if (document.images) {
  image1 = new Image;
  image2 = new Image;
  image3 = new Image;
  image4 = new Image;
  image5 = new Image;
  image6 = new Image;
  image1.src = '../images\/sc13.jpg';
  image2.src = '../images\/sc14.jpg';
  image3.src = '../images\/sc15.jpg';
  image4.src = '../images\/sc16.jpg';
  image5.src = '../images\/sc17.jpg';
  image6.src = '../images\/sc18.jpg';
} else {
  image1 = '';
  image2 = '';
  image3 = '';
  image4 = '';
  image5 = '';
  image6 = '';
  document.rollimg1 = '';
}