Resetting the blur effect. Please help

Hi,
I have a MC1 and I attached a MC2 from the library to MC1.
MC1 has got a xBlur effect (100 and quality 3) by actionscript. It works fine. I want to reset the MC1 and next time I attach the same MC2, it runs again as before.
How can I reset this blur effect such that the MC1 and MC2 have no blur for the next loop?

Thanks