function randomImage() {var headImages = new Array(
'http://www.nuigalway.ie/images/galway/1000/gaf_at_night.jpg',
'http://www.nuigalway.ie/images/galway/1000/gaf.jpg',
'http://www.nuigalway.ie/images/staff/1000/inside_artsmill.jpg',
'http://www.nuigalway.ie/images/buildings/1000/inside_quad_red.jpg',
'http://www.nuigalway.ie/images/buildings/1000/it_at_night.jpg',
'http://www.nuigalway.ie/images/buildings/1000/cairnes.jpg',
'http://www.nuigalway.ie/images/buildings/1000/art_mill.jpg',
'http://www.nuigalway.ie/images/buildings/1000/inside_quad_arch.jpg',
'http://www.nuigalway.ie/images/buildings/1000/inside_quad_grass.jpg',
'http://www.nuigalway.ie/images/buildings/1000/civil_eng.jpg',
'http://www.nuigalway.ie/images/buildings/1000/it_at_dusk.jpg',
'http://www.nuigalway.ie/images/buildings/1000/front_mri.jpg',
'http://www.nuigalway.ie/images/buildings/1000/inside_quad.jpg',
'http://www.nuigalway.ie/images/buildings/1000/walking_by_mri.jpg',
'http://www.nuigalway.ie/images/buildings/1000/front_mri_ppl.jpg',
'http://www.nuigalway.ie/images/buildings/1000/top_it.jpg',
'http://www.nuigalway.ie/images/buildings/1000/front_quad.jpg',
'http://www.nuigalway.ie/images/buildings/1000/walkway.jpg',
'http://www.nuigalway.ie/images/buildings/1000/quad_tower.jpg',
'http://www.nuigalway.ie/images/buildings/1000/close_view_clock_tower.jpg',
'http://www.nuigalway.ie/images/buildings/1000/yoke.jpg',
'http://www.nuigalway.ie/images/creative/1000/cairnes.jpg',
'http://www.nuigalway.ie/images/creative/1000/it_close.jpg',
'http://www.nuigalway.ie/images/creative/1000/tree_sun_cairnes.jpg',
'http://www.nuigalway.ie/images/creative/1000/study.jpg',
'http://www.nuigalway.ie/images/creative/1000/boat_corrib.jpg',
'http://www.nuigalway.ie/images/creative/1000/walkway_bikes.jpg',
'http://www.nuigalway.ie/images/creative/1000/cairnes_wood.jpg',
'http://www.nuigalway.ie/images/creative/1000/trees_sky.jpg',
'http://www.nuigalway.ie/images/creative/1000/trees_artsmill.jpg',
'http://www.nuigalway.ie/images/creative/1000/inside_it.jpg',
'http://www.nuigalway.ie/images/creative/1000/corrib_reflection.jpg',
'http://www.nuigalway.ie/images/creative/1000/swan_corrib.jpg',
'http://www.nuigalway.ie/images/students/1000/student_chatting_in_the_sun_green.jpg',
'http://www.nuigalway.ie/images/students/1000/inside_quad_red.jpg',
'http://www.nuigalway.ie/images/students/1000/students_in_the_sun_green.jpg',
'http://www.nuigalway.ie/images/students/1000/it.jpg',
'http://www.nuigalway.ie/images/students/1000/it_at_night.jpg',
'http://www.nuigalway.ie/images/students/1000/cairnes.jpg',
'http://www.nuigalway.ie/images/students/1000/it_close.jpg',
'http://www.nuigalway.ie/images/students/1000/art_mill.jpg',
'http://www.nuigalway.ie/images/students/1000/on_campus_green.jpg',
'http://www.nuigalway.ie/images/students/1000/inside_quad_arch.jpg',
'http://www.nuigalway.ie/images/students/1000/student_studying_in_the_sun_green.jpg',
'http://www.nuigalway.ie/images/students/1000/studing_library.jpg',
'http://www.nuigalway.ie/images/students/1000/students_green.jpg',
'http://www.nuigalway.ie/images/students/1000/study.jpg',
'http://www.nuigalway.ie/images/students/1000/looking_for.jpg',
'http://www.nuigalway.ie/images/students/1000/students_chatting_studying.jpg',
'http://www.nuigalway.ie/images/students/1000/civil_eng.jpg',
'http://www.nuigalway.ie/images/students/1000/outside_sportscentre.jpg',
'http://www.nuigalway.ie/images/students/1000/corrib_village.jpg',
'http://www.nuigalway.ie/images/students/1000/it_at_dusk.jpg',
'http://www.nuigalway.ie/images/students/1000/inside_quad_gradd.jpg',
'http://www.nuigalway.ie/images/students/1000/front_mri.jpg',
'http://www.nuigalway.ie/images/students/1000/student_activity.jpg',
'http://www.nuigalway.ie/images/students/1000/boat_corrib.jpg',
'http://www.nuigalway.ie/images/students/1000/walkway_bikes.jpg',
'http://www.nuigalway.ie/images/students/1000/inside_quad.jpg',
'http://www.nuigalway.ie/images/students/1000/inbetween.jpg',
'http://www.nuigalway.ie/images/students/1000/walking_to_nuigalway_via_mri.jpg',
'http://www.nuigalway.ie/images/students/1000/walking_by_mri.jpg',
'http://www.nuigalway.ie/images/students/1000/front_mri_ppl.jpg',
'http://www.nuigalway.ie/images/students/1000/language_lab.jpg',
'http://www.nuigalway.ie/images/students/1000/on_campus.jpg',
'http://www.nuigalway.ie/images/students/1000/front_quad.jpg',
'http://www.nuigalway.ie/images/students/1000/walkway.jpg',
'http://www.nuigalway.ie/images/students/1000/cairnes_wood.jpg',
'http://www.nuigalway.ie/images/students/1000/student_walking_to_lectures.jpg',
'http://www.nuigalway.ie/images/students/1000/close_view_clock_tower.jpg',
'http://www.nuigalway.ie/images/students/1000/trees_sky.jpg',
'http://www.nuigalway.ie/images/students/1000/inside_it.jpg',
'http://www.nuigalway.ie/images/students/1000/corrib_reflection.jpg',
'http://www.nuigalway.ie/images/students/1000/library.jpg',
'http://www.nuigalway.ie/images/students/1000/swan_corrib.jpg',
'http://www.nuigalway.ie/images/students/1000/yoke.jpg',
'http://www.nuigalway.ie/images/buildings/1000/inside_quad.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;
}