Accesing boolean in a other script?

How can i acess the isFalling boolean in another script and check if its true or false?

#pragma strict

var rotationSpeed = 100;
var jumpHeight = 8;

var isFalling = false;

function Update ()

{

//Handle ball rotation.
var rotation : float = Input.GetAxis ("Horizontal") * rotationSpeed;
rotation *= Time.deltaTime;
rigidbody.AddRelativeTorque (Vector3.back * rotation);

if (Input.GetButton("Jump") && isFalling == false)
{
	rigidbody.velocity.y = jumpHeight;
	isFalling = true;
}

}

function OnCollisionStay ()
{
isFalling = false;
}

http://docs.unity3d.com/412/Documentation/ScriptReference/index.Accessing_Other_Game_Objects.html