Select randomly x arrays and instantiate them

I created an array with 135 GameObjects, now, from that 135 GameObjects and from that 135 I want to randomly select 85 and spawn them, but how do I make to randomly choose 85 and spawn them |!!!I don’t want to spawn 2 times the same GameObject!!!| ← this is for real, I really don’t want to have repeated GameObjects because the GameObjects are the same the only thing that changes is the position. If you know how to do it please comment my script edited by you if you don’t mind.
thanks in advance.
#pragma strict

var bricks : GameObject [];

function Awake () 
{
	GameObject.Instantiate(bricks[Random.Range(0,bricks.Length)], transform.position, transform.rotation);
}

function Update () {

}

List seems difficult to use, but really it is easy and very flexible once you do some practicing with it. Please read my script carefully, follow the comments, cross-reference with the link I provided, and see if you do understand what is going on :

#pragma strict

// to use List in uJS
import System.Collections.Generic;
// --


var bricksToSpawn : int = 85;

var bricks : GameObject [];

var bricksList : List.< GameObject >; // declare a new list


function Start() 
{
	PopulateBricksList();
	
	ChooseRandomBricks();
}


function PopulateBricksList() 
{
	// declare a new list
	bricksList = new List.< GameObject >();
	
	// get the length of the built-in array
	var totalBricks : int = bricks.Length;
	
	// add each brick to the brickList
	for ( var i : int = 0; i < totalBricks; i ++ )
	{
		bricksList.Add( bricks *);*
  • }*
    }

function ChooseRandomBricks()
{

  • // choose a brick from the bricksList*

  • for ( var i : int = 0; i < bricksToSpawn; i ++ )*

  • {*

  •  // find the current length of the bricksList*
    
  •  var bricksRemaining : int = bricksList.Count;*
    
  •  // get a random number*
    
  •  var rndChoice : int = Random.Range( 0, bricksRemaining - 1 );*
    
  •  // instantiate that chosen brick*
    
  •  var cloneBrick : GameObject = Instantiate( bricksList[ rndChoice ], transform.position, transform.rotation );*
    
  •  // remove that brick from the list*
    
  •  bricksList.RemoveAt( rndChoice );*
    
  • }*
    }
    That link again : http://wiki.unity3d.com/index.php?title=Which_Kind_Of_Array_Or_Collection_Should_I_Use?
    scroll down to Generic List