function openPicture(src, alt, width, height) {
var img = "![" + alt + "](" + src + ")
";
var body = "\n\n\n" + alt + "\n\n\n\n" + img + "\n\n";
var params = "width=" + width + ",height=" + height + ",status=no,toolbar=no,menubar=no,scrollbar=yes";
PictureWindow = open("", "_blank", params);
PictureWindow.document.write(body);
PictureWindow.document.close();
}