button1up=new Image(135,41);
button1up.src="images/gfx01.jpg";
button1down=new Image(135,41);
button1down.src="images/gfx011.jpg";

button2up=new Image(135,41);
button2up.src="images/gfx02.jpg";
button2down=new Image(135,41);
button2down.src="images/gfx021.jpg";

button3up=new Image(135,41);
button3up.src="images/gfx03.jpg";
button3down=new Image(135,41);
button3down.src="images/gfx031.jpg";

button4up=new Image(135,41);
button4up.src="images/gfx04.jpg";
button4down=new Image(135,41);
button4down.src="images/gfx041.jpg";