This is an alternative to CAPTCHA. Users visiting your website need not fill in squiggly letters from a CAPTCHA image. This JavaScript plugin quietly discovers if the user is a human or not.
With this plugin,
1. the form records certain events to prove human involvement.
2. if JavaScript is not enabled, a fallback solution kicks in (ofcourse requires human involvement).
3. the human checks are invisible to the user where possible.
4. it is not possible for the bot to discover the test and to spoof the results.
Read more and download the source from the below link.
http://www.webdesignfromscratch.com/javascript/human-form-validation-check-trick.php
Invisible Human Check For Web Forms
Labels: Captcha Showcase
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