Script Problems

How Can I make This code functional

var player : GameObject; 
var explosionRadius = 1;
var explosionPower = 1;
var explosionDamage = 100.0;
var damage = 10;
var enemyDamage : float=10f;

var explosionTime = 1.0;

function Start () {

    var explosionPosition = transform.position;
    var colliders : Collider[] = Physics.OverlapSphere (explosionPosition, explosionRadius);

    for (var hit in colliders) {
        if (!hit)
            continue;

        if (hit.rigidbody) {
            hit.rigidbody.AddExplosionForce(explosionPower, explosionPosition, explosionRadius, 3.0);

            var closestPoint = hit.rigidbody.ClosestPointOnBounds(explosionPosition);
            var distance = Vector3.Distance(closestPoint, explosionPosition);

            // The hit points we apply fall decrease with distance from the hit point
            var hitPoints = 1.0 - Mathf.Clamp01(distance / explosionRadius);
            hitPoints *= explosionDamage;

            // Tell the rigidbody or any other script attached to the hit object 
            // how much damage is to be applied!
                    // I modified This part of the code. 
            hit.gameObject.player.SendMessageUpwards("ApplyDamage", hitPoints, SendMessageOptions.DontRequireReceiver);
            hit.rigidbody.SendMessageUpwards("ApplyDamage", hitPoints, SendMessageOptions.DontRequireReceiver);

        }

    }

    // stop emitting ?
    if (particleEmitter) {
        particleEmitter.emit = true;
        yield WaitForSeconds(0.5);
        particleEmitter.emit = false;
    }

    // destroy the explosion
    Destroy (gameObject, explosionTime);
}

I get the error "Player is not a member of unity game object" Thanks In Advance!

Where you have

hit.gameObject.player

get rid of .player