// JavaScript Document
  var aryImages = new Array(10);

aryImages[0] = "images/large-image-01.jpg";
aryImages[1] = "images/large-image-02.jpg";
aryImages[2] = "images/large-image-03.jpg";
aryImages[3] = "images/large-image-04.jpg";
aryImages[4] = "images/large-image-05.jpg";
aryImages[5] = "images/large-image-06.jpg";
aryImages[6] = "images/large-image-07.jpg";
aryImages[7] = "images/large-image-08.jpg";
aryImages[8] = "images/large-image-09.jpg";
aryImages[9] = "images/large-image-10.jpg";


  for (i=0; i < aryImages.length; i++) {
    var preload = new Image();
    preload.src = aryImages[i];
  }
  
  function swap(imgIndex) {
    document['imgMain'].src = aryImages[imgIndex];
  }