Add animations to 2D Gameplay Tutorial

Hi,
I am look the 2D Gameplay Tutorial (unity3d.com/support/resources/tutorials/2d-gameplay-tutorial), but i want to add 2 animations (kick ,attack), when I push Fire3 and Fire1.
I want that when I give a push to the key Fire3 or Fire1. the animation to automatic play and when finished to play enable idle.
Any idea, please?

Here the code with Fire3 only :

Code (csharp):

1. function Update () {
2. var controller : PlatformerController = GetComponent(PlatformerController);
3.  
4. // We are not falling off the edge right now
5. if (controller.GetHangTime() < hangTimeUntilFallingAnimation) {
6. // Are we moving the character?
7. if (controller.IsMoving())
8. {
9. if (Input.GetButton ("Fire2"))
10. animation.CrossFade ("run");
11. else
12. animation.CrossFade ("walk");
13. }
14. // Go back to idle when not moving
15. else
16. if (Input.GetButton ("Fire3"))
17. animation.CrossFade ("kick");
18. else
19. animation.CrossFade ("idle", 0.5);
20. }
21. --------------------------------------------------------------------------------
22.