_partial.html.erb

<%= javascript_include_tag 'common' %>

<%= nested_form_for(@enquiry) do |f| %>

   <div class="frbox">
                         <%= f.label :date_of_birth %>
                         <%= f.text_field :date_of_birth,{class: "dateField"} %>
   </div>

<% end %>

application.js

// enquiries tabs switching
function enquiryTabSwitch(obj){
    
    var cond = $(obj).data("cond");
    var partial = $(obj).data("partial");
    var enquiry_id = $(obj).data("enquiry_id");
    var lang = $(obj).attr("lang");
    
    url = '/enquiries/tab/' + cond + '/' + partial + '/'
    
    if (typeof enquiry_id !== "undefined"){ url = url + enquiry_id; }
    
    $.get(url ,function(table){
     $('#'+lang).hide().html(table).fadeIn(1000);
    });

}