Animation application problem

Hey,

I have 3 animations (walk, run and jump).
But when I save my script, it told me that error:
Assets/Standard Assets/Scripts/Camera Scripts/Movecharacter.js(51,42): BCE0019: 'animation' is not a member of 'Object'.

Here is the Movecharacter script :

Code (csharp):

1. #pragma strict
2.    
3.     var speed:float;
4.     var speedRun:float;
5.     var speedRotate:float;
6.     var gravity:float;
7.     var jumpspeed:float;
8.    
9.     private var controller:CharacterController;
10.     private var moveDirection:Vector3;
11.     private var deltaTime:float;
12.     private var characterContent;
13.     private var runAnim:boolean;
14.     private var run:boolean;
15.    
16.    
17.     function Start () {
18.         controller = GetComponent("CharacterController");
19.         characterContent = transform.Find("samuzai");
20.     }
21.    
22.     function Update () {
23.        
24.         deltaTime = Time.deltaTime;
25.         runAnim = false;
26.        
27.         if(controller.isGrounded){
28.    
29.             if(Input.GetKey(KeyCode.LeftShift)){
30.                 moveDirection = Vector3(0,0,Input.GetAxis("Vertical") * speedRun);
31.                 runAnim = true;
32.             }
33.             else{
34.                 moveDirection = Vector3(0,0,Input.GetAxis("Vertical") * speed);
35.             }
36.            
37.             if(Input.GetKey(KeyCode.UpArrow) || Input.GetKey(KeyCode.DownArrow)){  
38.                 if(!runAnim){
39.                     characterContent.animation.CrossFade("walk", 0.2);
40.                 }
41.                 else{
42.                     characterContent.animation.CrossFade("run", 0.2);
43.                 }
44.             }
45.             else{
46.                     characterContent.animation.CrossFade("idle", 0.2);
47.             }
48.             if(Input.GetKey(KeyCode.Space)){
49.            
50.                 moveDirection.y = jumpspeed;
51.                 characterContent.animation.CrossFade("jump", 0.2);
52.            
53.             }
54.         }
55.            
56.            
57.             moveDirection = transform.TransformDirection(moveDirection);
58.            
59.             transform.Rotate(Vector3(0,Input.GetAxis("Horizontal") * speedRotate * deltaTime,0));
60.            
61.             moveDirection.y -= gravity * deltaTime;
62.            
63.             controller.Move(moveDirection * deltaTime);
64.     }

Thanks