what is wrong with my animation Code and if their anther easier way to animate from animation to anther it will be helpful if any one Could help when i jump for the first time the character jumps with nice 4 animations but the second time only the last animation which work i stayed half hour looking at the script but no Result this is all my jump animations please anyone help

void Start(){
 animation["jump2fall"].layer = 4;
 animation["fall"].layer = 6;
 animation["fall"].wrapMode = WrapMode.Loop;
 animation["run2jump"].speed=2;
 animation["jump1"].speed = 2;
 run = false;
 started = false;
 animation["jumploop"].layer = 5;
 animation ["jump1"].layer =2;
 animation ["run2jump"].layer = 1;
 animation ["run2jump"].wrapMode = WrapMode.Once;
 animation ["jump1"].wrapMode = WrapMode.Once;
 animation ["jumploop"].wrapMode = WrapMode.Loop;
 animation ["jump2fall"].wrapMode = WrapMode.Once;
    }
void FixedUpdate(){
if (run && Input.GetButtonDown("Jump")&& !started ) {
 animation.CrossFade("run2jump");
 run = false;
 animation["run2jump"].enabled = false;
 started = true;
 }
 if(!started3 && falling  && !animation.IsPlaying("jumploop") && jumping && !Grounded){
 animation.CrossFade("jump2fall");
 animation["jump2fall"].enabled = false;
 started3 = true;
 }
 if(started3){
 animation.Stop ("jump2fall");
 }
 void Update ()
 {
 if(Grounded){
 animation.Stop ("fall");
 jumping = false;
 animation.Stop("jumploop");
 animation["run2jump"].enabled = false;
 animation["jump1"].enabled = true;
 toloop = false;
 animation["fall"].enabled = false;
 animation["jump2fall"].enabled = false;
 falling = false;
 }
        }

 if(Gup){ // if Going up
 animation["jump2fall"].enabled = true;
 animation["run2jump"].enabled = true;
 }

 if(!Grounded){
 animation["fall"].enabled = true;
 }
 if(animation.IsPlaying("jumploop") && Grounded){
 animation.Stop("jumploop");
 animation.CrossFade("idle");
 }
 if(falling){
 animation.Stop("jumploop");
 }
    if(falling){
 animation["run2jump"].enabled = false;
 animation["jump1"].enabled = false;
 animation["jumploop"].enabled = false;
 }
 if(Gup){
 animation["run2jump"].enabled = true;
 animation["jump1"].enabled = true;
 animation["jumploop"].enabled = true;
 }
 if(animation.IsPlaying ("jumploop"))
 {
 animation["run2jump"].enabled = false;
 animation["jump1"].enabled = false;
 }
     void LateUpdate ()
 {
 if (!animation.IsPlaying ("jump1") && toloop && Gup) {
 started2 = false;
 animation.CrossFade ("jumploop");
 jumping = true;
 } 
 if(started3 && falling && !animation.IsPlaying("jump2fall") ){
 animation["jump2fall"].enabled = false;
 animation.CrossFade("fall");
 started3 = false;
 if(animation.IsPlaying("fall")){Debug.Log("faal");}
 }

 }
}