ActionScript 3.0 :: Language Selection In App - How To Handle Sounds And Text

We are working on a small project. The movie asks you to point out an animal, then when you point it out, it enlarges it and tells you what it is using a text box as well as a voice clip. We want to make the movie bilingual. So the splash screen will have the choice "English" and "Espaeol". If the user chooses english and then clicks an animal we want the item to be identified in english. So the english text box and english sound clip to show up. if the choice is spanish we want the item identified using spanish text and voice. Heres is the AS i have so far and it works beautifully. This is from before we decided to incorporate Spanish. As it is I have the text and voice on each individual MC timeline.

ActionScript Code:
//this is to bring each animal to the front when clicked but serves to turn each MC into a button
var animals : Array = [pig_mc, chicken_mc, rabbit_mc, donkey_mc, sheep_mc, horse_mc, goat_mc, frog_mc, duck_mc, cow_mc]
for (var i:int = 0; i< animals.length; i++){
animals[i].addEventListener(MouseEvent.CLICK,bringToFront);
animals[i].addEventListener(MouseEvent.CLICK,mc_play);
[Code] .....

Is there a way to set a flag when the spanish button is pressed? For example, pressing the spanish button will set spanish to true, and I could add some AS when a frame is reached that said something along the lines of:
if spanish=true play sound cow_esp else play sound cow_eng