button1 = new Image(100, 27);
button1.src = "graphics/next.jpg";

button2 = new Image(100, 27);
button2.src = "graphics/next_over.jpg";


button3 = new Image(100, 27);
button3.src = "graphics/previous.jpg";

button4 = new Image(100, 27);
button4.src = "graphics/previous_over.jpg";


button5 = new Image(100, 27);
button5.src = "graphics/rewind.jpg";

button6 = new Image(100, 27);
button6.src = "graphics/rewind_over.jpg";

onerror = null;