Checking reCAPTCHA with AJAX and then via form submission

[HarpuaFSB]

Hey all,

I have reCAPTCHA working with my site just fine. I recently
implemented it in a comments section for non-registered users. The
comments section does some fancy stuff such as hiding and showing the
new comments/reply form.

The problem I am running into is that I need to verify the CAPTCHA
without submitting the form because I can't get the user back to where
they were if I reload the page due to how the page is structured.

So what I am doing is verifying the CAPTCHA through jQuery and AJAX.

I have all that working great but once the CAPTCHA is verified I
submit the form to the add comments PHP page where I would like to re-
verify the CAPTCHA but doing so it always comes back as invalid.

I'm guessing this behavior is by design as you can only verify the
"current" CAPTCHA once correct?

The way I have it setup now will stop spammers on the front-end but it
won't necessarily stop bots.

Is there anyway to check a CAPTCHA twice or go about this another way?

Thanks.