WEST);
		}
		if (comp.length < 5) {return panel;}
		if (comp[4] != null) {
			panel.add(comp[4], BorderLayout.EAST);
		}
		return panel;
	}