What is wrong with my CharController script?

var normalSpeed:float=6.0; private var speed:float=normalSpeed; var runSpeed:float=12.0; private var jumpSpeed:float=speed*1.7; var gravity:float=20.0; private var walkTime:int=0; private var moveDirection:Vector3=Vector3.zero; static var grounded:boolean=false; private var controller:CharacterController; private var flags:CollisionFlags;

function Start(){ animation.wrapMode=WrapMode.loop; animation["run"].layer=-1; animation["walk"].layer=-1; animation["idle"].layer=-1; animation.SyncLayer(-1); animation["jump"].layer=10; animation["jump"].wrapMode.Once; animation.SyncLayer(10); animation.Stop(); animation.Play("idle");

function FixedUpdate();{ if(grounded){ moveDirection=new Vector3(Input.GetAxis("Horizontal"),0,0); moveDirection*=speed; if (Input.GetButton("Jump")){ moveDirection.y=jumpSpeed; animation.CrossFade("jump"); }

} moveDirection.y-=gravity*Time.deltaTime; controller=GetComponet(CharacterController); flags=controller.Move(moveDirection*Time.deltaTime); grounded=(flags & CollisionFlags.CollidedBelow) !=0; if(Input.GetAxis("Horizontal")>.2 || Input.GetAxis("Horizontial")<-.2){ if(walkTime>40){ animation.CrossFade("run"); speed=runSpeed; }else{ walkTime++; animation.CrossFade("walk"); speed=normalSpeed; } jumpSpeed=speed*1.7; }else{ walkTime=0; animation.CrossFade("idle"); } }

@script RequireComponet(CharacterController)