Newb question

 #pragma strict
 
 var Damage : int = 50;
 var Distance : float = 1.5;
 var hit : RaycastHit;
 
 function Update () 
 {
     if(Input.GetButtonDown("fire1"));
     {
         if(Physics.Raycast (transform.position, transform.TransformDirection(Vector3.forward), hit));
         {
             Distance == hit.distance;
             hit.transform.SendMessage("ApplyDamage", Damage, SendMessageOptions.DontRequireReceiver);
         }
     }
 } 

Errors : Unexpected token: if. and expecting :, found ';'.