diff --git a/api.lua b/api.lua
index 71e05e4..40f55a4 100644
--- a/api.lua
+++ b/api.lua
@@ -5,8 +5,8 @@ local function clone_table() end
 Scoreboard = {
     -- player to show the scoreboard to
     player_name = "",
-    -- id of the hud of the player
-    hud_id = {bg_hud_id = nil, text_hud_id = nil},
+    -- ids of the hud of the player
+    hud_id = {},
     -- because the scoreboard is composed by a background and a text we need to
     -- define the two HUD to use later
     background_def = {
@@ -72,7 +72,6 @@ function Scoreboard:new(def)
 
     if def.player then
         scoreboard.player_name = def.player
-		    scoreboard.hud_id = {bg_hud_id = nil, text_hud_id = nil}
     end
 
     if def.sub_txt_elems ~= nil then
@@ -81,7 +80,6 @@ function Scoreboard:new(def)
         scoreboard[name] = clone_table(scoreboard.text_def)
         scoreboard[name].position = elem.position
         scoreboard[name].text = elem.text
-        scoreboard.hud_id[name] = nil
       end
     end
 
@@ -91,7 +89,6 @@ function Scoreboard:new(def)
         scoreboard[name] = clone_table(scoreboard.background_def)
         scoreboard[name].position = elem.position
         scoreboard[name].text = elem.text
-        scoreboard.hud_id[name] = nil
       end
     end
 
@@ -110,6 +107,8 @@ function Scoreboard:show()
   for _, name in pairs(self.sub_txt_elems) do
     self.hud_id[name] = player:hud_add(self[name])
   end
+  -- check per testare
+  minetest.chat_send_player(self.player_name, minetest.serialize(self.hud_id))
 end
 
 
@@ -122,10 +121,49 @@ function Scoreboard:hide()
       player:hud_remove(self.hud_id[k])
     end
 	end
+  -- check per testare
+  minetest.chat_send_player(self.player_name, minetest.serialize(self.hud_id))
 end
 
 
 
+function Scoreboard:update(def, txt_elems, img_elems)
+
+  if def ~= nil then
+    for k, v in pairs(def) do
+      self[k] = v
+    end
+  end
+
+  if txt_elems ~= nil then
+
+    for elem, _ in pairs(txt_elems) do
+      for k, v in pairs(txt_elems[elem]) do
+        self[elem][k] = v
+      end
+    end
+
+  end
+
+end
+
+
+
+
+----------------------------------------------
+-----------------GETTERS----------------------
+----------------------------------------------
+
+function scoreboard_lib.get_scoreboard(p_name)
+  return scoreboard_lib.scoreboards[p_name]
+end
+
+
+
+----------------------------------------------
+---------------FUNZIONI LOCALI----------------
+----------------------------------------------
+
 -- code from => http://lua-users.org/wiki/CopyTable
 function clone_table(orig)
   local orig_type = type(orig)