function get_random() {
  // Make sure that random()*X) has the correct number.
  var ranNum= Math.floor(Math.random()*9);
  return ranNum;
}
var whichImg=get_random();
function show_image() {
  // Make sure that Array(X) has the number of images
  var img=new Array(9)
  img[0]="http://www.pvcc.edu/img/bg/student_7.jpg";
  img[1]="http://www.pvcc.edu/img/bg/student_9.jpg";
  img[2]="http://www.pvcc.edu/img/bg/spr_home_9.jpg";
  img[3]="http://www.pvcc.edu/img/bg/spr_home_11.jpg";
  img[4]="http://www.pvcc.edu/img/bg/spr_home_12.jpg";
  img[5]="http://www.pvcc.edu/img/bg/sum_home_20.jpg";
  img[6]="http://www.pvcc.edu/img/bg/sum_home_21.jpg";
  img[7]="http://www.pvcc.edu/img/bg/spr_home_15.jpg";
  img[8]="http://www.pvcc.edu/img/bg/sum_home_22.jpg";
  // Here the actual displaying of the image is taking place.
  document.write("<div id='righttop' style='background:url(");
  document.write(img[whichImg]);
  document.write(") #ffffff no-repeat;'>");
}