addLoadEvent(prepareLinks)

function prepareLinks() {
    if (!document.getElementById) return false;
    if (!document.getElementsByTagName) return false;
    if (!document.getElementById("thumbNails")) return false;
    photoDiv = document.getElementById("thumbNails")
    links = photoDiv.getElementsByTagName("a");

    for (var i = 0; i < links.length; i++) {
        links[i].onclick = function() {
            showPhoto(this.href, this.title); return false;
        }
    }
}
function animatePictures() {
    if (!document.getElementById("BigImage")) return false;
    if (!document.getElementById) return false;
    if (!document.getElementsByTagName) return false;
    if (!document.getElementById("thumbNails")) return false;
    photoDiv = document.getElementById("thumbNails")
    links = photoDiv.getElementsByTagName("a");
    var linkNum = Math.floor(Math.random() * 8);
    pictureToShow = links[linkNum].href;

    if (pictureToShow.substr(pictureToShow.lastIndexOf("_") + 1, 1) != "0") {
        document.getElementById("BigImage").src = pictureToShow;
    }
    animation = setTimeout("animatePictures()", 4000)
}
function showPhoto(pic, altText) {
    image = document.getElementById("BigImage");
    image.src = pic;
    image.alt = altText;
}