<div class="modal modal_add_arquivo fade" id="modal_add_arquivo" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title">Modal title</h4>
      </div>
      <div class="modal-body">
        <div class="form-group">
              <label>Arquivo</label>
              <input id="novo_arquivo" name="novo_arquivo" class="form-control" placeholder="Nome do arquivo">
        </div>
        <div class="error_add_arquivo">
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary btn_add_arquivo action_add_arquivo">Save changes</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->