public function bayar()
    {
        $txt_bayar = $_POST[\'txt_bayar\'];
        $nim = $_POST[\'nim\'];
        $total = $this->cart->total();
        $sisa = $txt_bayar - $total;
        if ($sisa >=0) {
            //$this->session->set_flashdata(\'message\', \'Transaksi Selesai\');
            //redirect(base_url().\'admin/Transaksi\');
			//$result['status'] = 1;
            echo json_encode($hasil);
        }
}