$(document).ready(function () {
	var accordeon = $(".imgBox > ol");

	accordeon.find("ol").hide();
	accordeon.find('li').each(function () {
		if ($(this).children("ol").length) {
			$(this).addClass("closed");
			$(this).click(function (event) {
				event.stopPropagation();
				activer($(this));
			});
		}
		else {
			$(this).click(function (event) {
				event.stopPropagation();
			});
		}
	});
});

function activer(element) {
	var liste = element.children("ol");
	if (element.hasClass("closed")) {
		element.removeClass("closed");
		element.addClass("opened");
		liste.slideDown("fast");
	}
	else {
		liste.slideUp("fast", function() {
			element.addClass("closed");
			element.removeClass("opened");	
		});
	}
}