Blurred lights effect

[barnabas]

Would anyone know how to do this kind of blurry light effect in flash?

http://img147.imageshack.us/my.php?image=blurredlightiy9.jpg

I mean this effect, blurred lights in the night moving and changing in time, not static picture.

I am looking for any FLA source, I can buy the file if it would be the only way.