var delais=1500;
var div_cur = null;
var image_initial = '';
var image_name = '';
var image_extend = '';
var image_cur = 1;
var image_num=1;
var on_off=0;

function init_div(div,image,nb) {
div_cur = div;
image_initial = div_cur.style.background;
var img= image.split('.');
if (img.length > 1) {
	image_name = img[0].substr(0,img[0].length-1);
	image_extend = '.'+img[1];
	image_num=nb;
	image_cur=1;
	if (on_off == 0) {
		on_off=1;
		boucle(image_name);
	}
}
}

function fin_div() {
div_cur.style.background=image_initial;
image_name='';
on_off=0;
}

function boucle(image) {
	image_cur +=1;
	if (image_name.length>1 && image_name == image) {
		if (image_cur > image_num) image_cur=1;
		div_cur.style.background = 'transparent url('+image_name+image_cur+image_extend+') no-repeat center';
	    setTimeout('boucle(\"'+image+'\")',delais);
	}
}