text: /* jQuery UI autocomplete Combobox */
  ;(function($, window, document, undefined) {
    $.widget( "ui.combobox", {
      options: {
        customRenderOptions: false
      },
      _create: function() {
        var input,
        self = this,
        select = this.element.hide(),
        selected = select.children( ":selected" ),
        value = selected.val() ? selected.text() : "",
        wrapper = this.wrapper = $( "<span>" )
        .addClass( "ui-combobox" )
        .insertAfter( select );
  
        input = $( "<input>" )
        .appendTo( wrapper )
        .val( value )
        .addClass( "ui-state-default ui-combobox-input" )
        .autocomplete({
          delay: 0,
          minLength: 0,
         // source, select, and focus functions modified to increase speed when dealing with large lists. limits list to first 100 results. taken from: http://stackoverflow.com/a/6865343
          source: function( request, response ) {
            var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
            var select_el = select.get(0); // get dom element
            var rep = new Array(); // response array
            var maxRepSize = 100; // maximum response size  
            // simple loop for the options
            for (var i = 0; i < select_el.length; i++) {
              var text = select_el.options[i].text;
              if ( select_el.options[i].value && ( !request.term || matcher.test(text) ) )
                // add element to result array
                rep.push({
                    label: text, // no more bold
                    value: text,
                    option: select_el.options[i]
                });
              if ( rep.length > maxRepSize ) {
                rep.push({
                  label: "... more available",
                  value: "maxRepSizeReached",
                  option: ""
                });
                break;
              }
            }
            // send response
            response( rep );
          },          
          focus: function( event, ui ) {
            if ( ui.item.value == "maxRepSizeReached") {
              return false;
            }
          },
          select: function( event, ui ) {
            
            if ( ui.item.value == "maxRepSizeReached") {
                return false;
            } else {
                ui.item.option.selected = true;
                self._trigger( "selected", event, {
                    item: ui.item.option
                });
            }
          },
          change: function( event, ui ) {
            if ( !ui.item ) {
              var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( $(this).val() ) + "$", "i" ),
              valid = false;
              select.children( "option" ).each(function() {
                if ( $( this ).text().match( matcher ) ) {
                  this.selected = valid = true;
                  return false;
                }
              });
              if ( !valid ) {
                // remove invalid value, as it didn't match anything
                $( this ).val( "" );
                select.val( "" );
                input.data( "autocomplete" ).term = "";
                return false;
              }
            }
          }
        })
        .addClass( "ui-widget ui-widget-content ui-corner-left" );
  
        input.data( "autocomplete" )._renderItem = function( ul, item ) {
          
          if(self.options.customRenderOptions) {
            self._trigger( "renderDD", this.event, {
              ul: ul,
              item: item
            });
          }
          else {
            return $( "<li></li>" )
            .data( "item.autocomplete", item )
            .append( "<a>" + item.label + "</a>" )
            .appendTo( ul );
          }
        };
  
        $( "<a>" )
        .attr( "tabIndex", -1 )
        .attr( "title", "Show All Items" )
        .appendTo( wrapper )
        .button({
          icons: {
            primary: "ui-icon-triangle-1-s"
          },
          text: false
        })
        .removeClass( "ui-corner-all" )
        .addClass( "ui-corner-right ui-combobox-toggle" )
        .click(function() {
          // close if already visible
          if ( input.autocomplete( "widget" ).is( ":visible" ) ) {
            input.autocomplete( "close" );
            return;
          }
  
          // work around a bug (likely same cause as #5265)
          $( this ).blur();
  
          // pass empty string as value to search for, displaying all results
          input.autocomplete( "search", "" );
          input.focus();
        });
      },
  
      destroy: function() {
        this.wrapper.remove();
        this.element.show();
        $.Widget.prototype.destroy.call( this );
      }
    });
  })(jQuery, window, document);