else { sound.setIcon(IconManager.getInstance().getIcon("soundoff")); } }
                public void actionPerformed(ActionEvent e) {                    OptionsDialog od = new OptionsDialog(_this);                    Dimension appDimension = od.getSize();                    Dimension screenSize = _this.getSize();                    od.setLocation( (screenSize.width - appDimension.width) / 4,                                   (screenSize.height - appDimension.height) /                                   4);                    od.show();                }