button1up=new Image(76,65);
button1up.src="images/b_firma1.jpg";
button1down=new Image(76,65);
button1down.src="images/b_firma.jpg";

button2up=new Image(112,75);
button2up.src="images/b_licytacja1.jpg";
button2down=new Image(112,75);
button2down.src="images/b_licytacja.jpg";

button3up=new Image(98,75);
button3up.src="images/b_regulamin1.jpg";
button3down=new Image(98,75);
button3down.src="images/b_regulamin.jpg";

button4up=new Image(81,75);
button4up.src="images/b_kontakt1.jpg";
button4down=new Image(81,75);
button4down.src="images/b_kontakt.jpg";