function gallery() {
    if (!document.getElementById || !document.getElementById('gallery')) return;
    var thumbs = document.getElementById('gallery').getElementsByTagName('a');
    for (var i = 0; i < thumbs.length; i = i + 1) {
        thumb = thumbs[i];
        thumb.onclick = function() {
            closeWindow();
            openWindow('/popup.php?src=' + this.href,'400','300');
            return false;
        };
    };
};