protected void cfmSubmit_Click(object sender, EventArgs e)
        {
            string           userID = (string)Request.QueryString["id"];
            List <int>       suggestedCourseIDList = (List <int>)Session["suggestedCourseIDList"];
            Course_elearnDAO ceDAO = new Course_elearnDAO();

            //delete all existing suggested courses
            ceDAO.deleteSuggestedCoursesByUserID(userID);

            //insert new suggested courses
            foreach (int id in suggestedCourseIDList)
            {
                ceDAO.insertSuggestedCourses(id, userID);
            }
            //to change redirect path
            Response.Redirect("progressReports.aspx?id=" + userID);
        }