why is my character suddenly move when a scene is loaded?

I wanna get rid of this thing. my character enters a portal and I clicked ok to load the level and the moment my character lands on the scene, it start to move. I just want it to stand still on the spawn point and move only if I told it so or click somewhere in the map. do you know whats the problem.. thanks here is the code:

var smooth:float; // Determines how quickly object moves towards position var isWalking : boolean; var lastP; var move; var pressed: boolean; var standing : boolean; var objectP ; private var targetPosition:Vector3;

function Start() { animation.Stop(); animation.Play("idle"); // this stops Unity from playing the character's default animation. standing = spawnPointScript.standing; objectP = spawnPointScript.objectP; }

function Update () { pressed = false;

 if(pressed== false)
 {
 if(Input.GetKeyDown(KeyCode.Mouse1))
 {
     smooth=5;
     var playerPlane = new Plane(Vector3.up, transform.position);
     var ray = Camera.main.ScreenPointToRay (Input.mousePosition);
     var hitdist = 0.0;
  
     
     if (playerPlane.Raycast (ray, hitdist)) {
         var targetPoint = ray.GetPoint(hitdist);
         targetPosition = ray.GetPoint(hitdist);
     
         var targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
         transform.rotation = targetRotation;
        
         }
         

}
move =transform.position = Vector3.MoveTowards(transform.position, targetPosition, Time.deltaTime*smooth); if(lastP != move) { if(!isWalking){ isWalking= true; animation.Play("walk");

                 }
             }
  else 
       {
            if(isWalking)
             {
                 isWalking = false;
                 animation.Play("idle");
             }    
         }     
 lastP =move;}
 pressed = true;
 
 
 

}