Changing a Variable in a script from another Object

Hey guys, so i'm aware that this question has been asked a dozen times, but i can't seem to wrap my head around my problem. It's to do with 'Changing a Variable in a script from another Object'. My scripts concept is that you shoot at a crate and it gives you ammunition, the script that gets changed is on the gun's front where the amount of magazines variable 'magcount' is on a script named 'bluewave_shoot.js'. The actual script 'ammobox.js' is attached onto my ammunition box gameobject.

*The error i get is:* ![alt text][1]

*Here is my code:* //ammobox.js var effect : Transform; var guntoreload : GameObject; function OnCollisionEnter(col: Collision){ if (col.gameObject.tag == "bullet"){ guntoreload.GetComponent.bluewave_shoot().magcount = 20; Instantiate(effect, transform.position, transform.rotation); Destroy(this.gameObject, 0.1); } } *This is 'bluewave_shoot.js':* //Note: this is one half of the script only (The Public Var is there) public var magcount : int = 10; var bullet : Rigidbody; var power : float = 1500; var damage : float = 100; var reloadtime : float = 4; var magbulletcount : int = 21; var bulletcount : int = 0; var otherObj : GameObject; public var shootsound: AudioClip; private var reloadTimer: float = 0.0; function Start () { bulletcount = magbulletcount; } function OnGUI(){ if (bulletcount <= 0 && magcount > 0){ GUI.Label(new Rect (5,20,200,20),"Reloading..."); } else GUI.Label(new Rect (5,20,200,20),"Bullet's Left: " + bulletcount); GUI.Label(new Rect (5,40,200,20),"Round's Left: " + magcount); } function Update(){ if (reloadTimer > 0){ reloadTimer -= Time.deltaTime; if (reloadTimer <= 0){ bulletcount = magbulletcount; magcount--; } } Hope someone can help! Many Thanks [1]: /storage/temp/82321-capture.png