text: window.ModelWithLanguageMixin = {
  
    getLanguageCode: function(){
      return this.get('document_language') || 'eng';
    },
  
    getLanguageName: function(){
      return dc.language.NAMES[ this.getLanguageCode() ];
    },
  
    getLanguage: function(){
      return { code: this.getLanguageCode(), name: this.getLanguageName() };
    }
  
  };
  