Unity can't find Character Motor and max forwad speed

Hello,

My problem is easy :

Im creating in first person controler, sprint. That's the code :

using UnityEngine; using System.Collections;

public class Gracz : MonoBehaviour {

 void Update ()
 {
     if (Input.GetKey (KeyCode.W))
     {
         gameObject.GetComponent<CharacterMotor>().movement.maxForwardSpeed = 6;
     }
     if (Input.GetKey (KeyCode.W) & Input.GetKey(KeyCode.LeftShift))
     {
         GameObject.GetComponent<CharacterMotor>().movement.maxForwardSpeed = 50;
     }
 }

}

Unity is illuminating on red color : "CharacterMotor", "movement" and "maxForwardSpeed". Im creating it in C#. I think that there can be problem, that CharacterMotor is in JavaScript, but I really can't change my program to Java, becouse I got really good tutorial in C#. Sorry for my bad english.