upgrading jquery ui 1.8.5 to 1.10

upgrading jquery ui 1.8.5 to 1.10

i am using autocomplete in one of my project. I want to upgrade from ui 1.8.5 to 1.10.1 . i simple include the new new libraries of jquery and jquery ui and autocomplete is not showing the result menu, it just displays the text "2 results are available" and i can navigate among the result but menu for selection is not displayed. here is the code for autocomplete. 

  2. function initLoc() {
  3.     $(".location").each(function (index) {
  4.         $(this)
  5.         .bind("keydown", function (event) {
  6.             if (event.keyCode === $.ui.keyCode.ENTER && !$(this).data("selectVisible")) {
  7.                 $(this).val('');
  8.             }
  9.         })
  10.         .autocomplete({
  11.             minLength: 3,
  12.             delay: 100,
  13.             autoFocus: true,
  14.             source: function (request, response) {
  15.                 var term = request.term;
  16.                 if (term in cache) {
  17.                     response(cache[term]);
  18.                     return;
  19.                 }

  21.                 lastXhr = $.getJSON("/httphandlers/SearchLocationContents.ashx?city=" + city, request, function (data, status, xhr) {
  22.                     cache[term] = data;
  23.                     if (xhr === lastXhr) {
  24.                         response(data);
  25.                     }
  26.                 });
  27.             },
  28.             open: function () {
  29.                 $(this).data("selectVisible", true);
  30.             },
  31.             close: function () {
  32.                 $(this).data("selectVisible", false);
  33.             },
  34.             search: function () { if ($.trim(this.value) == "") return false; },
  35.             select: function (event, ui) { },
  36.             change: function (event, ui) {
  37.                 if (!ui.item) {
  38.                     var val = $(this).data("uiItem");
  39.                     if (typeof val === 'undefined') {
  40.                         val = '';
  41.                     }
  42.                     $(this).val(val);
  43.                 }
  44.             }
  45.         });
  46.     });
  47. }
here is the image of the result. 



I want to hide the text "2 results available" and menu should be displayed.