screens = new Array(4);
screens[0] = new Image();
screens[0].src = "../images/wb/2.6 user preferences (f).png";
screens[1] = new Image();
screens[1].src = "../images/wb/2.6 user preferences (a).png";
screens[2] = new Image();
screens[2].src = "../images/wb/2.6 user preferences (s).png";
screens[3] = new Image();
screens[3].src = "../images/wb/2.6 user preferences (m).png";

function setImage()
{
  var temp = document.location.search;
  var lastPage = temp.substring (temp.indexOf("=")+1,temp.length);
  if (lastPage == "f")
    document.screen.src = screens[0].src;
  else if (lastPage == "a")
    document.screen.src = screens[1].src;
  else if (lastPage == "s")
    document.screen.src = screens[2].src;
  else if (lastPage == "m")
    document.screen.src = screens[3].src;
}