  <script type='text/javascript'>
    var config = {
      '.chosen-select'           : {},
      '.chosen-select-deselect'  : {allow_single_deselect:true},
      '.chosen-select-no-single' : {disable_search_threshold:10},
      '.chosen-select-no-results': {no_results_text:'¡Sin resultados!'},
      '.chosen-select-width'     : {width:'95%'}
    }
    for (var selector in config) {
      $(selector).chosen(config[selector]);
    }
  </script>