How to make the left joystick fully control the movement?

I recently followed a tutorial to create player movement with the joysticks. It took me a while to work it into the game, but I finally managed it. The only problem is that the right stick controls rotation, which controls how the player moves. How can I make it so that when I move the joystick to the left, the player moves to the left? Here is my code:

 #pragma strict
 
 var speed : float = 3.0;
 var rotateSpeed : float = 3.0;
 var moveJoystick : Joystick;
 var rotateJoystick : Joystick;
  
 function Update () {
     var controller : CharacterController = GetComponent(CharacterController);
  
     // Rotate around y - axis
     var rotatePos = Input.GetAxis ("Horizontal") ? 
                        Input.GetAxis ("Horizontal") : joyStickInput(rotateJoystick);
     transform.Rotate(0, rotatePos * rotateSpeed, 0);
  
     // Move forward / backward
     var forward = transform.TransformDirection(Vector3.forward);
     var movePos = Input.GetAxis ("Vertical") ? 
                      Input.GetAxis ("Vertical") : joyStickInput(moveJoystick);
     var curSpeed = speed * movePos;
     controller.SimpleMove(forward * curSpeed);
 }
 function joyStickInput (joystick : Joystick) {
     var absJoyPos = Vector2 (Mathf.Abs(joystick.position.x),
                                    Mathf.Abs(joystick.position.y));
     var xDirection = (joystick.position.x > 0) ? 1 : -1;
     var yDirection = (joystick.position.y > 0) ? 1 : -1;
     return ( ( absJoyPos.x > absJoyPos.y) ? absJoyPos.x * xDirection : absJoyPos.y * yDirection);
 }
  
 @script RequireComponent(CharacterController)

And if anyone could help me find a tutorial for shooting a laser with the right joystick?