if (document.images) {

var hnav1 = new Image();
hnav1.src = "/rose/spaceshow/cosmic/images/nav_trailer_anim.gif";
var hnav1on = new Image();
hnav1on.src = "/rose/spaceshow/cosmic/images/nav_trailer_anim_over.gif";

var hnav2 = new Image();
hnav2.src = "/rose/spaceshow/cosmic/images/nav_picture_gallery.gif";
var hnav2on = new Image();
hnav2on.src = "/rose/spaceshow/cosmic/images/nav_picture_gallery_over.gif";

var hnav3 = new Image();
hnav3.src = "/rose/spaceshow/cosmic/images/nav_behind.gif";
var hnav3on = new Image();
hnav3on.src = "/rose/spaceshow/cosmic/images/nav_behind_over.gif";

var hnav4 = new Image();
hnav4.src = "/rose/spaceshow/cosmic/images/nav_narrator.gif";
var hnav4on = new Image();
hnav4on.src = "/rose/spaceshow/cosmic/images/nav_narrator_over.gif";

var hnav5 = new Image();
hnav5.src = "/rose/spaceshow/cosmic/images/nav_educator.gif";
var hnav5on = new Image();
hnav5on.src = "/rose/spaceshow/cosmic/images/nav_educator_over.gif";

var hnav6 = new Image();
hnav6.src = "/rose/spaceshow/cosmic/images/nav_resources.gif";
var hnav6on = new Image();
hnav6on.src = "/rose/spaceshow/cosmic/images/nav_resources_over.gif";

var hnav7 = new Image();
hnav7.src = "/rose/spaceshow/cosmic/images/nav_nasa_interview.gif";
var hnav7on = new Image();
hnav7on.src = "/rose/spaceshow/cosmic/images/nav_nasa_interview_over.gif";

var tickets = new Image();
tickets.src = "/rose/spaceshow/cosmic/images/nav_buy_tickets.gif";
var ticketson = new Image();
ticketson.src = "/rose/spaceshow/cosmic/images/nav_buy_tickets_over.gif";

var arrow = new Image();
arrow.src = "/rose/spaceshow/cosmic/images/go_to_arrow.gif";
var arrowon = new Image();
arrowon.src = "/rose/spaceshow/cosmic/images/go_to_arrow_over.gif";

var shop = new Image();
shop.src = "/rose/spaceshow/cosmic/images/nav_shop.gif";
var shopon = new Image();
shopon.src = "/rose/spaceshow/cosmic/images/nav_shop_over.gif";

var snav1 = new Image();
snav1.src = "/rose/spaceshow/cosmic/images/nav_trailer.gif";
var snav1on = new Image();
snav1on.src = "/rose/spaceshow/cosmic/images/nav_trailer_over.gif";


var tick1 = new Image();
tick1.src = "/common/content/images/but_buytickets_off.gif";
var tick1on = new Image();
tick1on.src = "/common/content/images/but_buytickets_on.gif";
}


function imgon(name)  {
if (document.images){
document[name].src = eval(name + "on.src");}
}

function imgoff(name)  {
if (document.images){
document[name].src = eval(name + ".src");}
}