image1 = new Image();
image1.src = "img/nav1a.gif";
image2 = new Image();
image2.src = "img/nav2a.gif";
image3 = new Image();
image3.src = "img/nav3a.gif";
image4 = new Image();
image4.src = "img/nav4a.gif";
image5 = new Image();
image5.src = "img/nav5a.gif";
image6 = new Image();
image6.src = "img/nav6a.gif";
image7 = new Image();
image7.src = "img/nav7a.gif";
image8 = new Image();
image8.src = "img/nav8a.gif";
image9 = new Image();
image9.src = "img/nav9a.gif";
image10 = new Image();
image10.src = "img/nav10a.gif";