Error line 22! Help. i dont know why?

function Start () {

 // Select the first weapon
 SelectWeapon(0);

}

function Update () {

 // Did the user press fire?
 if (Input.GetButton ("Fire1"))
     BroadcastMessage("Fire");

 if (Input.GetKeyDown("1")) {
     SelectWeapon(0);
 }   
 else if (Input.GetKeyDown("2")) {
     SelectWeapon(1);
 }   
 else if (Input.GetKeyDown("3")) {
     if (gameObject("AssultRifle").SetActiveRecursively(true));{
     SelectWeapon(2);
     }
     else if (gameObject("AssultRifle").SetActiveRecursively(false));{
     SelectWeapon(null);
     }

}