Assigning a sound when I drag and drop a object

1

Here’s my code below, I want a sound to play when I drop a puzzle piece into the right puzzle tile. Im still very new to this Actionscript so any help will be greatly appreciated.

var targetTile:MovieClip;
var total:Number = 0;

//********Make Target Tiles Invisible **********
TopLeftTile_mc.visible=false;
TopCentTile_mc.visible=false;
TopRightTile_mc.visible=false;
MidLeftTile_mc.visible=false;
MidCentTile_mc.visible=false;
MidRightTile_mc.visible=false;
BotLeftTile_mc.visible=false;
BotCentTile_mc.visible=false;
BotRightTile_mc.visible=false;
//Winner_mc.visible=false;
//********End of Group **********

//Top Puzzle******
TopLeftPuz_mc.buttonMode = true;

TopLeftPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
TopLeftPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

TopCentPuz_mc.buttonMode = true;

TopCentPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
TopCentPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

TopRightPuz_mc.buttonMode = true;

TopRightPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
TopRightPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);
//Middle Puzzle******
MidLeftPuz_mc.buttonMode = true;

MidLeftPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
MidLeftPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

MidCentPuz_mc.buttonMode = true;

MidCentPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
MidCentPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

MidRightPuz_mc.buttonMode = true;

MidRightPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
MidRightPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

//Bottom Puzzle******
BotLeftPuz_mc.buttonMode = true;

BotLeftPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
BotLeftPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

BotCentPuz_mc.buttonMode = true;

BotCentPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
BotCentPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

BotRightPuz_mc.buttonMode = true;

BotRightPuz_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragImage);
BotRightPuz_mc.addEventListener(MouseEvent.MOUSE_UP, dropImage);

//Drag & Drop**

function dragImage(event:MouseEvent):void {
event.target.startDrag();
event.target.alpha=.5;
this.setChildIndex(DisplayObject(event.target), this.numChildren-1);
}

function dropImage(event:MouseEvent):void {
event.target.stopDrag();

switch(event.target.name) {
        //*****************Top Puzzle**********************
        case "TopLeftPuz_mc":
        targetTile = TopLeftTile_mc;
        break;
        
        case "TopCentPuz_mc":
        //trace('pencils');
        targetTile = TopCentTile_mc;
        break;
        
        case "TopRightPuz_mc":
        //trace('pencils');
        targetTile = TopRightTile_mc;
        break;
        //*****************Mid Puzzle**********************
        case "MidLeftPuz_mc":
        targetTile = MidLeftTile_mc;
        break;
        
        case "MidCentPuz_mc":
        //trace('pencils');
        targetTile = MidCentTile_mc;
        break;
        
        case "MidRightPuz_mc":
        //trace('pencils');
        targetTile = MidRightTile_mc;
        break;
        //*****************Bottom Puzzle**********************
        case "BotLeftPuz_mc":
        targetTile = BotLeftTile_mc;
        break;
        
        case "BotCentPuz_mc":
        //trace('pencils');
        targetTile = BotCentTile_mc;
        break;
        
        case "BotRightPuz_mc":
        //trace('pencils');
        targetTile = BotRightTile_mc;
        break;
        
        default:
        break;
}

if(targetTile.hitTestPoint(event.target.x,event.target.y)) 
{
event.target.alpha = 0;
event.target.visible = false;
targetTile.visible = true;
total++;
}else{  
      event.target.alpha = 1; 
     }
     //if(total == 9){
    //Winner_mc.visible = true;
//}

}