application.js

jQuery.fn.getWithAjax = function() {
  this.unbind('click', false);
  this.click(function() {
    $.get($(this).attr("href"), $(this).serialize(), null, "script");
    return false;
  })
  return this;
};

function ajaxLinks(){
  $('.ajaxForm').submitWithAjax();
  $('a.get').getWithAjax();
  $('a.post').postWithAjax();
  $('a.put').putWithAjax();
  $('a.delete').deleteWithAjax();
  return false;
}

$(document).ready( function(){

  ajaxLinks();

});

index.js.erb

<% if !@note_groups.blank? %>

  $("#note_groups").html("<%= escape_javascript( render :partial => 'note_group', :collection => @note_groups )  %>")

<% else %>

  $("#note_groups").html("<%= escape_javascript( render :partial => 'empty_note_group')  %>")

<% end %>
 

main_view.html.haml

#note_groups
  =link_to 'Click here to see all note groups", note_groups_path, :class => 'get'