Chameleon CSS free WordPress plugin
Description
Chameleon CSS free WordPress plugin
Chameleon CSS let your WordPress site to automatically select CSS file upon your specific condition, for current release Time, Date, Day and Month conditions are available.
Generate CSS switch list (widget and template tag)
Feature:
Date, Time, Day and Month condition
Date-Time souce: Client or Server
CSS switch list (Widget and Template Tag)
Very friendly UI
Compatible with WP Super Cache
Relate Link: Plugin Homepage & Document
Credit
Justin Tadlock : widget creating guide http://justintadlock.com/archives/2009/05/26/the-complete-guide-to-creating-widgets-in-wordpress-28
Jim Wurster : CSS switch list (feature suggest)