<!--- 

if (document.images) {

var img1 = new Image();
img1.src = "/exhibitions/dinosaurs/images/comingsoon/home_but_off.gif"
var img1on = new Image();
img1on.src = "/exhibitions/dinosaurs/images/comingsoon/home_but_on.gif"

var img2 = new Image();
img2.src = "/exhibitions/dinosaurs/images/comingsoon/home2_but_off.gif"
var img2on = new Image();
img2on.src = "/exhibitions/dinosaurs/images/comingsoon/home2_but_on.gif"

var img3 = new Image();
img3.src = "/exhibitions/dinosaurs/images/comingsoon/newdisc_but_off.gif"
var img3on = new Image();
img3on.src = "/exhibitions/dinosaurs/images/comingsoon/newdisc_but_on.gif"

var img4 = new Image();
img4.src = "/exhibitions/dinosaurs/images/comingsoon/behindscenes_but_off.gif"
var img4on = new Image();
img4on.src = "/exhibitions/dinosaurs/images/comingsoon/behindscenes_but_on.gif"

var img5 = new Image();
img5.src = "/exhibitions/dinosaurs/images/comingsoon/signup_but_off.gif"
var img5on = new Image();
img5on.src = "/exhibitions/dinosaurs/images/comingsoon/signup_but_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");}
} 


//--->