How to refresh captcha without full page refresh

Question

Hi,
I am using simple captcha implementation using the following link.
[http://www.oracle.com/technetwork/developer-tools/jdev/captcha-099103.html|http://www.oracle.com/technetwork/developer-tools/jdev/captcha-099103.html]
Captcha image refreshes page reload but if i set partialSubmit=true It does not changes the image of the servlet . What is the way to refresh image .
           <af:image  id="iCaptcha"     
                                        source="/captchaservlet"
                                        inlineStyle="width:122px; height:49.0px;"
                                        partialTriggers="cil2"
                                        binding="#{AfProMSDSSearchAction.captchaImage}"/>When I reset the image source by reseting it by javascript it does not refreshes .
  <af:resource type="javascript">
          function loadCaptchaImage() {          
            var captchaURL = "/captchaservlet?rand=" + Math.random();           
            parent.document.getElementById("pt1:s12:iCaptcha").src=captchaURL;
        </af:resource>

Answer 1

Hi frank,
I got the solution I can change the Captcha image without full page refresh by just adding temparary request parameter to that image so that url changes and it calls servlet again.
Below code will add random number as a request parameter to the servlet url so that url changes everytime.
                RichImage image = (RichImage)JSFUtils.findComponentInRoot("iCaptcha");
                String randomString= String.valueOf(Math.random());
                image.setSource("/captchaservlet?rand="+randomString);          
                RichPanelGroupLayout capImgPGL = (RichPanelGroupLayout)JSFUtils.findComponentInRoot("capImgPGL");
                AdfFacesContext.getCurrentInstance().addPartialTarget(image);
                AdfFacesContext.getCurrentInstance().addPartialTarget(capImgPGL);