image1 = new Image();
image1.src = "images/nav_who_02.gif";

image2 = new Image();
image2.src = "images/nav_clearance_01.gif";

image3 = new Image();
image3.src = "images/nav_buildings_02.gif";

image4 = new Image();
image4.src = "images/nav_photo_02.gif";

image5 = new Image();
image5.src = "images/nav_quote_02.gif";