public ActionResult _ReturnModelImageJson(int id)
        {
            var mdl = _svc.GetModel(id).Image;

            if (mdl == null)
            {
                return(Json(new{ base64image = Convert.ToBase64String(System.IO.File.ReadAllBytes(Server.MapPath("~/Content/site/img/noimage.gif"))),
                                 type = "image/gif" }, JsonRequestBehavior.AllowGet));
            }
            return(_documentController.ReturnJsonDocument(mdl));
        }