function openWin(url, height, width) {
    var height = height;
    var width = width;
    var scroll = 1;
    var wleft = (screen.width - width - 20) / 2;
    var wtop = (screen.height - height) / 2;
    window.open(url, 'zoomwindow', 'fullscreen=0,scrollbars=' + scroll + ',height=' + height + ',width=' + width + ',top=' + wtop + ',left=' + wleft + '');
}