Fade.js is a script I've produced to implement the Yellow Fade Technique used by the Basecamp project management tool to spotlight a recently changed section on a page.
Click here to demonstrate on the block below:
Cras imperdiet. Proin non leo a velit ultrices tempor. Phasellus sodales sollicitudin nunc. Fusce sit amet dui. Cras dapibus wisi sagittis lectus. Nam ac velit. Praesent adipiscing tempus turpis. Nunc massa ipsum, tristique quis, vulputate quis, semper vel, arcu. In vestibulum ipsum id quam. Curabitur semper felis vitae arcu. Praesent tristique ligula eu risus.
The start and end colours of the fade are configurable, as is the speed of fade and optionally the delay before the fade begins.
The code uses some of Eric Meyer's Color Blender code to calculate intermediate colours within the fade.