Change layer for symbol in code - HTML5 Canvas

@kglad  Thanks for all of  your help with this.  Greatly appreciated!

One last question on this thread.  How do I access the instance name of item in the following code, that is after the addChild??

var Lenses = [this.ConcaveSphereLens, this.ConvexSphereLens, this.ConcaveCylinderLens, this.ConvexCylinderLens, this.PrismLens, this.AccessoryLens];

	// Apply the same code for each lens MovieClip symbol in the array Lenses with a For Loop
for(var i = 0; i<Lenses.length; i++){	
	Lenses[i].on("mousedown", onMouseDown.bind(this));
	Lenses[i].on("pressmove", onMouseMove.bind(this));
	Lenses[i].on("pressup", onMouseUp.bind(this));
	Lenses[i].LFLensHolder = this.LFLensHolder;
	Lenses[i].lensParentLeft = this.lensParentLeft;
	Lenses[i].originX = Lenses[i].x;
	Lenses[i].originY = Lenses[i].y;
}

function onMouseDown(evt){
	var item = evt.currentTarget;
	item.offset = {x:0, y:0};
	var pt = item.parent.globalToLocal(evt.stageX, evt.stageY);
	item.offset.x = pt.x - item.x;
	item.offset.y = pt.y - item.y;
	item.drag = true;
}

function onMouseUp(evt){
	var item = evt.currentTarget;
	item.drag = false;
	var pt = item.localToLocal(item.dot.x, item.dot.y, item.LFLensHolder.hitBox);
	if(item.LFLensHolder.hitBox.hitTest(pt.x, pt.y) ){
		item.x = item.LFLensHolder.x;
		item.y = item.LFLensHolder.y;
		item.lensParentLeft.addChild(item);
		//console.log(item.parent);
		item.x-=item.lensParentLeft.x-9.5;
		item.y-=item.lensParentLeft.y-9.5;
		item.scale = 0.54;
 	}
}

function onMouseMove(evt){
	var item = evt.currentTarget;
	if (item.drag){
		var pt = item.parent.globalToLocal(evt.stageX, evt.stageY);
		item.x = pt.x - item.offset.x;
		item.y = pt.y - item.offset.y;
	}
}