AS3: Array of buttons and mouse click listeners inside a for loop

I'm working on a simple Animate/Flash interface/Swf panel that will trigger JSFL scripts that are listed in an external xml file, so I can keep them visible instead of under the /Commands menu.

I'm having a problem declaring the mouse listeners inside the for loop, where the var has already finished counting when I click, so it traces the max of i on all buttons (4).

I think I need to declare the current i inside the button as it runs through the loop, (which will be replaced by the jsfl name/url items from the xml)

I don't think I can simply pass a single int to a function on click, since I want the xml to have sub folders/ groups of items.

This is a simplified code of just the button creation that shows the problem:

(Apologies, It has been a while since I wrote AS3)

import flash.display.*
import flash.events.*;
import fl.controls.*;
import flash.events.*
import flash.net.*;
var buttonSetsArray: Array = new Array();
function init() {
    for (var i: int = 0; i < 4; i++) {
        var myButton: Button = new Button();
        myButton.label = String(i);
        myButton.width = 20;
        myButton.move(22 * i, 5);
        addChild(myButton);
        buttonSetsArray = myButton;
        buttonSetsArray.addEventListener(MouseEvent.CLICK, function (evt: MouseEvent) {
            trace(i);
          //this is where I want to pass several xml items to a function, just trying to get the i for now.
        });
    }
}
init();