public void actionPerformed(ActionEvent e) {
				String s = navigator.getHomeDirectory();
				if (Locale.getDefault().equals(Locale.PRC)) {
					s += "cn/manual/keyboard.cml";
				}
				else if (Locale.getDefault().equals(Locale.TAIWAN)) {
					s += "tw/manual/keyboard.cml";
				}
				else {
					s += "tutorial/keyboard.cml";
				}
				navigator.visitLocation(s);
			}