Hittest with duplicated movie clips

If I have duplicated movie clips using this code
[AS]onClipEvent (enterFrame) {
count = 1;
while (count<5) {
_root.fall.flakey.duplicateMovieClip(“boxx”+count, count);
count += 1;
}
}[/AS]

Does anyone know how I can use hittest on all the duplicated movie clips?