I saw this web site few days back. Here is the link.
http://www.derbauer.de/
When you load the page wait and see that menues at the very beginning shows metalic light sweeps by time to time.
Also in this page a similar effect is done. Link: http://www.neteffects1.net/ne1flash/index.html. In the main page you would see all lights running around.
I hope I was able to explain what I am talking about. Can someone tell me how it is done or perhaps a tutorail would be nice.
thanks