function imagebox(url) {

    if (window.wait) {
        window.clearInterval(wait);
        window.wait = null;
    }

    window.imagecx = null;
    window.imagecy = null;

    var head = document.getElementsByTagName('HEAD')[0];
    var scr  = document.createElement('SCRIPT');
        scr.type = 'text/javascript';
        scr.src  = '/js/getimagesize.php?q=' + url;

    head.appendChild(scr);

    wait = window.setInterval(
        function() {
            if (window.imagecx && window.imagecy) {
                window.clearInterval(wait);
                window.wait = null;
                window.open('/image.php?q=' + url, '', 'width=' + window.imagecx + ',height=' + window.imagecy + ',scrollbars=no,resizable=no,toolbar=no');
            }
        }, 5);
}