Simple rotating content children

gistfile1.js

/* -------------------------------------- */
//Simple Rotator

var $rotatorContainers = $("[data-rotator]");
$rotatorContainers.each(function () {

	var $container = $(this),
		$items = $container.children($container.attr("data-rotator")),
		itemTotal = $items.length - 1,
		autoplay = $container.attr("data-rotator-autoplay");

	if (autoplay != undefined) var cycleInterval = setInterval(cycleItems, 5000);

	if (itemTotal === 0) return;

	$container
	.children(".nav")
	.removeClass("js-hide")
	.click(function (event, triggered) {

		if (!triggered && autoplay != undefined) clearTimeout(cycleInterval);

		var $currentItem = $items.filter(".current"),
			currentIndex = $items.index($currentItem),
			$this = $(this);

		if ($this.hasClass("prev")) {
			if (currentIndex === 0) changeItem(itemTotal);
			if (currentIndex > 0) changeItem(currentIndex - 1);
		} else if ($this.hasClass("next")) {
			if (currentIndex === itemTotal) changeItem(0);
			if (currentIndex < itemTotal) changeItem(currentIndex + 1);
		}
	});

	function changeItem(index) {
		$items
		.removeClass("current")
		.eq(index)
		.addClass("current");
	}

	function cycleItems() {
		$container
		.children(".next")
		.trigger("click", true);
	}

});