问如果方法不是，则卸载一些代码

EN

<script src="https://checkout.stripe.com/checkout.js"></script>

                    <form id="myForm" action="<?php echo base_url('payments/redirect_to_paypal');?>" method="POST">
                            <select class="form-control" id="method" name="Payment-Method">
                            <option value="paypal">Paypal</option>
                            <option value="stripe">Credit Card</option>
                        </select>

    $(document).ready(function(){
            $('#method').on('change',function(){
                var method = $(this).val();
                if(method){
                    if(method == "stripe"){
                        var handler = StripeCheckout.configure({
                            key: 'pk_test_8YUupmrOHjstnsJ5S7hufFzG',
                            image: 'https://stripe.com/img/documentation/checkout/marketplace.png',
                            token: function(token) {
                                $("#stripeToken").val(token.id);
                                $("#stripeEmail").val(token.email);
                                $("#amountInCents").val(Math.floor($("#amountInDollars").val() * 100));
                                $("#myForm").submit();
                            }
                        });

                        $('#customButton').on('click', function(e) {
                            var amountInCents = Math.floor($("#amountInDollars").val() * 100);
                            var displayAmount = parseFloat(Math.floor($("#amountInDollars").val() * 100) / 100).toFixed(2);
                            // Open Checkout with further options
                            handler.open({
                                name: 'شحن رصيدك',
                                description: 'شحن رصيدك بقيمة ($' + displayAmount + ')',
                                amount: amountInCents,
                            });
                            e.preventDefault();
                        });

                        // Close Checkout on page navigation
                        $(window).on('popstate', function() {
                            handler.close();
                        });
                    }else{
                        // unload the upper one

                    }
                }
            });     
    });