public float fadeSpeed = 1.5f;            // Speed that the screen fades to and from white.
    private bool sceneStarting = true;        // Whether or not the scene is still fading in.

    public Color transparent;

    void Awake()
    {
        // Set the texture so that it is the the size of the screen and covers it.
        GetComponent<GUITexture>().pixelInset = new Rect(0f, 0f, Screen.width, Screen.height);

        transparent = Color.black;
        transparent.a = 0f;
    }

    void Update()
    {
        // If the scene is starting...
        if (sceneStarting)
            // ... call the StartScene function.
            StartScene();
    }


    void FadeToClear()
    {
        // Lerp the colour of the texture between itself and transparent.
        GetComponent<GUITexture>().color = Color.Lerp(GetComponent<GUITexture>().color, transparent, fadeSpeed * Time.deltaTime);
    }


    public void FadeToWhite()
    {
        // Lerp the colour of the texture between itself and white.
        GetComponent<GUITexture>().color = Color.Lerp(GetComponent<GUITexture>().color, Color.black, fadeSpeed * Time.deltaTime);
    }