making ajax updated div blur in

i have formula performs an ajax loads law twin register divs each dropdown changed. i wish law faded div, give some-more apparent denote something changed, the seamless the infrequently tough notice change!

print("$('.ajaxdropdown').change(function(){


        $.ajax({
            type: "get",
            url: "/includes/html/gsm-tariff.php",
            data: "c_name="+escape($(this).val()),
            success: function(html){
                $("#charges-gsm").html(html);
                                    //i wish blur outcome 2 divs...
                $("#charges-gsm-faq").html(html);
                $("#charges-gsm-prices").html(html);
            }
        });
    });");

i've attempted appending fadein slight few things, nonetheless joy.