SQL & PL/SQL

Am not using APEX

How to write code to check for valid response of https://developers.google.com/recaptcha/ in pl/sql?

Here's what I have so far:

    ---------------------------------------------------------------------CAPTCHA BEGINS-----------------------------------

     HTP.p ('

      <form action="" method="post">

    <!-- ... your form code here ... -->

    <script type="text/javascript"

       src="http://www.google.com/recaptcha/api/challenge?k=6Lc3xPISAAAAALx-LYrgQZVLEglu">

    </script>

    <noscript>

       <iframe src="http://www.google.com/recaptcha/api/noscript?k=6Lc3xPISAAAAALx-LYrgQZVLEglu"

           height="300" width="500" frameborder="0"></iframe><br>

       <textarea name="recaptcha_challenge_field" rows="3" cols="40">

       </textarea>

       <input type="hidden" name="recaptcha_response_field"

           value="manual_challenge">

    </noscript>

    <!-- ... more of your form code here ... -->

  </form>

    ');

    ---------------------------------------------------------------------CAPTCHA ENDS----------------------------------

thanks,

Alex Glaros