listBox.addClickHandler() issue when using google chrome
===

I have a code where uses two listboxes.

The first listbox lists all the spreadsheets from a folder.
The second one will load the sheets from the spreadsheet selected on the previews listbox.

The problem is that when using Google Chrome, as soon as I select the spreadsheet in the first listbox, nothing happens. Everything works fine on Firefox and Safari.
Below is an example of the code I'm writing.
Can someone please help me to have this working on Chrome?

Regards,
Narley

    function doGet(e) {
      var app = UiApp.createApplication();
      app.add(app.loadComponent("Archive"));
      
      var lbMonth = app.getElementById("lbMonth").setStyleAttribute("font-size", "14pt").setName("lbMonth");
      var lbDate = app.getElementById("lbDate");
      var taAbsences = app.getElementById("taAbsences");
      
      var doc = DocsList.getFolderById(FOLDER_ID);
      var ss = doc.getFiles();
      lbMonth.addItem("Month");
      lbDate.addItem("Date");
      
      var ssId = "";
      
      for(var i=0; i<ss.length; i++) {
        var fileName = ss[i];
        ssId = fileName.getId();    
        lbMonth.addItem(fileName.getName());
      }
      
      var lbMonthHandler = app.createServerClickHandler("loadDateListBox");
      lbMonth.addClickHandler(lbMonthHandler);
      
      return app;
      
    }
    
    
    function loadDateListBox(e) {
      var app = UiApp.getActiveApplication();
      var lbDate = app.getElementById("lbDate");
      var label = app.getElementById("Label1");
    
      var doc = DocsList.getFolderById(FOLDER_ID);
      var ss = doc.getFiles();
      
      
          label.setVisible(true);
          lbDate.addItem("Test1");
          lbDate.addItem("Test2");
      
      return app;
    }
    
        