protected void btnSave_Click(object sender, EventArgs e)
        {
            cnum      = cnumlbl.Text;
            firstName = fnamebox.Text;
            lastName  = lnamebox.Text;
            address   = addressbox.Text;


            city        = citybox.Text;
            province    = provincelist.SelectedValue.ToString();
            postalCode  = pcodebox.Text;
            phonenumber = phonebox.Text;

            emailAddress = emailbox.Text;
            notes        = notebox.Text;


            CsCustomer oldCustomerInfo = new CsCustomer(cnum, firstName, lastName, address, city, province, postalCode, phonenumber, emailAddress, notes, registerDate, levels);

            try
            {
                ConnectionClass.UpdateCustomerDetail(oldCustomerInfo);
                ClientScript.RegisterStartupScript(GetType(), "message", "<script>alert('Updated!');</script>");
            }
            catch
            {
                ClientScript.RegisterStartupScript(GetType(), "message", "<script>alert('Update failed');</script>");
            }

            finally
            {
                DisableTextBoxes(Page);
                provincelist.Enabled = false;
            }
        }