Can someone Please help me with this scrip

Can someone please help me withe script:

var projectil : Rigidbody;
var timer : float = 1;
var speed : float = 1;

function Update () 
{
timer -= Time.deltaTime;
}


  if(Input.touchCount > 0)
{
    var touch: Touch = Input.touches[0]; 
 
    if(touch.phase == TouchPhase.Began && guiTexture.HitTest(touch.position))
 
    {
         if ( timer <= 0 )
 {
 timer -= timer += speed;
 Instantiate(projectil ,transform.position ,transform.rotation);
 }
     } 
}

That closing brace on line 8 is your problem. Move that puppy to line 24.