function changeimg(id, img) {
 document.getElementById(id).src = img;
}



function random_imglink(){
var myimages=new Array()
//specify random images below. You can have as many as you wish
myimages[1]="/images/career_page/graduate_michael_ward.jpg"
myimages[2]="/images/career_page/graduate_judith.jpg"
myimages[3]="/images/career_page/graduate_deirdre.jpg"


var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<img src="'+myimages[ry]+'" border=0 style="width:19.091em;" alt="Graduate Programme">')
}