function randomImage() {var headImages = new Array(
'http://www.nuigalway.ie/womens_studies/images/headers/1_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/6_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/7_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/8_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/16_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/17_web.jpg',
'http://www.nuigalway.ie/womens_studies/images/headers/18_web.jpg'
);
var max = headImages.length;
var num = Math.floor((Math.random() * max));
if (document.getElementById) {
  var headerImageDiv = document.getElementById('logoimage');
  if (headerImageDiv) {
    headerImageDiv.style.backgroundImage = "url(" + headImages[num] + ")";
  }
}
return;
}