I have a tile in my map which has an animation:
var animationSheet = new ig.AnimationSheet('media/animation.png', 16, 16 );
ig.game.backgroundAnims = 
{ 'media/tilesheet.png': 
    {
        7: new ig.Animation( animationSheet , 0.15, [1,2,3,4,5,6,7,8] )
    }
}

My map have two layers:
- one is above the player and is called "above"
- the other is below the player and is called "below"

I want do something like the following in ig.Animation's draw function:
ig.Animation.inject({
    draw: function()
    {
        if( isInAboveLayer ) // do one thing
        else if( isInBelowLayer ) // do something else
    }
}

And so my question is:

How can I find out what layer of the map the animation is in so that each instance of ig.Animation has this information?