Handle Internet Connection Failure

Hi All, I am using recaptcha in my application and would like to give a message to user if captcha is not available due to un- availability of internet connection.Please suggest how can I handle this case.Tks,Puneet Jain -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/1gYXIc9.