ActionScript 3.0 :: VideoEvent Listener Not Working With Dynamic Clips?

I have what should be a simple bit of code. I have 25 movie clips laid out in a grid; each is named myVideo1, myVideo2, etc. When a clip is mouseovered, it should start playing and loop until mouseout, whereupon it will stop.

Here is the code:


Code:
import fl.video.*;
for (var i = 1; i <= 25; i++) {
["myVideo" + i]addEventListener(MouseEvent.MOUSE_OVER, playMovie);
["myVideo" + i]addEventListener(MouseEvent.MOUSE_OUT,stopMovie);

[Code].....

then the listener and function work fine for that particular clip. The two mouse listeners work fine with the dynamic assignation. I was hoping to avoid having to add 25 lines of code to setup the VideoEVent listener for each individual clip and don't understand why ["myVideo" + i] doesn't work as it does for the mouse event listeners.