var currentSlide = new Array(0, 0);

function prevSlide(sn) {
	if (currentSlide[sn] == 0) {
		ns = $("#featuredBlock_" + sn + " ul").size() - 1;
	} else {
		ns = currentSlide[sn] - 1;
	}
	$("#featuredBlock_" + sn + " ul.slide_" + currentSlide[sn]).hide();
	$("#featuredBlock_" + sn + " ul.slide_" + ns).show();
	currentSlide[sn] = ns;
	fixHeight(sn);
}

function nextSlide(sn) {
	if (currentSlide[sn] == $("#featuredBlock_" + sn + " ul").size() - 1) {
		ns = 0;
	} else {
		ns = currentSlide[sn] + 1;
	}
	$("#featuredBlock_" + sn + " ul.slide_" + currentSlide[sn]).hide();
	$("#featuredBlock_" + sn + " ul.slide_" + ns).show();
	currentSlide[sn] = ns;
	fixHeight(sn);
}

function fixHeight(sn) {
	hgt = $("#featuredBlock_" + sn).height();
	$(".productImagesNav").each(function() {
		$(this).css("padding-top", ((hgt-40)/2)+"px");
		$(this).css("padding-bottom", ((hgt-40)/2)+"px");
	});
	$("#featuredBlock_" + sn + " ul li").each(function() {
		$(this).css("line-height", hgt+"px");
	});
}