title: How to show a loading image in KendoUI Autocomplete
body: <p>I have following code for Autocomplete.</p>
  
  <pre><code>$("#input").kendoAutoComplete({
          minLength: 4,
          dataTextField: "ProductName",
          template: kendo.template($('#productAutoCompleteTemplate').html()),
          dataSource: {
              serverFiltering: true,
              data: "json",
              transport: {
                  read: {
                      url: productSearchUrl,
                      dataType: "json",
                      type: "post"
                  },
                  parameterMap: function(data) {
                      return {
                          searchText: $('input.txtProductText', $panelBar.select()).val()
                      };
                  }
              }
  
          },
          select: onProductSelected
      });
  </code></pre>
  
  <p>Autocomplete working fine. But I need to show a loading image until the data has been retrieved from the server. How can I implement this with KendoUI Autocomplete?</p>