// Initialisation
var next_img = 0;

function galerie() {
        new Effect.Opacity(document.getElementById('grand_format'),{from:1.0,to:0.0,duration: 5.0,afterFinish:function(){nextimage();} }); 
       //self.setTimeout("nextimage()",time);    
}
function nextimage() {
        next_img++;
        ShowIt(next_img);
}


function Diaporama() {
	// Configuration
	ScaleRatioUp = 100; // Grossissement de l'aperçu (%)	
	// Initialisation
	Imgs = document.getElementById("defilement").getElementsByTagName("img");
	ScaleRatioDown = eval(eval(100/ScaleRatioUp)*100);
	document.getElementById('grand_format').src = Imgs[0].src;	
        galerie();

}

// Affichage en grand format de l'image
function ShowIt(Id) {
        if(!document.getElementById('img_'+Id))
        {       next_img=0;
                Id=0;
        } 
         
	document.getElementById('grand_format').src = Imgs[Id].src;
        new Effect.Appear(document.getElementById('grand_format'),{from:0 , to:1, duration: 5.0,afterFinish:function(){galerie();} }); 
}