GameOver Scene

Okay so my problem is i dont know how could i make when my charachter comes to 0 hp it says Game Over. I have made new scene about gameover but i dont know what and where should i type in this script to load scene, Can u help me without telling me to read pdf files etc?

THIS IS MY SCRIPT

public var speed : float = 5.0;

var isOffScreen : boolean = false; public var offscreenDotRange : float = 0.7;

var isVisible : boolean = false; public var visibleDotRange : float = 0.8; // ** between 0.75 and 0.85 (originally 0.8172719)

var isInRange : boolean = false;

public var followDistance : float = 24.0; public var maxVisibleDistance : float = 25.0;

public var reduceDistAmt : float = 3.1;

private var sqrDist : float = 0.0;

public var health : float = 100.0; public var damage : float = 20.0;

public var enemySightedSFX : AudioClip;

private var hasPlayedSeenSound : boolean = false;

private var colDist : float = 5.0; // raycast distance in front of enemy when checking for obstacles

function Start() { if ( thePlayer == null ) { thePlayer = GameObject.Find( "Player" ).transform; }

 theEnemy = transform;

}

function Update() { // Movement : check if out-of-view, then move CheckIfOffScreen();

 // if is Off Screen, move
 if ( isOffScreen )
 {
    MoveEnemy();

    // restore health
    RestoreHealth();
 }
 else
 {
    // check if Player is seen
    CheckIfVisible();

    if ( isVisible )
    {
      // deduct health
      DeductHealth();

      // stop moving
      StopEnemy();

      // play sound only when the Man is first sighted
      if ( !hasPlayedSeenSound )
      {
       audio.PlayClipAtPoint( enemySightedSFX, thePlayer.position ); 
      }
      hasPlayedSeenSound = true; // sound has now played
    }
    else
    {
      // check max range
      CheckMaxVisibleRange();

      // if far away then move, else stop
      if ( !isInRange )
      {
       MoveEnemy();
      }
      else
      {
       StopEnemy();
      }

      // reset hasPlayedSeenSound for next time isVisible first occurs
      hasPlayedSeenSound = false;
    }
 }

}

function DeductHealth() { // deduct health health -= damage * Time.deltaTime;

 // check if no health left
 if ( health <= 0.0 )
 {
    health = 0.0;
    Debug.Log( "YOU ARE OUT OF HEALTH !" );

    // Restart game here!
    // Application.LoadLevel( "GameOver" );
 }

}

function RestoreHealth() { // deduct health health += damage * Time.deltaTime;

 // check if no health left
 if ( health >= 100.0 )
 {
    health = 100.0;
    //Debug.Log( "HEALTH is FULL" );
 }

}

function CheckIfOffScreen() { var fwd : Vector3 = thePlayer.forward.normalized; var other : Vector3 = (theEnemy.position - thePlayer.position).normalized;

 var theProduct : float = Vector3.Dot( fwd, other );

 if ( theProduct < offscreenDotRange )
 {
    isOffScreen = true;
 }
 else
 {
    isOffScreen = false;
 }

}

function MoveEnemy() { // Check the Follow Distance CheckDistance();

 // if not too close, move
 if ( !isInRange )
 {
    rigidbody.velocity = Vector3( 0, rigidbody.velocity.y, 0 ); // maintain gravity

    // --
    // Old Movement
    //transform.LookAt( thePlayer );   
    //transform.position += transform.forward * speed * Time.deltaTime;
    // --

    // New Movement - with obstacle avoidance
    var dir : Vector3 = ( thePlayer.position - theEnemy.position ).normalized;
    var hit : RaycastHit;

    if ( Physics.Raycast( theEnemy.position, theEnemy.forward, hit, colDist ) )
    {
      //Debug.Log( " obstacle ray hit " + hit.collider.gameObject.name );
      if ( hit.collider.gameObject.name != "Player" && hit.collider.gameObject.name != "Terrain" )
      {         
       dir += hit.normal * 20;
      }
    }

    var rot : Quaternion = Quaternion.LookRotation( dir );

    theEnemy.rotation = Quaternion.Slerp( theEnemy.rotation, rot, Time.deltaTime );
    theEnemy.position += theEnemy.forward * speed * Time.deltaTime;

    // --
 }
 else
 {
    StopEnemy();
 }

}

function StopEnemy() { transform.LookAt( thePlayer );

 rigidbody.velocity = Vector3.zero;

}

function CheckIfVisible() { var fwd : Vector3 = thePlayer.forward.normalized; var other : Vector3 = ( theEnemy.position - thePlayer.position ).normalized;

 var theProduct : float = Vector3.Dot( fwd, other );

 if ( theProduct > visibleDotRange )
 {
    // Check the Max Distance
    CheckMaxVisibleRange();

    if ( isInRange )
    {
      // Linecast to check for occlusion
      var hit : RaycastHit;

      if ( Physics.Linecast( theEnemy.position + (Vector3.up * 1.75) + theEnemy.forward, thePlayer.position, hit ) )
      {
       Debug.Log( "Enemy sees " + hit.collider.gameObject.name );

       if ( hit.collider.gameObject.name == "Player" )
       {
           isVisible = true;
       }
      }
    }
    else
    {
      isVisible = false;
    }
 }
 else
 {
    isVisible = false;
 }

}

function CheckDistance() { var sqrDist : float = (theEnemy.position - thePlayer.position).sqrMagnitude; var sqrFollowDist : float = followDistance * followDistance;

 if ( sqrDist < sqrFollowDist )
 {
    isInRange = true;
 }
 else
 {
    isInRange = false;
 }  

}

function ReduceDistance() { followDistance -= reduceDistAmt; }

function CheckMaxVisibleRange() { var sqrDist : float = (theEnemy.position - thePlayer.position).sqrMagnitude; var sqrMaxDist : float = maxVisibleDistance * maxVisibleDistance;

 if ( sqrDist < sqrMaxDist )
 {
    isInRange = true;
 }
 else
 {
    isInRange = false;
 }  

}

function OnGUI() { GUI.Box( Rect( (Screen.width * 0.5) - 60, Screen.height - 35, 120, 25 ), "Health : " + parseInt( health ).ToString() ); }