var browser = false;
function swap(img1, img2)
{
  if (browser)
  {
    document.images[img1].src = eval(img2 + ".src");
  }
}
function loadImg()
{
  bg_img = new Array(15);
  logo_img = new Array(15);
  logo_dim = new Array(15);
  for(i = 0; i < 15; i++)
  {
    bg_img[i] = new Image;
  }
  var PickOne=Math.floor(Math.random()*12);
  bg_img[0].src = "images/bg_ent1.gif";
  logo_img[0] = "images/eras_logo_0.png";
  logo_dim[0] = "width: 202px; height: 48px;"
  bg_img[1].src = "images/bg_ent2.gif";
  logo_img[1] = "images/eras_logo_0.png";
  logo_dim[1] = "width: 202px; height: 48px;"
  bg_img[2].src = "images/bg_cage.gif";
  logo_img[2] = "images/eras_logo_1.png";
  logo_dim[2] = "width: 116px; height: 84px;"
  bg_img[3].src = "images/bg_tos.gif";
  logo_img[3] = "images/eras_logo_1.png";
  logo_dim[3] = "width: 116px; height: 84px;"
  bg_img[4].src = "images/bg_tmp.gif";
  logo_img[4] = "images/eras_logo_2.png";
  logo_dim[4] = "width: 157px; height: 60px;"
  bg_img[5].src = "images/bg_wok.gif";
  logo_img[5] = "images/eras_logo_2.png";
  logo_dim[5] = "width: 157px; height: 60px;"
  bg_img[6].src = "images/bg_tap.gif";
  logo_img[6] = "images/eras_logo_2.png";
  logo_dim[6] = "width: 157px; height: 60px;"
  bg_img[7].src = "images/bg_tng1.gif";
  logo_img[7] = "images/eras_logo_3.png";
  logo_dim[7] = "width: 160px; height: 75px;"
  bg_img[8].src = "images/bg_tng2.gif";
  logo_img[8] = "images/eras_logo_3.png";
  logo_dim[8] = "width: 160px; height: 75px;"
  bg_img[9].src = "images/bg_voy.gif";
  logo_img[9] = "images/eras_logo_4.png";
  logo_dim[9] = "width: 160px; height: 61px;"
  bg_img[10].src = "images/bg_ds9.gif";
  logo_img[10] = "images/eras_logo_5.png";
  logo_dim[10] = "width: 139px; height: 73px;"
  bg_img[11].src = "images/bg_adm.gif";
  logo_img[11] = "images/eras_logo_5.png";
  logo_dim[11] = "width: 139px; height: 73px;"
  bg_img[12].src = "images/bg_fut1.gif";
  logo_img[12] = logo_img[PickOne];
  logo_dim[12] = logo_dim[PickOne];
  bg_img[13].src = "images/bg_fut2.gif";
  logo_img[13] = logo_img[PickOne];
  logo_dim[13] = logo_dim[PickOne];
  bg_img[14].src = "images/bg_ptng.gif";
  logo_img[14] = "images/eras_logo_3.png";
  logo_dim[14] = "width: 160px; height: 75px;";
}
if (document.images) browser = true;
if (browser) loadImg();
var Era=Math.floor(Math.random()*15);