addEventListener functions with a for loop?

programming flash
1

I have four buttons with eventListeners that call four different
functions. Each function name starts with the button name. like
this:

btn1.addEventListener(MouseEvent.MOUSE_OVER, btn1function);
btn2.addEventListener(MouseEvent.MOUSE_OVER, btn2function);
btn3.addEventListener(MouseEvent.MOUSE_OVER, btn3function);
btn4.addEventListener(MouseEvent.MOUSE_OVER, btn4function);

I would like to use a for loop to setup the eventListerners with
an array of the buttons. I would also like to define call the
functions with in the addEventListener using the Array by
concatenating the button name stored in the array with the
rest of the function name (function) like this:
btnArray*+function which would give me all four functions.
I know my problem is typing and that i need to maybe turn the
function names in to a string in order do concatenate them.
like this:

ar btnArray:Array = new Array(btn1,btn2,btn3,btn4);

for(var i = 0; i < 4; i++){
var b = (btnArray*);
b.addEventListener(MouseEvent.CLICK, b+function);
}

If this is possible would someone show me how.

Thanks