ajax captcha pluginThis joomla plugin allows to protect form from spam, with an accessible CAPTCHA. Several type of Captcha can be used instead of the classical distorted image:
  • the classic distorted text image
  • the accessible version with sound (mp3)
  • the math quiz
  • the ascii art
  • Roman number
The code verification and the refresh features are made with ajax so don't need to reload the page. This plugin for work don't change joomla core file, so it can works with any 1.5 Joomla version, despite you need to use it with compatible extension like AUser Manager Component for example, if you want to protect the login or register form, ect. If you want protect the contact form use for example the Acontact Manager. For 3dp extensions developer  integration take a look at AUser Manager or AContact Manager code is very easy to integrate in other components the captcha plugin, if they are developed with Model View Controller (MVC) design pattern like the Joomla core components are. The captcha plugin works with two events that need to be triggered, the onView: to show the capctha, and the onVerify to check the inputed code. So is very easy to use trigger the onView event on your form layout, and verify the User response triggering the onVerify event from your component controller code.

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