+;;;###autoload
+(defun toggle-rot13-mode ()
+ "Toggle the use of rot 13 encoding for the current window."
+ (interactive)
+ (if (eq (window-display-table (selected-window)) rot13-display-table)
+ (set-window-display-table (selected-window) nil)
+ (if (null (window-display-table (selected-window)))
+ (set-window-display-table (selected-window) rot13-display-table))))
+