<!--

nav1 = new Image();
nav1.src = "images/b1_on.jpg";
nav2 = new Image();
nav2.src = "images/b2_on.jpg";
nav3 = new Image();
nav3.src = "images/b3_on.jpg";
nav4 = new Image();
nav4.src = "images/b4_on.jpg";
nav5 = new Image();
nav5.src = "images/b5_on.jpg";

// -->