// require jQuery
jQuery(document).ready(function() {
	var listTotal = jQuery('#right_banner_inner ul li').length;
	if(listTotal >= 4) { // banners.length >= 4
		jQuery('#right_banner_inner ul').carouFredSel({
			auto: true,
			direction: "up",
			width: 155,
			height: 221,
			items: {
				visible: 3,
				width: 153,
				height: 73
			},
			scroll: {
				items: 1
			},
			auto: {
				pauseDuration: 4000
			},
			prev: "#right_banner_up",
			next: "#right_banner_down"
		});
	}else{
		// banners.length <= 3
		jQuery("#right_banner_up").css({
			visibility: "hidden"
		});
		jQuery("#right_banner_down").css({
			visibility: "hidden"
		});
	}
});