<!--
dir = 'lib/';
bannerImages = new Array;

//Array of banner images
bannerImages[0] = 'banner.gif';
bannerImages[1] = 'banner2.gif';

//Fly generated function called onload (so the placeholder actually exists before altering src)
onload=function() {
  //Generate random number where offset is array length
  var rndNum =Math.floor(Math.random() * bannerImages.length);
 
  //Update placeholder image
  document.images['placeholder'].src = dir + bannerImages[rndNum];
}
-->