HELP ME PLZ... stoping a mc for scrolling gallery

So im making an image scroller for my page… and i want when i scroll over the mc’s that it will slow or stop it… and then on the rollout it will start again… but i have all the pics as a seperate MC with

onClipEvent(enterFrame){
_x=_x+2;
if(_x>=1435){
_x=-0;
}
}

as my code… for individual images… and then all the mcs of the clip are in a mc

il include the fla… but someone please help im so confused

http://www.ocarrollcabinets.com/ryan/scroller.fla

thanks…

-ryan-