jqury

  // Braintree gateway
    var ajax_submit = function (e) {

        var form = $('#payment-form');
        e.preventDefault();

        $("#submit_braintree").attr("disabled", "disabled");
        $.post(
            form.attr('action'), //url: /welcome/transaction
            {
                first_name: $('#first_name').val(),
                last_name: $('#last_name').val(),
                number: $('#number').val(),
                cvv: $('#cvv').val(),
                year: $('#dd-year').find('.dd-selected-item').text(),
                month: $('#dd-month').find('.dd-selected-item').text(),
                plan_id: selectedPlanId,
                time_slot: selectedTimeSlot
            },
            function (data) {
                //
                if (data =='OK') {
                    //console.log('yes');
                    $('#rootwizard').bootstrapWizard('show',2);
                } else {
                    //console.log(data);
                    $("#submit_braintree").removeAttr("disabled");

                    $('#rootwizard').bootstrapWizard('show',0);
                    $('#pay-error-box').html(data);
                    $('#pay-error-box').fadeIn('fast');
                }
            });
    }

    $('#submit_braintree').click(function(){
        var form = $('#payment-form');
        var braintree = Braintree.create("<?php echo $braintree_cse_key; ?>");
        braintree.onSubmitEncryptForm('payment-form', ajax_submit);
        alert(ajax_submit);
        form.submit();
    });