   :group 'org-export-reveal
   :type 'boolean)
 
+(defcustom org-reveal-slide-number t
+  "Reveal showing slide numbers."
+  :group 'org-export-reveal
+  :type 'boolean)
+
 (defcustom org-reveal-keyboard t
   "Reveal use keyboard navigation."
   :group 'org-export-reveal

                  (org-export-last-sibling-p headline info))
             ;; Last head 1. Stop all slides.
             "</section>")))))))
  
(defgroup org-export-reveal nil
  "Options for exporting Orgmode files to reveal.js HTML pressentations."
  :tag "Org Export reveal"

        			progress: %s,
        			history: %s,
        			center: %s,
                                slideNumber: %s,
        			rollingLinks: %s,
        			keyboard: %s,
        			overview: %s,
