var browser = false;
function swap(img1, img2)
{
  if (browser)
  {
    document.images[img1].src = eval(img2 + ".src");
  }
}
function loadImg()
{
  bg_img = new Array(39);
  logo_img = new Array(39);
  logo_dim = new Array(39);
  for(i = 0; i < 39; i++)
  {
    bg_img[i] = new Image;
  }
  var PickOne=Math.floor(Math.random()*39);
  bg_img[0].src = "images/background.jpg";
  bg_img[1].src = "images/background2.jpg";
  bg_img[2].src = "images/background3.jpg";
  bg_img[3].src = "images/background4.jpg";
  bg_img[4].src = "images/background5.jpg";
  bg_img[5].src = "images/background6.jpg";
  bg_img[6].src = "images/background7.jpg";
  bg_img[7].src = "images/background8.jpg";
  bg_img[8].src = "images/background9.jpg";
  bg_img[9].src = "images/background10.jpg";
  bg_img[10].src = "images/background11.jpg";
  bg_img[11].src = "images/background12.jpg";
  bg_img[12].src = "images/background13.jpg";
  bg_img[13].src = "images/background14.jpg";
  bg_img[14].src = "images/background15.jpg";
  bg_img[15].src = "images/background16.jpg";
  bg_img[16].src = "images/background17.jpg";
  bg_img[17].src = "images/background18.jpg";
  bg_img[18].src = "images/background19.jpg";
  bg_img[19].src = "images/background20.jpg";
  bg_img[20].src = "images/background21.jpg";
  bg_img[21].src = "images/background22.jpg";
  bg_img[22].src = "images/background23.jpg";
  bg_img[23].src = "images/background24.jpg";
  bg_img[24].src = "images/background25.jpg";
  bg_img[25].src = "images/background26.jpg";
  bg_img[26].src = "images/background27.jpg";
  bg_img[27].src = "images/background28.jpg";
  bg_img[28].src = "images/background29.jpg";
  bg_img[29].src = "images/background30.jpg";
  bg_img[30].src = "images/background31.jpg";
  bg_img[31].src = "images/background32.jpg";
  bg_img[32].src = "images/background33.jpg";
  bg_img[33].src = "images/background34.jpg";
  bg_img[34].src = "images/background35.jpg";
  bg_img[35].src = "images/background36.jpg";
  bg_img[36].src = "images/background37.jpg";
  bg_img[37].src = "images/background38.jpg";
  bg_img[38].src = "images/background39.jpg";
}
if (document.images) browser = true;
if (browser) loadImg();
var Era=Math.floor(Math.random()*39);