// Animation 360°
var pos = new Array(0, 186, 406, 634, 903, 1206, 1462 , 1697, 1894, 2054,
						  2190, 2304, 2413, 2527, 2656, 2815, 2984, 3177, 3394,
						  3605, 3791, 3928, 4033, 4181, 4347, 4512, 4688, 4870); // dernière valeur = largeur de l'image
var tete = new Array(126, 341, 556, 778, 1040, 1324, 1567 , 1790, 1978, 2117,
						  2250, 2364, 2469, 2582, 2716, 2866, 3050, 3258, 3476,
						  3680, 3852, 3986, 4117, 4290, 4467, 4633, 4799); // dernière valeur = largeur de l'image
var cpt = 1;
var timer;
function anim() {
	var e = document.getElementById('fond');
	var x = pos[cpt];
	var ptx = tete[cpt] - x;
	var left = 150 - ptx;
	var w = pos[cpt+1] - x;
	e.style.width = w + "px";
	e.style.left = left + "px";
	e.style.backgroundPosition = "-" + x + "px 0";
	//document.getElementById('debug').innerHTML = cpt + " " + x + " " + w;
	cpt = cpt + 1;
	if(cpt==pos.length-1) clearInterval(timer);
	//cpt %= (pos.length-1);
}
function start() {
	timer = setInterval(anim, 100);
}