diff --git a/wordclock.lua b/wordclock.lua
index b2adaf1..6a35939 100755
--- a/wordclock.lua
+++ b/wordclock.lua
@@ -1,10 +1,11 @@
 -- Revese engeeniered code of display_wc_ger.c by Vlad Tepesch
 -- See https://www.mikrocontroller.net/articles/Word_Clock_Variante_1#Download
 
--- TODO: Also add the twenty as return value!
-
--- Return the leds to use
--- the granuality is 5 minutes
+-- @fn display_timestat
+-- Return the leds to use the granuality is 5 minutes
+-- @param hours the current hours (0-23)
+-- @param minutes the current minute (0-59)
+-- @param longmode (optional parameter) 0: no long mode, 1: long mode (itis will be set)
 function display_timestat(hours, minutes, longmode)
  if (longmode == nil) then
    longmode=0