How do I use a variable to name a movie clip?

I am trying to duplicate a move clip and then set some of it’s properties with actionscript. What’s the notation to do this?

Here is my guess:


duplicateMovieClip(_root.event, ("event"+i), i);
[event+i]._y = ([event-i]._y)+([event+i].height);
[_root.event+i].eDate = ("4/2"+i);
trace([_root.event+i].eDate);

Thanks in advance,
RMB