it is beautiful!
thanks! there is so much to learn for this forum.  U have made great difference for free access to education.

Thanks a million.

by the way, are you going to AAPT National Meetings Summer 2010, July 17-21 (Portland, OR)?
didn't see your name here http://www.aapt.org/Conferences/sm2010/loader.cfm?csModule=security/getfile&pageid=25158

I have an abstract accepted  ;D
WEE Loo Kang Physics Educators as Designers of Simulation Using Easy Java Simulation
Simulated Learning/ Using Simulations to Teach Physics
Contributed FI05        Salon Ballroom II       7/20/2010         2:30 PM       2:40 PM
http://sgeducation.blogspot.com/2010/02/american-association-of-physics.html