Array to load movie

here some problem. if have 4 button : a , b , c, d .user click a will load a.swf , click b will load b.swf , while click a& b will load a.swf then b.swf , if click a &b &c will load a.swf then b.swf then c.swf . For the last case , while finish loading a.swf izzit imposible for it to load itseft , i mean after a.swf finish loading it straight away load b.swf without any next button ?

izzit correct to use array to store the swf file , then trace them out?

best wishes