Sequential External SWF files

I’ve seen some “how-to’s” on this, but none quite fit my situation. I have 4 swf files. I want to play them sequentially, in a certain order, and when the last is done, i want to start over at the first. the swf files are created from captivate. i am going with the assumption that i can’t edit the swf files to string the swf files together. i was thinking i could do loadMovieNum and then after that go to the next scene, etc and then on the 4th scene, i could loop back to the first. the problem is i don’t know how to tell when these swf’s are done playing. the samples i’ve found involved modifying the source swf files, but i don’t think i can do that. what is the best way to accomplish what i’m trying to do? thanks.