HTML5 validates forms without additional JavaScript.

Currently only Firefox 4, Safari & Google Chrome supports this functionality. This plugin gets the same result in Internet Explorer, Opera & Firefox.

With a single line of code.

Public repo for the latest version.

<script src="http://html5form.googlecode.com/svn/trunk/jquery.html5form-min.js"></script>

How to use?

<script>
   $(#myform).html5form();
</script>

English documentation: http://www.matiasmancini.com.ar/html5form_en.php

Documentación en español: http://www.matiasmancini.com.ar/html5form.php