reCaptcha using Mootools’ Json Request

A captcha program can tell if a user is a human or a computer. Most websites use captcha in order to prevent spam. You can see this mostly in contact and signup forms. One great captcha service that is available today is reCaptcha. If you are not quite familiar with how reCaptcha works, I’ll show you how. First, you must get an API key first at http://recaptcha.net/api/getkey. After you get the public and private keys, create an xhtml file and insert the snippet below at the head section of the file.

<script src="http://api.recaptcha.net/js/recaptcha_ajax.js" type="text/javascript"></script>

Next, we will be needing the Mootools library which we will use in order for Recaptcha.js to function.
Read more…