tf1

var colorStart : Color = Color.red;
var colorEnd : Color = Color.green;
var duration : float = 1.0;
var elapsed: float = 0.0;
var finished : boolean = false;
var animDurationInFrames : float = 0.4;


function Update () {

        if (elapsed < duration && finished == false) {
                renderer.material.color = Color.Lerp (colorStart, colorEnd, elapsed);
        } else {
                finished = true;
        }

		if (finished == true) {
				renderer.material.color = Color.Lerp (colorEnd, colorStart, elapsed);
		}

        if (gameObject.renderer.enabled && gameObject.renderer.enabled == true) {
                        elapsed = elapsed + (Time.deltaTime / animDurationInFrames);
        }

        if (gameObject.renderer.enabled == false) {
        	elapsed = 0.0;
        	finished = false;
        }

}