HtmlUnit按钮单击

我正在尝试在www.meetme.com上发送消息，但不知道该怎么做。我可以在评论区域中输入消息，但是单击发送按钮不会执行任何操作。我究竟做错了什么？当我登录并按登录按钮时，页面确实发生了变化，一切都很好。有任何想法或线索吗？

I'm trying to send a message on www.meetme.com but can't figure out how to do it. I can type in the message in the comment area but clicking the Send button doesn't do anything. What am I doing wrong? When I login and press the Login button the page does change and everything is fine. Anyone have any ideas or clues?

    HtmlPage htmlPage = null;
    HtmlElement htmlElement;
    WebClient webClient = null;
    HtmlButton htmlButton;
    HtmlForm htmlForm;
    try{

        // Create and initialize WebClient object
        webClient = new WebClient(BrowserVersion.FIREFOX_17 );
        webClient.setCssEnabled(false);
        webClient.setJavaScriptEnabled(false);
        webClient.setThrowExceptionOnFailingStatusCode(false);
        webClient.setThrowExceptionOnScriptError(false);
        webClient.getOptions().setThrowExceptionOnScriptError(false);
        webClient.getOptions().setUseInsecureSSL(true);
        webClient.getCookieManager().setCookiesEnabled(true);

        /*webClient.setRefreshHandler(new RefreshHandler() {
            public void handleRefresh(Page page, URL url, int arg) throws IOException {
                 System.out.println("handleRefresh");
            }

        });*/

         htmlPage = webClient.getPage("http://www.meetme.com");
         htmlForm = htmlPage.getFirstByXPath("//form[@action='https://ssl.meetme.com/login']");

         htmlForm.getInputByName("username").setValueAttribute("blah@gmail.com");
         htmlForm.getInputByName("password").setValueAttribute("blah");

         //Signing in
         htmlButton = htmlForm.getElementById("login_form_submit");
         htmlPage = (HtmlPage) htmlButton.click();

         htmlPage = webClient.getPage("http://www.meetme.com/member/1234567890");

         System.out.println("BEFORE CLICK");
         System.out.println(htmlPage.asText());


         //type message in text area
         HtmlTextArea commentArea = (HtmlTextArea)htmlPage.getFirstByXPath("//textarea[@id='profileQMBody']");
         commentArea.setText("Testing");        


         htmlButton = (HtmlButton) htmlPage.getHtmlElementById("profileQMSend");
         htmlPage = (HtmlPage)htmlButton.click();
         webClient.waitForBackgroundJavaScript(7000);

         //The print is exactly the same as the BEFORE CLICK print
         System.out.println("AFTER CLICK");
         System.out.println(htmlPage.asText());

      }catch(ElementNotFoundException e){
        e.printStackTrace();
      }catch(Exception e){
        e.printStackTrace();
      }