title: How to deal with jquery ajax comments and captcha
body: <p>I am working on a comment system on a social network,  I am using jquery, I can post the comments with ajax with no problem but sometimes I need a user to submit a captcha form if they are posting too many comments or for other reasons.  </p>
  
  <p>I think the best way to do this is to add it into the current comment posting part, if the php script returns a response, stating that we need to do a captcha form, then I would like to auto open up a dialog window on the screen, let the user fill in the captcha form, then carry on and post there comment.  </p>
  
  <p>This is somewhat complex for me but I have most of it done I think, maybe you can read my comments below and help me with the captcha part, mainly on how I can trigger a dialog to open, how I can pass the comment value/text through the captcha and back to the comment backen again on sucess and also if the user gets the captcha wrong, then it will reload the captcha</p>
  
  <pre><code>$.ajax({
      type: "POST",
      url: "processing/ajax/commentprocess.php?user=",
      data: args,
      cache: false,
      success: function (resp) {
          if (resp == 'captcha') {
              //they are mass posting so we need to give them the captcha form
              // maybe we can open it in some kind of dialog like facebox
              // have to figure out how I can pass the comment and user data to the captcha script and then post it
          } else if (resp == 'error') {
              // there was some sort of error so we will just show an error message in a DIV
          } else {
              // success append the comment to the page
          };
      }
  });
  </code></pre>