/* Swap Image Nav */
  var aryImages = new Array(2);

  aryImages[0] = "images/generations_1_lg.jpg";
  aryImages[1] = "images/generations_2_lg.jpg";
  aryImages[2] = "images/generations_3_lg.jpg";
  aryImages[3] = "images/generations_4_lg.jpg";
  aryImages[4] = "images/generations_5_lg.jpg";

  for (i=0; i < aryImages.length; i++) {
    var preload = new Image();
    preload.src = aryImages[i];
  }

  function swap(imgIndex) {
    document['imgMain'].src = aryImages[imgIndex];
  }