public function redirectAction()
    {
        $session = $this->getCheckout();
        $session->setPayuCheckoutQuoteId($session->getQuoteId());
 $session->setPayuCheckoutRealOrderId($session->getLastRealOrderId())
        $order = Mage::getModel('sales/order');
        //$order->loadByIncrementId("100000025");
       $order->loadByIncrementId($session->getLastRealOrderId());
       $order->addStatusToHistory($order->getStatus(), Mage::helper('payucheckout')->__('Customer was redirected to payu.'));
       $order->save();
       $orderId = $order->getRealOrderId();
       $formFields = Mage::getModel('payucheckout/shared')->getFormFields();
      // $formFields=Mage::getModel('payucheckout/shared')->getFormFields();
       //$userInfo=$formFields->getFormFields();
        $key=Mage::getStoreConfig('payment/payucheckout_shared/key');
        $salt=Mage::getStoreConfig('payment/payucheckout_shared/salt');
        $debug_mode=Mage::getStoreConfig('payment/payucheckout_shared/debug_mode');     $url=Mage::getModel('payucheckout/shared')->getPayuCheckoutSharedUrl();       $iframeUrl=Mage::getModel('payucheckout/shared')->getPayuCheckoutIframeUrl();
        $requestData = array();
        $txnid = $orderId;
        //$key = "7xIhPP";
        $requestData['key']         = $formFields['key']  ;
        $requestData['txnid']       = $formFields['txnid'] ;
        $requestData['amount']      = $formFields['amount'] ;
        $requestData['productinfo'] = $formFields['productinfo'] ;
        $requestData['firstname']   = $formFields['firstname'] ;
        $requestData['email']       = $formFields['email'] ;
        $requestData['phone']       = $formFields['phone'] ;
        $requestData['surl']        = $formFields['surl'] ;
        $requestData['furl']        = $formFields['furl'] ;
        //$requestData['curl']         =  Mage::getBaseUrl().'payucheckout/shared/canceled/id/'.$order->getRealOrderId();
        $requestData['hash']        = $formFields['Hash'] ;
        $requestData['pg']          = $formFields['Pg'] ;
        $requestData['bankcode']    = "CC";
    // For DEV integration
//   $url = 'https://test.payu.in/_payment.php?type=merchant_txn';
    // For Live integration
       //$url = 'https://secure.payu.in/_payment?type=merchant_txn';
    $response = $this->curlCall($url, http_build_query($requestData));
//  echo "the URL is ".$url."<br /> The data for order id is ".$orderId."is ".$response; exit;
        //$iframeHtml = '<iframe  width="700px" height="500px" border="0"   src="https://secure.payu.in/_payment.php?type=merchant_txn&txtid='.$response.'&key='.$key.'">

        // For Live Integration
     //$iframeHtml = '<iframe  width="700px" height="500px" border="0"   src="https://secure.payu.in/_merchantCheckoutPage.php?txtid='.$response.'&key='.$key.'"> ';
    // For Test Integration

        $iframeHtml = '<center><div>Kultureshop Payment Method-</div> <iframe  width="900px" height="600px" border="0"   src="'.$iframeUrl.'?txtid='.$response["result"].'&key='.$key.'"> </iframe> </center> ';

        $this->getResponse()->setBody($iframeHtml);
        //$session->unsQuoteId();
       // $session->unsLastRealOrderId();
    }

public function saveShippingMethodAction()
{
    if ($this->_expireAjax()) {
        return;
    }
    $countryId =Mage::getSingleton('checkout/session')->getQuote()->getShippingAddress()->getData('country_id');
$shipping=Mage::getSingleton('checkout/session')->getQuote()->getShippingAddress()->getShippingAmount();

// added by anup to check postal code
if( $countryId != 'IN' && $shipping =='0' )
{
                echo "Invalid Postal Code";

}
    // added by anup to check postal code  -ends
else
{
    $_POST['shipping_method'] = 'flatrate_flatrate';
    if ($this->getRequest()->isPost()) {
        $data = $this->getRequest()->getPost('shipping_method', '');
        $result = $this->getOnepage()->saveShippingMethod($data);

        /*
        $result will have erro data if shipping method is empty
        */
        if(!$result) {
            Mage::dispatchEvent('checkout_controller_onepage_save_shipping_method',
                array('request'=>$this->getRequest(),
                    'quote'=>$this->getOnepage()->getQuote()));
            $this->getOnepage()->getQuote()->collectTotals();
            $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));

            $result['goto_section'] = 'payment';
            $result['update_section'] = array(
                'name' => 'payment-method',
                'html' => $this->_getPaymentMethodsHtml()
            );
        }
        $this->getOnepage()->getQuote()->collectTotals()->save();
        $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));
    }
    }
}

public function savePaymentAction()
{
    if ($this->_expireAjax()) {
        return;
    }
    try {
        if (!$this->getRequest()->isPost()) {
            $this->_ajaxRedirectResponse();
            return;
        }
        if($_POST['billing']['country_id'] == 'IN')
        {
            $_POST['payment']['method'] = 'payucheckout_shared';
        }
        else
        {
            $_POST['payment']['method'] = 'paypal_standard';
        }
        // set payment to quote
        $result = array();
        $data = $this->getRequest()->getPost('payment', array());


        $result = $this->getOnepage()->savePayment($data);

        // get section and redirect data
        $redirectUrl = $this->getOnepage()->getQuote()->getPayment()->getCheckoutRedirectUrl();
        if (empty($result['error']) && !$redirectUrl) {
            $this->loadLayout('checkout_onepage_review');
            $result['goto_section'] = 'review';
            $result['update_section'] = array(
                'name' => 'review',
                'html' => $this->_getReviewHtml()
            );
        }
        if ($redirectUrl) {
            $result['redirect'] = $redirectUrl;
        }
    } catch (Mage_Payment_Exception $e) {
        if ($e->getFields()) {
            $result['fields'] = $e->getFields();
        }
        $result['error'] = $e->getMessage();
    } catch (Mage_Core_Exception $e) {
        $result['error'] = $e->getMessage();
    } catch (Exception $e) {
        Mage::logException($e);
        $result['error'] = $this->__('Unable to set Payment Method.');
    }
    $this->getResponse()->setBody(Mage::helper('core')->jsonEncode($result));
}

save: function(){
        if (checkout.loadWaiting!=false) return;

        var validator = new Validation(this.form);
        if (validator.validate()) {
            checkout.setLoadWaiting('billing');

//            if ($('billing:use_for_shipping') && $('billing:use_for_shipping').checked) {
//                $('billing:use_for_shipping').value=1;
//            }

            var request = new Ajax.Request(
                this.saveUrl,
                {
                    method: 'post',
                    onComplete: this.onComplete,
                    onSuccess: this.onSave,
                    onFailure: checkout.ajaxFailure.bind(checkout),
                    parameters: Form.serialize(this.form)
                }
            );
        }
    },