Replace Checkout Name with First Name / Last Name

//CUSTOMER

$(".checkoutcustomerdetailsDiv .checkoutcustomerdetails").prepend('

');
$(".checkoutcustomerdetails #ship_name").removeClass("validateRequired").closest(".cmsFormElement").hide();


$("#f_name,#l_name").on('change', function(){
  var f = $("#f_name").val();
  var l = $("#l_name").val();
 $("#ship_name").val(f+" "+l);
});

//DELIVERY

$(".checkoutdeliveryaddress #gift_name").closest(".cmsFormElement").before('

');

$(".checkoutdeliveryaddress #gift_name").removeClass("validateRequired").closest(".cmsFormElement").hide();


$("#df_name,#dl_name").on('change', function(){
  var f = $("#df_name").val();
  var l = $("#dl_name").val();
 $("#gift_name").val(f+" "+l);
});

$("#copyCustomerAddressCheckbox").on('change', function(){
if ($(this).is(':checked')) {
        var f = $("#f_name").val();
        var l = $("#l_name").val();
 $("#df_name").val(f);
 $("#dl_name").val(l);
}
});