Actionscript to Loop

I've built an interactive Flash demonstration that I either need to loop back to the first frame (which essentially attaches the initial MC onto the dummyMC) after 260 sec. or an event listener that will listen for if a certain amount of time (120 sec.) has passed and if so, it attaches the initial MC and starting the demo over.

Thanks in advance!

You can place on your last frame a blank keyframe and attach the code gotoAndPlay(1); -> this will force your whole movie to start all over again each time it gets to the end.