function changer(nb_images,rnd)
		{
			var random =Math.floor(Math.random()*nb_images);
			if(random == rnd )
			{
				if(random<nb_images)
				 random++;
				 else
				 random--;
			} 
			if(images.length == random)
				random--;
			fadeIn('defilement',0,100,25);
			document.getElementById('defilement').style.background='url('+ images[random] +')';
			setTimeout("changer("+nb_images+","+random+")",4000);
			setTimeout("fadeOut('defilement',100,0,25)",3750);
		}
		
function setOpacity(obj, opacity) {
	  opacity = (opacity == 100)?99.999:opacity;
	  
	  obj.style.filter = "alpha(opacity:"+opacity+")";
	  
	  obj.style.KHTMLOpacity = opacity/100;
	  
	  obj.style.MozOpacity = opacity/100;
	  
	  obj.style.opacity = opacity/100;
}
		
		
function fadeIn(objId,opacity,fin,speed) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= fin) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+","+fin+","+speed+")", speed);
    }
  }
}

function fadeOut(objId,opacity,fin,speed) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= fin) {
      setOpacity(obj, opacity);
      opacity -= 10;
      window.setTimeout("fadeOut('"+objId+"',"+opacity+","+fin+","+speed+")", speed);
    }
  }
}
	
function changerLang(lang)
	{
			var ancienne = "";
			if(lang == "FR")
				ancienne = "EN";
			else
				ancienne = "FR";
			var currentLocation =  document.location.href;
			newLocation = currentLocation.replace(ancienne,lang);
			location.href = newLocation;

	}