(new Image(156, 25)).src = 'images/over_button_1.jpg';
(new Image(156, 31)).src = 'images/over_button_2.jpg';
(new Image(156, 27)).src = 'images/over_button_3.jpg';
(new Image(156, 26)).src = 'images/over_button_4.jpg';
(new Image(156, 29)).src = 'images/over_button_5.jpg';
(new Image(156, 27)).src = 'images/over_button_6.jpg';
(new Image(156, 28)).src = 'images/over_button_7.jpg';
(new Image(156, 28)).src = 'images/over_button_8.jpg';
(new Image(156, 28)).src = 'images/over_button_9.jpg';
(new Image(156, 25)).src = 'images/over_button_10.jpg';
(new Image(156, 25)).src = 'images/over_button_11.jpg';