monster.js

    show_autocomplete: function (itemName, collection) {
      $('.' + itemName).autocomplete({
        source: function (request, response) {
          var contains1, containsMatcher1, startsWith1, startsWithMatcher1, term;
          term = $.ui.autocomplete.escapeRegex(request.term);
          startsWithMatcher1 = new RegExp('^' + term, 'i');
          startsWith1 = $.grep(collection, function (value) {
            return startsWithMatcher1.test(value.label || value.value || value);
          });
          containsMatcher1 = new RegExp('\\b' + term, 'i');
          contains1 = $.grep(collection, function (value) {
            return $.inArray(value, startsWith1) < 0 && containsMatcher1.test(value.label || value.value || value);
          });
          return response(startsWith1.concat(contains1));
        }
      });
    }