/* -------Better Image Fader---------- */
var lastimageid = null;
function fadeImageIn(imageId) {
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.style.visibility = 'visible';
  fadeIn(imageId, 0);
  if(lastimageid != null)
    fadeOut(lastimageid, 100);
  
  lastimageid = imageId;
}

function fadeImageOut(imageId) {
  image = document.getElementById(imageId);
  setOpacity(image, 100);
  fadeOut(imageId, 100);
  
}

function setOpacity(obj, opacity) {

if(typeof obj.style.MozOpacity != "undefined")
{
  opacity = (opacity == 100)?99.999:opacity;
  obj.style.MozOpacity = opacity/100;	
} 
else if(typeof obj.style.opacity != "undefined")
{
  obj.style.opacity = opacity/100;
} 
else if(typeof obj.style.KhtmlOpacity != "undefined")
{
  obj.style.KhtmlOpacity = opacity/100;
} 
else if(typeof obj.style.filter != "undefined") 
{
  obj.style.filter = "alpha(opacity:"+opacity+")";
}

}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 5;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 30);
    }
  }
}

function fadeOut(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      setOpacity(obj, opacity);
      opacity -= 5;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 30);
    }
    else
      obj.style.visibility = 'hidden';
  }
}