h1_off = new Image();
h1_on= new Image();
h2_off = new Image();
h2_on= new Image();
h3_off = new Image();
h3_on= new Image();

h1_off.src = "images/h1.jpg";
h1_on.src = "images/h1_on.jpg";
h2_off.src = "images/h2.jpg";
h2_on.src = "images/h2_on.jpg";
h3_off.src = "images/h3.jpg";
h3_on.src = "images/h3_on.jpg";

box1_off = new Image();
box1_on= new Image();
box2_off = new Image();
box2_on= new Image();
box3_off = new Image();
box3_on= new Image();

box1_off.src = "images/box1.jpg";
box1_on.src = "images/box1_on.jpg";
box2_off.src = "images/box2.jpg";
box2_on.src = "images/box2_on.jpg";
box3_off.src = "images/box3.jpg";
box3_on.src = "images/box3_on.jpg";

c1_off = new Image();
c1_on= new Image();
c2_off = new Image();
c2_on= new Image();
c3_off = new Image();
c3_on= new Image();

c1_off.src = "images/c1.gif";
c1_on.src = "images/c1_on.gif";
c2_off.src = "images/c2.gif";
c2_on.src = "images/c2_on.gif";
c3_off.src = "images/c3.gif";
c3_on.src = "images/c3_on.gif";

nav1_off = new Image();
nav1_on= new Image();
nav2_off = new Image();
nav2_on= new Image();
nav3_off = new Image();
nav3_on= new Image();
nav4_off = new Image();
nav4_on= new Image();
nav5_off = new Image();
nav5_on= new Image();
nav6_off = new Image();
nav6_on= new Image();

nav1_off.src = "images/nav1.gif";
nav1_on.src = "images/nav1_on.gif";
nav2_off.src = "images/nav2.gif";
nav2_on.src = "images/nav2_on.gif";
nav3_off.src = "images/nav3.gif";
nav3_on.src = "images/nav3_on.gif";
nav4_off.src = "images/nav4.gif";
nav4_on.src = "images/nav4_on.gif";
nav5_off.src = "images/nav5.gif";
nav5_on.src = "images/nav5_on.gif";
nav6_off.src = "images/nav6.gif";
nav6_on.src = "images/nav6_on.gif";

function roll(sname,rname) {
sname.src = rname.src;
}