ActionScript 2.0 :: Check If All The Nav Items Are Moused Out

I've written a dynamic nav and need a better way to check if all the nav items are moused out.

Basically when a nav item is made it is given a mouse out and mouse in. When you mouse in it sets a value of '0' in an array and moused out is set a value of '1'.

There is then this piece of code

ActionScript Code:
//Listen and Move
mcNavOutTest.onEnterFrame = function():Void {
nCounterToFade = 0;
for (var r:Number = 0; r < arClosed.length; r++) {

[Code].....

That adds all the values of the array together. When you mouse out a nav it tests to see if 'nCounterToFade' is equal to the length of the array (meaning all values of the array are 1 = all nav items are moused out).

I think its really bad to have a for loop being constantly tested with an onenterframe event. How can I make this better / test if all nav items are moused out. It would have been ideal to create some sort of if statement that checks all nav items but I don't know how to do this dynamically.