MonoBehaviour.Invoke

function Invoke (methodName : String, time : float) : void

Description

Invokes the method methodName in time seconds.

JavaScript
    // Launches a projectile in 2 seconds
var projectile : Rigidbody;
Invoke("LaunchProjectile", 2);
function LaunchProjectile () {
var instance : Rigidbody = Instantiate(projectile);
instance.velocity = Random.insideUnitSphere * 5;
}