gistfile1.txt

    $(function () {
        var checkoutWindow;
        var statusInterval;
        var timeoutInterval;
        var expired = false;        

        var sec = 5;
        var intervalId = setInterval(function () {
            sec = sec - 1;
            btn.value = 'Автопереход через ' + sec + ' сек.';
            if (sec == 0) {
                clearInterval(intervalId);
                $('#checkoutOrderData').submit();
            }
        }, 1000);

        $('#checkoutOrderData').submit(function () {
            if (checkoutWindow && !checkoutWindow.closed)
                checkoutWindow.close();
            
            if (statusInterval)
                window.clearInterval(statusInterval);
            
            if (timeoutInterval)
                window.clearInterval(timeoutInterval);
            
            $('#info').css('display', 'none');
            $('#processing').css('display', 'block');

            checkoutWindow = window.open('', 'checkoutWindow', 'status=0, toolbar=0, location=0, menubar=0, directories=0, resizable=1, scrollbars=1, Width=800, Height=600');
            
            if (checkoutWindow) {
                $('#infoText').html('Ожидание подтверждения...');

                var windowInterval = window.setInterval(function () {
                    if (checkoutWindow == null || checkoutWindow.closed) {
                        window.clearInterval(windowInterval);
                        $('#infoText').html('Ожидание поступления платежа...');
                    }
                }, 500);
      
                var checkTimeoutHandler = function () {
                    expired = true;
                    console.log('expired');
                    window.clearInterval(timeoutInterval);
                    
                };

                var statusHandler = function () {
                    $.ajax({
                        contentType: "application/json",
                        type: 'GET',
                        cache: false,
                        url: '/checkout/refill/PayU/CreditCardRUB/PayURUB/58937407/State?payment=Wallet.WhiteLabel.Core.Refill.AgentPayment',
                        success: function (data) {
                            console.log(JSON.stringify(data));
                                
                            if (data.paymentState === "Paid")
                            {
                                checkoutWindow.close();

                                window.clearInterval(statusInterval);
                                $('#checkoutOrderData').remove();
                                $('#success').css('display', 'block');

                                window.location.href = '/checkout/refill/PayU/CreditCardRUB/PayURUB/58937407/State?payment=Wallet.WhiteLabel.Core.Refill.AgentPayment';
                            }
                                
                                
                            if (data.paymentState === "Processing")
                            {
                                    
                                if (!timeoutInterval)
                                    timeoutInterval = window.setInterval(checkTimeoutHandler, 60000);
                                    
                            }
                                
                            if (data.paymentState === "CreateError" || data.paymentState === "CheckError" || data.paymentState === "ProcessError")
                            {
                                checkoutWindow.close();

                                if (timeoutInterval)
                                    window.clearInterval(timeoutInterval);

                                window.clearInterval(statusInterval);
                                    
                                $('#checkoutOrderData').remove();
                                $('#failure').css('display', 'block');
                            }

                            if (expired)
                            {
                                window.clearInterval(statusInterval);

                                if (timeoutInterval)
                                    window.clearInterval(timeoutInterval);

                                $('#checkoutOrderData').remove();
                                $('#timeout').css('display', 'block');
                            }
                        }
                    });
                };
                statusInterval = window.setInterval(statusHandler, 5000);
                
            } else {
                alert("Вы должны разрешить всплывающие окна для данного сайта");
            }
        });

        $('#tryAgainBtn').click(function () {
            $('#checkoutOrderData').submit();
        });
    })