var duration = 1500;  /* 1000 millisecond fade = 1 sec */
var steps = 50;       /* number of opacity intervals   */
var delay = 1800;     /* 5 sec delay before fading out */


function fade() 
{
	Jajax.sendRequest('/ajax/offredefilant' , new DataStore() , successLoad );	
}

function successLoad(resp , args) 
{	
	fadeOut('titre_annonces_dynamiques' ,escape( resp.titre ));
	fadeOut('texte_annonces_dynamiques' ,escape( resp.mission ));
	fadeOut('bouton_lire_plus' ,escape(resp.link) );
	setTimeout("fade()", 20000);	
}

function fadeIn(element , texte )
{
$(element).innerHTML = unescape(texte);
  for (i = -1; i <= 1.3; i += (1 / steps)) 
  {
    setTimeout("setOpacity( '" + element+ "' , " + i + ")", i * duration);
  }
  
}

function fadeOut(element, texte) 
{
  for (i = 0; i <= 1.1; i += (1 / steps)) 
  {
    setTimeout("setOpacity( '" + element+ "' ," + (1 - i) + ")", i * duration);
  }
  setTimeout("fadeIn('" + element+ "', \""+texte+"\"  )", delay);
  
}

function setOpacity(id , level)
{
var element = $(id);
  element.style.opacity = level;
  element.style.MozOpacity = level;
  element.style.KhtmlOpacity = level;
  element.style.filter = "alpha(opacity=" + (level * 100) + ");";
}