syntax on donate?

    $('#hideCustom').hide();
    $('#amount').change(function () {
        var val = $(this).val();
        if (val == 'Other Donation') {
            $('#hideCustom').show();
        } else {
            $('#hideCustom').hide();
        }
    });
    $('#submit').click(function() {
        var amt = $('#otherDonation').val();
        if(amt < 0.01){
        var amt = 15.00;
        }
        $('#customAmount').attr("value", amt);
    });