QuickNote jQuery Plugin

This is my first attempt on jQuery plugin development. Useful on admin dashboard.
Please have a look and try it. Also comment on improvements and bugs. Thank you very much.

The javascript:

The css:

Github: https://github.com/pantuts/QuickNote-jQuery-Plugin
Demo: http://pantuts.com/demos/jquery.quicknote/index.html and http://pantuts.com/demos/jquery.quicknote/index2.html