function payment_method_paypal_conf(){
if(arg(2) && is_numeric(arg(2))){
    $uid = arg(2);
  }
  else if(arg(3) && is_numeric(arg(3))){
    $uid = arg(3);
  }
  else{
    global $user;
    $uid = $user->uid;
  }

  $check = db_select('afl_usr_payment_methods' , 'method')
      ->fields('method', array('method'))
      ->condition('method', 'method_paypal', '=')
      ->condition('uid', $uid, '=')
      ->condition('status', 1, '=')
      ->execute()->rowCount();


  if(! $check){
    drupal_set_message(t('The payment method: Paypal is not  enabled'), 'info');
    drupal_goto('afl/payment-methods');
  }

  $data = db_select('afl_usr_payment_methods' , 'method')
      ->fields('method', array('data'))
      ->condition('method', 'method_paypal', '=')
      ->condition('uid', $uid, '=')
      ->condition('status', 1, '=')
      ->execute()->fetchField();
  $afl_available_payment_methods = afl_variable_get('afl_available_payment_methods', '');
  $afl_approved_payment_methods = afl_variable_get('afl_approved_payment_methods', '');
  $approved_payment_methods = array();
  if(! empty($afl_available_payment_methods)){
    $afl_available_payment_method_array = list_extract_allowed_values($afl_available_payment_methods,'list_text',FALSE);
      $payment_val = $afl_available_payment_method_array['method_paypal'];
      $afl_available_payment_method_splits = explode('###', $payment_val);
      $afl_available_payment_fields = explode('&', $afl_available_payment_method_splits[1]);
      $field_val = drupal_json_decode($data);
      foreach($afl_available_payment_fields as $fileds){
        $fileds_prop = explode('*', $fileds);
        $field_key = $fileds_prop[0];
        $form[$field_key]= array(
          '#type' => 'textfield',
          '#required' => TRUE,
          '#title' => t($fileds_prop[1]),
          '#default_value' => isset($field_val[$field_key]) ? $field_val[$field_key] : '',
        );
      }

  }

  $form['method_uid']= array(
    '#type' => 'hidden',
    '#value' => $uid,
  );

  $form['submit']= array(
    '#type' => 'submit',
    '#value' => t('Save Payment methods'),
  );

  return $form;
}


function payment_method_paypal_conf_submit($form, &$form_state){
  $val = $form_state['values'];
  $q = db_update('afl_usr_payment_methods')
        ->fields(array('data' => drupal_json_encode($val), 'completed' => 1))
        ->condition('method', 'method_paypal', '=')
        ->condition('uid', check_plain($val['method_uid']), '=')
        ->execute();
  if ($q) {
    drupal_set_message(t('Your Paypal details saved successfully.'), 'status');
  }
}