code: function ( TextId ) {
  				if ( ! _Translations [ TextId ] ) {
  					console.log ( 'Invalid TextId : \'' + TextId + '\'.');
  					return '???';
  				}
  				var UserLanguageEn = 'en';
  				if ( _Translations [ TextId ] [ _UserLanguage ] ) { 
  					return _Translations [ TextId ] [ _UserLanguage ];
  				}
  				else if ( _Translations [ TextId ] [ UserLanguageEn ] ) {
  					return _Translations [ TextId ] [ UserLanguageEn ];
  				}
  				else {
  					return '???';
  				}
  			}
docs: /* --- public methods --- /*
  --- getText ( TextId ) method ---
  
  This method gives the text identified by TextId in the current user language.
  
  Parameters :
  - TextId : a unique identifier for the asked text
  
  Return :
  - the text identified by TextId in the current user language when found
  - the text identified by TextId in 'en' when not found in the current user language
  - '???' when the text identified by TextId is not found in the current user language or 'en'
  - '???' when TextId is not found