for (nameFn in block){

 

        block.nameFn.addEventListener (MouseEvent.MOUSE_DOWN, nameFn);

        function nameFn (e:MouseEvent) {

                trace (nameFn);

        }

 

}

for (var i :int = 0; i<block.numChildren; i++){

        block.getChildAt(i).addEventListener (MouseEvent.MOUSE_DOWN, handler);

}

 

function handler (e:MouseEvent) {

                trace (e.target.name);

}