public JsonResult AddBackgroundToFrame(BookModel frameDescriptionArray)
        {
            string statusMsg  = string.Empty;
            var    targetFile = this.GetTargetFile();

            if (!String.IsNullOrEmpty(targetFile))
            {
                statusMsg = aBookRepository.AddBackgroundToContent(frameDescriptionArray, targetFile);
            }
            return(Json(statusMsg));
        }