tracks/app/views/projects/_goto_item.html.erb

<div id="tracks-go-item-dialog" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
        <h4 id="myModalLabel">...</h4>
      </div>
      <div class="modal-body">
        <form action="/goto" method="get" data-link="/goto" role="form">
          <div class="form-group">
            <input type="text" id="tracks-goto-item" class="form-control input-medium search-query ajax-typeahead" placeholder="..." 
             data-link="/from_go_item_dialog.autocomplete" autocomplete="off">
          </div>
        </form>
      </div>
      <div class="modal-footer">
        <button class="btn btn-default" data-dismiss="modal" aria-hidden="true">Close</button>
        <button class="btn btn-primary">Go to project</button>
      </div>
    </div>
  </div>
</div>