Array help with attached MC from stage

I have created a set of MC’s loaded from library via attachMovie in a for loop. Right now I have a set of MC’s that are attached with the numbers 1-8. I would like to be able to select a MC and traces back its number. I know this can be achieved through an array. I know how to build arrays, but i do not know how to create an array what would trace back a number form a for loop. Here is the code:


for (i=0; i<8; i++) {
	currentThumb = navClip.attachMovie("numberBox", "clip"+i, i, {_x:(i*50)});
	currentThumb.imageNum.text = i+1;
	navClip._x = (Stage.width/2)-(navClip._width/2);
	currentThumb.onRelease = function() {

Any help in the right direction on building my array would be appreciated. I need it to call back in the onRelease the number associated with that clip(array).