<!--
var elem;
var duration = 500;
var steps = 40;
var delay = 500;
function fadeIn(id) {
  elem = document.getElementById(id);
  elem.style.display = 'block';
  for (i = 0; i <= 1; i += (1 / steps)) {
    setTimeout("setOpacity(" + i + ")", i * duration);
  }
}
function fadeOut(id) {
  elem = document.getElementById(id);
  for (i = 0; i <= 1; i += (1 / steps)) {
    setTimeout("setOpacity(" + (1-i) + ");", i * duration);
  }
  setTimeout("elem.style.display = 'none';",duration);
}
function setOpacity(lvl) {
  elem.style.opacity = lvl;
  elem.style.MozOpacity = lvl;
  elem.style.KhtmlOpacity = lvl;
  elem.style.filter = "alpha(opacity=" + (lvl * 100) + ");";
}
//-->