delivery_show();

        $('.delivery_btn').on('click',function(){

            delivery_show();

        });

        function delivery_show() {

            var delivery_type_val = $("input[name='delivery_type']:checked").val();

            if (delivery_type_val == ''){

                $('.delivery_type_1').show();

                $('.delivery_type_2').hide();

            } else if(delivery_type_val == ''){

                $('.delivery_type_2').show();

                $('.delivery_type_1').hide();

            }

        }