function slideFolio(col){
	var x = ((col-1)*-480)
	var folioChange = new Fx.Style('folio', 'left', {duration:750});
	folioChange.start(x);
}
var slide = 1;
var state = "play";
function boucle(){
	if(slide == 3) {slide = 1;}
	else {slide = slide +1;}
	slideFolio(slide);
}
function precedent(){
	if(state == 'play'){clearInterval(intval);state = "pause";}
	if(slide == 1) {slide = 3;}
	else {slide = slide -1;}
	slideFolio(slide);
}
function play(){
	intval = setInterval ( "boucle()", 3000 );
	state = "play";
}
function pause(){
	clearInterval(intval);
	state = "pause";
}
function suivant(){
	if(state == 'play'){clearInterval(intval);state = "pause";}
	if(slide == 3) {slide = 1;}
	else {slide = slide +1;}
	slideFolio(slide);
}