function randomSmallImage() { 
var smallImages = new Array(
'http://www.nuigalway.ie/images/students/150/9.jpg',
'http://www.nuigalway.ie/images/students/150/7b.jpg',
'http://www.nuigalway.ie/images/students/150/7a.jpg',
'http://www.nuigalway.ie/images/students/150/1.jpg',
'http://www.nuigalway.ie/images/students/150/22.jpg',
'http://www.nuigalway.ie/images/students/150/46.jpg',
'http://www.nuigalway.ie/images/students/150/13.jpg',
'http://www.nuigalway.ie/images/students/150/86.jpg',
'http://www.nuigalway.ie/images/students/150/2.jpg',
'http://www.nuigalway.ie/images/students/150/21.jpg',
'http://www.nuigalway.ie/images/students/150/90.jpg',
'http://www.nuigalway.ie/images/students/150/38.jpg',
'http://www.nuigalway.ie/images/students/150/3.jpg',
'http://www.nuigalway.ie/images/students/150/15.jpg',
'http://www.nuigalway.ie/images/students/150/39.jpg',
'http://www.nuigalway.ie/images/students/150/40.jpg',
'http://www.nuigalway.ie/images/students/150/7.jpg',
'http://www.nuigalway.ie/images/students/150/44.jpg',
'http://www.nuigalway.ie/images/students/150/9a.jpg',
'http://www.nuigalway.ie/images/staff/150/27.jpg',
'http://www.nuigalway.ie/images/staff/150/31.jpg',
'http://www.nuigalway.ie/images/staff/150/37.jpg',
'http://www.nuigalway.ie/images/students/150/4.jpg'
);
var max = smallImages.length -1;
var num = Math.floor((Math.random() * max));
if (document.getElementById) {
  var smallImageDiv = document.getElementById('rightbarimage');
  if (smallImageDiv) {
    smallImageDiv.style.backgroundImage = "url(" + smallImages[num] + ")";
  }
}
return;
}