Looping through stage children in Flash Professional CC 2014 with JavaScript

So I'm just starting to make the move from swf output to HTML. I know AS3 as well as JavaScript, but I can't wrap my head around how to effectively use JavaScript in the context of a Flash document.

I'm making an interactive piece where users need to click on keys on a virtual keyboard (represented as a png of a keyboard with clickable buttons placed over each key). Each of these buttons is essentially the same, but they each need a unique identifier ('esc', 'ctrl', 'f1', etc.). Additionally, I would like to be able to assign event listeners to each of these buttons easily.

I started with AS3 and swf output, but for compatibility reasons, I had to switch to HTML5 output.

To better explain what I'm asking, here is a sample of my original code, and of my converted code.

Original AS3:

//Add event listeners to each button on the stage (I have a movieClip named buttons that contains all buttons)
function SetEventListeners(){
  for(var i:int = 0; i < buttons.numChildren; i++){
       var button = buttons.getChildAt(i);
       button.buttonMode = true;
       button.addEventListener(MouseEvent.CLICK, ClickButton); 
  }
}
//Called by each button being clicked. Performs appropriate action based on which button was clicked.
function ClickButton(e:MouseEvent){
     var button = e.target;
     switch(button.name){
          case "esc":
          //doSomething
          break;
          case "f1":
          //doSomethingElse
          break;
          default:
          //doSomeDefaultStuff
          break;
     }
}

New JavaScript:

this.esc.addEventListener("click", ClickEsc);
this.f1.addEventListener("click", ClickF1);
function ClickEsc(){
     //doSomething
{
function ClickF1(){
     //doSomethingElse
{

As you can see, my JS is going to be extremely bloated and unmaintainable if I take this approach (I'll have to set up a separate function to handle each simulated 'keypress'.

Here are my questions:

1. How can I add event listeners to each button without explicitly doing so as in the JS example above?
2. How can I determine which button was clicked if each button is assigned the same function to execute when clicked (i.e. how can I pass the button's name to the called function)?
3. Is there some resource for learning JS with Flash? My googling has not yielded good results.