var pic = new Array();
var picNo = 0;

function imagePreload() {
  var i, argLen = imagePreload.arguments.length;
  for (i=0;i<argLen;i++) {
    pic[picNo] = new Image();
    pic[picNo++].src = imagePreload.arguments[i];
  }
}

imagePreload("https://webapps.oru.edu/dra/images/nv_academics_off.gif","https://webapps.oru.edu/dra/images/nv_academics_over.gif","https://webapps.oru.edu/dra/images/nv_admissions_off.gif","https://webapps.oru.edu/dra/images/nv_admissions_over.gif","https://webapps.oru.edu/dra/images/nv_about_off.gif","https://webapps.oru.edu/dra/images/nv_about_over.gif","https://webapps.oru.edu/dra/images/nv_alumni_off.gif","https://webapps.oru.edu/dra/images/nv_alumni_over.gif","https://webapps.oru.edu/dra/images/nv_friends_off.gif","https://webapps.oru.edu/dra/images/nv_friends_over.gif","https://webapps.oru.edu/dra/images/nv_athletics_off.gif","https://webapps.oru.edu/dra/images/nv_athletics_over.gif","https://webapps.oru.edu/dra/images/nv_student_off.gif","https://webapps.oru.edu/dra/images/nv_student_over.gif","https://webapps.oru.edu/dra/images/nv_people_off.gif","https://webapps.oru.edu/dra/images/nv_people_over.gif");