var cache = {}, lastXhr;

$("#hifind-find").autocomplete({
  source: function(request, response) {

    var term = request.term;
    if (term in cache) {
      response(cache[term]);
      return;
    }

    var posturl = '/hifind/jquery_ui/autocomplete/'+term;
    lastXhr = $.post(posturl, function(data, status, xhr) {
      cache[term] = data;
      if (xhr === lastXhr) {
        response(data);
      }
    }, 'json');
  },
  delay: 300,
  minLength: 2
});

$("#hifind-find").bind('autocompleteselect', function(event, ui){
  window.location = ui.item.dest;
});