Get the key...

gistfile1.js

// set some variables to use later
var keys = 0;

//Get THEKEY
function OnTriggerEnter(theCollision : Collider){

 
	if(theCollision.gameObject.name == "THEKEY"){
		keys+=1;
		Debug.Log(keys);
		Debug.Log("YAY YOU GOT THE KEY");		
		UnityEngine.Object.Destroy(GameObject.Find("THEKEY"));
	}


	if(theCollision.gameObject.name == "THEDOOR"){
		if(keys == 1){
			Debug.Log("Open Door");
			UnityEngine.Object.Destroy(GameObject.Find("THEACTUALDOOR"));
			UnityEngine.Object.Destroy(GameObject.Find("THEDOOR"));
			keys-=1;
			Debug.Log(keys);
		}
		else {
			Debug.Log("NEED KEY FOOL");	
		}
	}