diff --git a/documentation/lua/luabot_front.lua b/documentation/lua/luabot_front.lua
index 717a7c08..87e236df 100644
--- a/documentation/lua/luabot_front.lua
+++ b/documentation/lua/luabot_front.lua
@@ -1,40 +1,11 @@
 -- BeeBee, LuaBot Frontend v1.07
 -- qFox, 2 August 2008
 
--- we need iup, so include it here
-local iuplua_open = package.loadlib("iuplua51.dll", "iuplua_open");
-iuplua_open();
-local iupcontrolslua_open = package.loadlib("iupluacontrols51.dll", "iupcontrolslua_open");
-iupcontrolslua_open();
+-- we need iup, so include it here (also takes care of cleaning up dialog when script exits)
+require 'auxlib.lua';
 
 local botVersion = 1; -- check this version when saving/loading. this will change whenever the botsave-file changes.
 
--- callback function to clean up our mess
-function emu.OnClose.iuplua()
-	--iup.Message ("IupMessage", "OnClose!");
-	if(emu and emu.OnCloseIup ~= nil) then
-		emu.OnCloseIup();
-	end
-	iup.Close(); 
-end
-
-local handles = {}; -- this table should hold the handle to all dialogs created in lua
-local dialogs = 0; -- should be incremented PRIOR to creating a new dialog
--- called by the onclose event
-function emu.OnCloseIup()
-	if (handles) then -- just in case the user was "smart" enough to clear this
-		local i = 1;
-		while (handles[i] ~= nil) do -- cycle through all handles, false handles are skipped, nil denotes the end
-			if (handles[i] and handles[i].destroy) then -- check for the existence of what we need
-				-- close this dialog
-				handles[i]:destroy();
-				handles[i] = nil;
-			end;
-			i = i + 1;
-		end;
-	end;
-end;
-
 function createTextareaTab(reftable, tmptable, token, tab, fun, val) -- specific one, at that :)
 	reftable[token] = iup.multiline{title="Contents",expand="YES", border="YES" }; -- ,value=val};
 	tmptable[token] = iup.vbox{iup.label{title="function "..fun.."()\n  local result = no;"},reftable[token],iup.label{title="  return result;\nend;"}};
diff --git a/documentation/lua/smb1_iup.lua b/documentation/lua/smb1_iup.lua
index 9a341cad..bf483f29 100644
--- a/documentation/lua/smb1_iup.lua
+++ b/documentation/lua/smb1_iup.lua
@@ -7,38 +7,8 @@
 -- It also displays the found hitboxes in a output window with iup
 -- Includes a toggle to automatically kill all enemies within 50px range of mario :p
 
--- we need iup, so include it here
-local iuplua_open = package.loadlib("iuplua51.dll", "iuplua_open");
-iuplua_open();
-local iupcontrolslua_open = package.loadlib("iupluacontrols51.dll", "iupcontrolslua_open");
-iupcontrolslua_open();
-
--- callback function to clean up our mess
-function emu.OnClose.iuplua()
-	gui.popup("OnClose!");
-	if(emu and emu.OnCloseIup ~= nil) then
-		emu.OnCloseIup();
-	end
-	iup.Close(); 
-end
-
-local handles = {}; -- this table should hold the handle to all dialogs created in lua
-local dialogs = 0; -- should be incremented PRIOR to creating a new dialog
--- called by the onclose event
-function emu.OnCloseIup()
-	if (handles) then -- just in case the user was "smart" enough to clear this
-		local i = 1;
-		while (handles[i] ~= nil) do -- cycle through all handles, false handles are skipped, nil denotes the end
-			if (handles[i] and handles[i].destroy) then -- check for the existence of what we need
-				-- close this dialog
-				handles[i]:destroy();
-				handles[i] = nil;
-			end;
-			i = i + 1;
-		end;
-	end;
-end;
-
+-- Include our help script to load iup and take care of exit
+require("auxlib.lua");
 
 local running = true;
 local restrainingorder = false;
diff --git a/documentation/lua/tetris.lua b/documentation/lua/tetris.lua
index 640bde3a..49b4af5c 100644
--- a/documentation/lua/tetris.lua
+++ b/documentation/lua/tetris.lua
@@ -2,14 +2,6 @@
 -- Tetris (U) [!].rom
 -- qFox
 
-local function realcount(t) -- accurately count the number of elements of a table, even if they contain nil values. not fast, but accurate.
-	local n = 0;
-	for i,_ in pairs(t) do
-		n = n + 1;
-	end;
-	return n;
-end;
-
 local function getPiece(n) -- returns table with information about this piece
 	-- every piece consists of 4 blocks
 	-- so piece will contain the information about these blocks