function showImage($contents, $export="png")  {
      global $CFG_GLPI;
      if ($export!="odt" && $export!="odtall") {

         $show_inline = true;

         //test browser (if ie < 9, show img from temp dir instead base64 inline)
         $ua = trim(strtolower($_SERVER["HTTP_USER_AGENT"]));
         $pattern = "/msie\s(\d+)\.0/";
         if(preg_match($pattern,$ua,$arr)){
            $ie_version = $arr[0];
            if (version_compare($ie_version, '9.0') < 0) {
               $show_inline = false;
               $rand=mt_rand();
               $filename_tmp = GLPI_ROOT."/files/_tmp/mreporting_img_$rand.png";
               file_put_contents($filename_tmp, $contents);

               echo "<img src='$filename_tmp' alt='graph' title='graph' />";
            }
         }

         if ($show_inline)
            echo "<img src='data:image/png;base64,".base64_encode($contents)
               ."' alt='graph' title='graph' />";

      }
   }