if (document.images) {

  image1 = new Image;

  image2 = new Image;

  image3 = new Image;

  image4 = new Image;

  image5 = new Image;

  image1a = new Image;

  image2a = new Image;

  image3a = new Image;

  image4a = new Image;

  image5a = new Image;

  image11 = new Image;

  image12 = new Image;

  image13 = new Image;

  image14 = new Image;

  image15 = new Image;

  image16 = new Image;

  image17 = new Image;

  image18 = new Image;

    

  image1.src = 'backpack/1.jpg';

  image2.src = 'backpack/2.jpg';

  image3.src = 'backpack/3.jpg';

  image4.src = 'backpack/4.jpg';

  image5.src = 'backpack/5.jpg';

  image6.src = 'backpack/6.jpg';

  image7.src = 'backpack/2a.jpg';

  image8.src = 'backpack/3a.jpg';

  image9.src = 'backpack/4a.jpg';

  image10.src = 'backpack/5a.jpg';

  image11.src = 'backpack/11.jpg';

  image12.src = 'backpack/12.jpg';

  image13.src = 'backpack/13.jpg';

  image14.src = 'backpack/14.jpg';

  image15.src = 'backpack/15.jpg';

  image16.src = 'backpack/16.jpg';

  image17.src = 'backpack/17.jpg';

  image18.src = 'backpack/18.jpg';

  

} else {

  image1 = '';

  image2 = '';

  image3 = '';

  image4 = '';

  image5 = '';

  image6 = '';

  image7 = '';

  image8 = '';

  image9 = '';

  image10 = '';

  image11 = '';

  image12 = '';

  image13 = '';

  image14 = '';

  image15 = '';

  image16 = '';

  image17 = '';

  image18 = '';

 

  document.rollimg = '';

}