Setting up a timer for rate of fire on a instantiation

i cannot figure out why this code is not working. I am adding rate of fire to my instantiation. I want it to limit the rate of fire to 1 ball every 2 seconds. Right now it doesn't even shoot.

    public var deathBall: Rigidbody;
    public var ballSpeed: float = 25.0;
    private var reloadTime: float;
    private var canShoot: boolean;

    function Start()
    {
    reloadTime = 0.0;
    canShoot = true;
    }

    function Update () 
    {
        if(canShoot == true)    
        {
        MouseClick();
        }
        reloadTime += Time.deltaTime;
            if(reloadTime >= 2.0)
        {
        canShoot = true;
        reloadTime = 0.0;
        }
            if(reloadTime <= 2.0)
        {
        canShoot = false;
        }
    }

    function MouseClick()
    {

        if(Input.GetButtonDown("Fire1"))
    {
        Instantiate();
        canShoot = false;
    }   

    }

    function Instantiate()
    {

        var newBall : Rigidbody = Instantiate(deathBall, transform.position, transform.rotation);

        newBall.velocity = transform.TransformDirection(Vector3(0, 0, ballSpeed));
        Physics.IgnoreCollision(newBall.collider, transform.root.collider);

    }

I figured it out!

function Update () 
{
    if(canShoot == true)    
    {
    MouseClick();
    }
    reloadTime += Time.deltaTime;
    if(reloadTime >= 1.0)
    {
    canShoot = true;
    reloadTime = 0.0;
    }
}