Maxchars is a project mainly written in JavaScript, based on the MIT license.
jQuery plugin to limit input characters in a friendly way
MaxChars Plugin for jQuery Version 1.0.0 http://www.unleashed-technologies.com/
Copyright 2010, Unleashed Technologies, LLC Released under the MIT License. http://www.unleashed-technologies.com/projects/maxchars/MIT-LICENSE.txt
maxchars is a jQuery plugin for easily adding/enforcing character limits on input elements with a friendly UI
For information about this plugin, please visit http://www.unleashed-technologies.com/blog/2010/11/05/jquery-maxchars-plugin