images = new Array(2);

images[0] = "<a href = 'http://www.bridgestravel.com/mango_park_hotel/'><img src='../images2K7/165x270-ads-images/b-mango-park-hotel.jpg' alt='Mango Park Hotel' border='0'></a>";

images[1] = "<a href = 'http://www.bridgestravel.com/phil_tours/explore-bohol.html'><img src='../images2K7/165x170-ads-images/banner-left-big-explore-bohol.jpg' alt='Explore Bohol' border='0'></a>";

index = Math.floor(Math.random() * images.length);

document.write(images[index]);