var timeout;
var preload = new Image();
var img_context;

function doscroll(img, bestthumb, indice) {
	if (img) img_context = img;
	else img = img_context;
	
	img_src = img.src;
	if (indice == 20) {
		unscroll(img, bestthumb);
	} else {
		img_src = img_src.replace(/img\d+/, 'img'+(indice + 1));
		img_src = img_src.replace(/\d+\.jpg/, (indice + 1)+'.jpg');
		img.src = img_src;
		indice++;
		timeout = window.setTimeout("doscroll(null, "+bestthumb+", "+indice+")", 2000);
		
		// on charge l'image suivante
		if (indice < 20) {
			img_src = img_src.replace(/img\d+/, 'img'+(indice + 1));
			img_src = img_src.replace(/\d+\.jpg/, (indice + 1)+'.jpg');
			preload.src = img_src;
		}
	}
}

function unscroll(img, bestthumb) {
	window.clearTimeout(timeout);
	img_src = img.src;
	img_src = img_src.replace(/img\d+/, 'img'+bestthumb);
	img_src = img_src.replace(/\d+\.jpg/, bestthumb+'.jpg');
	img.src = img_src;
}

function cc(mark) {
	if (document.getElementById("cc")) {
		document.getElementById("cc").src = "cc.php?marqueur="+mark;
	}
}