public ActionResult Mostrar()
        {
            Reportes rep = new Reportes();
            //DataTable agotado = rep.ProductosAgotados();
            //DataTable proximo = rep.ProductosProAgotar();
            //string recordatorios = "";

            /*if (agotado.Rows.Count != 0)
             * {
             *  recordatorios = "agotados";
             * }
             * if (proximo.Rows.Count != 0)
             * {
             *  recordatorios += "proximos";
             *
             * }*/
            Tarea tarea = new Tarea();

            string[]  datos  = new string[3];
            string    tabla  = "";
            DataTable tareas = tarea.Tareas(Session["id"].ToString());

            for (int i = 0; i < tareas.Rows.Count; i++)
            {
                string temp = "<li class='todo-list-item'><div class='checkbox'><input onchange='CambiarEstTarea(this.id)' type='checkbox' value=0 id='" + tareas.Rows[i][0] + "'/><label for='checkbox-1'>" + tareas.Rows[i][1] + " - " + tareas.Rows[i][2] + "</label></div></li>";
                tabla += temp;
            }
            return(Json(tabla, JsonRequestBehavior.AllowGet));
        }