public static function getTumb($page, $attr = array())
 {
     if (!is_array($attr) && count($attr) == 0) {
         return "";
     }
     $imageExt = new ImageExt($page);
     $imageExtImage = new ImageExtImage($imageExt);
     $imageExtImage->parse(ImageExtImage::TAG_IMAGE, array(), $attr);
     $imageExtImage->parseFileAttributes();
     $imageExtImage->optimizeOutput();
     if ($imageExt->isDebug()) {
         return $imageExtImage->getDebug();
     } else {
         $imageExtImage->generate();
         return $imageExtImage->toHTML();
     }
 }