Script a script ????

i have a script which enables me to play a movie my question is which java script or c# script will be used so that it opens new scene automatically it ends
here is the script

using UnityEngine;
using System.Collections;
 
public class SlideShow : MonoBehaviour
{
    public Texture2D[] slides = new Texture2D[9];
    public float changeTime = 10.0f;
    private int currentSlide = 0;
    private float timeSinceLast = 1.0f;

    void Start()
    {
        guiTexture.texture = slides[currentSlide];
        guiTexture.pixelInset = new Rect(-slides[currentSlide].width/2, -slides[currentSlide].height/2, slides[currentSlide].width, slides[currentSlide].height);
        currentSlide++;
    }
 
    void Update()
    {
        if(timeSinceLast > changeTime && currentSlide < slides.Length)
        {
            guiTexture.texture = slides[currentSlide];
            guiTexture.pixelInset = new Rect(-slides[currentSlide].width/2, -slides[currentSlide].height/2, slides[currentSlide].width, slides[currentSlide].height);
            timeSinceLast = 0.0f;
            currentSlide++;
        }
        timeSinceLast += Time.deltaTime;
 
        if(currentSlide == slides.Length)
        {
            currentSlide = 0;
        }
 
 
    }

}

var video : Animation; //Set this through interface.
function Update () {
renderer.material.mainTexture.Play();
}