var nbPhoto_bandeau=9;
var intervalleEntre=1;
var tempsApparition=0.7;

var tabImage = new Array();
var cptPhoto_bandeau=nbPhoto_bandeau;

<!-- ************************** on Réinitialise le tableau ******************************* -->
for(i=0;i<nbPhoto_bandeau;i++)
{
	eval("var imgNB"+i+"=new Image();");
	eval("var imgC"+i+"=new Image();");
	eval("imgNB"+i+".src='http://www.domaine-des-coutures.com/images/site/accueil_"+i+"_0.jpg';"); 
	eval("imgC"+i+".src='http://www.domaine-des-coutures.com/images/site/accueil_"+i+"_1.jpg';"); 

	tabImage[i]=i;
	changeOpacity(0, "div_accueil_"+i+"_in");
	document.getElementById("div_accueil_"+i+"_out").style.backgroundImage = "url(http://www.domaine-des-coutures.com/images/site/accueil_"+i+"_0.jpg)";
}

<!-- ************************** on déclenche la séquence ***************************** -->
for(i=0;i<nbPhoto_bandeau;i++) setTimeout("newBandeau();",intervalleEntre*1000*(i+1));
setTimeout("imgTransition('div_logo_accueil', 'http://www.domaine-des-coutures.com/images/site/logo_accueil.jpg');",intervalleEntre*1000*(3));


function newBandeau()
{
	<!-- ***************** Tirage au sort ******************* -->
	randomNum=Math.floor(Math.random()*cptPhoto_bandeau);
	randomPhoto=tabImage[randomNum];
	if(cptPhoto_bandeau == 1) cptPhoto_bandeau=nbPhoto_bandeau;
	else
	{
		tabImage.splice(randomNum,1);
		cptPhoto_bandeau--;
	}

	<!-- ***************** On affecte le bandeau image ******************* -->
	imgPath="http://www.domaine-des-coutures.com/images/site/accueil_"+randomPhoto+"_1.jpg";
	imgTransition("div_accueil_"+randomPhoto+"_in", imgPath);
}

function imgTransition(dividin, imagefile)
{
	var timer = 0;

	changeOpacity(0, dividin);
	document.getElementById(dividin).style.backgroundImage = "url(" + imagefile + ")";
	document.getElementById(dividin).style.visibility= "visible";
	for(i = 0; i <= 100; i++)
	{
		setTimeout("changeOpacity(" + i + ",'" + dividin + "')",(timer *tempsApparition*10));
		timer++;
	}
}