function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity,fadetime) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 5;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+","+fadetime+")", parseInt(fadetime/20));
    }
  }
}

function fadeOut(objId,opacity,fadetime) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      setOpacity(obj, opacity);
      opacity -= 5;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+","+fadetime+")", parseInt(fadetime/20));
    }
  }
}

function crossFade(objId1,objId2,fadetime) {
	fadeIn(objId2,0,fadetime);
	fadeOut(objId1,100,fadetime);
}

function initElement(objId) {
  obj = document.getElementById(objId);
  setOpacity(obj, 0);
  obj.style.visibility = 'visible';
  fadeIn(objId,0);
}