public IMenuOutputFormatter MenuOutputFormatter(string outputChoice)
        {
            IMenuOutputFormatter outputFormatter = null;
               switch (outputChoice)
               {
               case "xml":
                   outputFormatter = new clsMenuOutputFormatterXml();
                   break;
               case "txt":
                   outputFormatter = new clsOutputFormatterPlainText();
                   break;
               case "html":
                   outputFormatter = new clsMenuOutputFormatterHtml();
                   break;
               default:
                   break;
               }

               return outputFormatter;
        }
        public IMenuOutputFormatter MenuOutputFormatter(string outputChoice)
        {
            IMenuOutputFormatter outputFormatter = null;

            switch (outputChoice)
            {
            case "xml":
                outputFormatter = new clsMenuOutputFormatterXml();
                break;

            case "txt":
                outputFormatter = new clsOutputFormatterPlainText();
                break;

            case "html":
                outputFormatter = new clsMenuOutputFormatterHtml();
                break;

            default:
                break;
            }

            return(outputFormatter);
        }