Finding when a Ray isn't hitting anything?

Hellooo, UnityAnswers.

Currently, I'm making a script wherein it casts a ray ahead of the player checking if there's anything tagged "Active" within a small range. If there is, it disables the characters' abilities attached to a certain button, and makes said button open the door instead. The issue I'm having now is that once an Active object is found, I can't reverse the abilities getting disabled if the player moves away from the object.

The way I figure, I could get it to work if I could tell when the Ray isn't hitting anything, and reversing the disabling there. How would I do that? Or is there a better way?

The script that checks for an Active object ahead of the player:

static var canSkill = true;
static var canActivate = false;

function Update () {

    var hit : RaycastHit;

    if(Physics.Raycast (transform.position, transform.forward, hit, 2)){
        if(hit.collider.tag == "Active") {
            print ("Active");
            canSkill = false;
            canActivate = true;
        }
    }
}

Use "else":

if (Physics.Raycast...) {
   // hit
}
else {
   // no hit
}

It also would probably be better if you did

if (Physics.Raycast (transform.position, transform.forward, hit, 2) && hit.collider.tag == "Active") {