function displayRandomImage() {
    var images = new Array();
    var path = "images/banners/";

    images[0] = path + "feature-banner1.gif";
    images[1] = path + "feature-banner2.jpg";
    images[2] = path + "feature-banner3.gif";

    var count = images.length;
    var random = Math.round(Math.random() * (count - 1));

    document.write('<img src="' + images[random] + '"');
}