diff --git a/EGnLuaAux.h b/EGnLuaAux.h
index b7d065f..ff86e89 100644
--- a/EGnLuaAux.h
+++ b/EGnLuaAux.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2015-2015
+//  EgalTech 2015-2020
 //----------------------------------------------------------------------------
-// File : EGnLuaAux.h       Data : 21.03.15        Versione : 1.6c6
+// File : EGnLuaAux.h       Data : 17.04.20        Versione : 2.2d3
 // Contenuto : Funzioni per gestione parametri generali con LUA.
 //
 //
@@ -551,6 +551,17 @@ LuaResetGlobVar( lua_State* L, const std::string& sVar)
    }
 }
 
+//----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+inline bool
+LuaChangeNameGlobVar( lua_State* L, const std::string& sOldVar, const std::string& sNewVar)
+{
+   int nType = lua_getglobal( L, sOldVar.c_str()) ;
+   if ( nType == LUA_TNONE  ||  nType == LUA_TNIL)
+      return false ;
+   lua_setglobal( L, sNewVar.c_str()) ;
+   return true ;
+}
 
 //----------------------------------------------------------------------------
 //----------------------------------------------------------------------------