Switch statements executing at the same time

The code checks for a collision and then switches between the six frame depending of the actual frame, if the actual frame is "noDamage" it goes to the next frame, ect.

public function onTick(timerEvent:TimerEvent):void

                    {

                              gameClock.addToValue(25);

                              if(Math.random()<0.01)

                              {

                                        var randomY:Number = Math.floor(Math.random() * 300) + 50;

                                        var newEnemy:Enemy = new Enemy(400,randomY);

                                        army.push(newEnemy);

                                        addChild(newEnemy);

                                        gameScore.addToValue(10);

                              }

                              blade.x = mouseX;

                              blade.y = mouseY;

                              var gadjetHasBeenHit:Boolean = false;

            for each(var enemy:Enemy in army)

                              {

                                        if(PixelPerfectCollisionDetection.isColliding(jail,enemy,this,true))

                                  {

                                                  var desiredFrame:String = "noDamage";

                                                  var desiredFrame1:String = "damage_1";

                                                  var desiredFrame2:String = "damage_2";

                                                  var desiredFrame3:String = "damage_3";

                                                  var desiredFrame4:String = "damage_4";

                                                  var desiredFrame5:String = "damage_5";

                                                  switch(jail.currentLabel)

                                                  {

                                                            case "noDamage":

                                                                jail.gotoAndStop(desiredFrame1);

                                                                break;

                                                            case "damage_1":

                                                                jail.gotoAndStop(desiredFrame2);

                                                                break;

                                                            case "damage_2":

                                                                jail.gotoAndStop(desiredFrame3);

                                                                break;

                                                            case "damage_3":

                                                                jail.gotoAndStop(desiredFrame4);

                                                                break;

                                                            case "damage_4":

                                                                jail.gotoAndStop(desiredFrame5);

                                                                break;

                                                     }

                                           trace("Enemy collided with the jail");

                                  }break;

}