var bannerImgs = new Array("/images/home/banners/home-banners01.jpg",
  "/images/home/banners/home-banners02.jpg",
  "/images/home/banners/home-banners03.jpg",
  "/images/home/banners/home-banners04.jpg",
  "/images/home/banners/home-banners05.jpg",
  "/images/home/banners/home-banners06.jpg",
  "/images/home/banners/home-banners07.jpg",
  "/images/home/banners/home-banners08.jpg",
  "/images/home/banners/home-banners09.jpg",
  "/images/home/banners/home-banners10.jpg",
  "/images/home/banners/home-banners11.jpg",
  "/images/home/banners/home-banners12.jpg",
  "/images/home/banners/home-banners13.jpg");

var altText = new Array("Nova Scotia",
  "Quebec",
  "Prince Edward Island",
  "Yukon Territory",
  "Alberta",
  "NorthWest Territories",
  "Newfoundland",
  "British Columbia",
  "Nunavut",
  "New Brunswick",
  "Saskatchewan",
  "Manitoba",
  "Ontario");

function getbanner() {
    var idx = Math.floor(Math.random() * bannerImgs.length);
    document.write("<img src=\"" + bannerImgs[idx] + "\" title=\"" + altText[idx] + "\" />");
}