altersoftware.IT develops, maintains and freely distributes some libraries.

All libraries are are licensed under the Creative Commons Attribution 4.0 License, which means you can:

  1. Use them for personal stuff
  2. Use them for commercial stuff
  3. Change them however you like
  4. …all for free, as soon as you always clearly credit for libraries.

AScanvas: canvas.js

An easy approach to canvas, in a OO way.

<script type="text/javascript" src="//" charset="utf-8"></script>

This links the latest version. To link a specific (frozen) version, e.g. “1.0”, use:

<script type="text/javascript" src="//" charset="utf-8"></script>

canvas.js provides the 2D context of the HTML5 canvas object with many additional methods, making charts creation easy. [Reference]

ReCaptcha v2 plugin for Joomla 2.5

Google support for Captcha v1 ends on 31st March 2018, but the Joomla 2.5 Recapthca plugin stopped working yet.

To keep it working and upgrade it to Captcha v2, here there is a fix for the captcha plugin shipped with Joomla 2.5.