CAPTCHA form messing up ajax/jquery/php

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I had someone fix a captcha form I was having an issue with... and it's working fine (visually). The captcha error shows as a JS popup, HOWEVER when you press OK it bypasses it and submits the form.

quick fix under $30 bid

Need it done in the next 10 min!!!! very important

Skills required:
AJAX, Javascript, jQuery / Prototype, PHP
About the employer:
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