How to do this? Light Dimming

Hello All,

I’m new in flash and just start to play it around.

I have google the web and found the site below where they using Shockwave to control the light dimming.

http://www.erco.com/en_index.htm?http://www.erco.com/guide_v2/guide_2/lighting_co_93/program_con_1726/en/en_program_con_intro_1.htm

So how the flash can do the light dimming or any resource available.
Please advice.

Many Thx for all.
Cheers,
YSL