DHTML and CSS CAPTCHA
CAPTCHA is the name of an approach used to distinguish site accesses performed by real humans from robot script accesses. Usually the pages show fuzzy pictures with letters that the user needs to guess. However there are smart anti-CAPTCHA robots that can also guess what is written in CAPTCHA picture. This package provides an alternative CAPTCHA solution that consists in using colored boxes that the user must click in order to have access to the protected site resources. Since this is a new...