Glow filter grow+shrink on animated movieclip - need advice

I followed THECANADIAN’s ‘Applying and Animating Filter Effects’ tutorial and ran into a little problem.

My interface is presented DIABLO style where there’re a few characters to choose from and each character/movieclip is a looped animation. The script for applying the glow filter to grow/shrink on rollover/rollout appear to work fine but I noticed as long as the mouse is over the movieclip, the glow ‘grow effect’ repeats itself as soon as the character animation loops.

The actionscript sample can be found at:

http://www.kirupa.com/developer/flash8/filter_effects.htm

As in the blurX and blurY values grows from 3 to 20 repeatedly as long as the mouse stays over the animated movieclip.

Is the looping animation the cause of the problem (conflicting with the this.onEnterFrame function)? If it is, how do I work around it?

Any advice would be greatly appreciated.

Rgds,
Dan