Third Person Melee Attack

I have javascript for first person melee attack, but it does not works on third person, can any body help me out with it, i need it working on third person. the code is just for calculating the distance but it doesnt work on third person: var TheDamage: int = 50; var Distance: float;

 function Update()
 {
     if (Input.GetButtonDown("Fire1"))
     {
         var hit: RaycastHit;
         if (Physics.Raycast (transform.position, transform.TransformDirection(Vector3.forward), hit))
         {
             Distance = hit.distance;
             hit.transform.SendMessage("ApplyDamage", TheDamage, SendMessageOptions.DontRequireReceiver);
         }
     }
 }