$(function () {
	//头图
	$('.banner .slick').slick({
		arrows: false,
		dots: false,
		infinite: false,
		speed: 600,
		autoplay: true,
		autoplaySpeed: 800,
		lazyLoad: 'ondemand',
		slidesToShow: 1,
		slidesToScroll: 1
	});
	directionNav()
	function directionNav() {
		$('.banner .slick  .slick-arrow').each(function (e) {
			var $this = $(this)
			$this.text('');
			$(this).addClass('iconfont')
			if ($this.hasClass('slick-prev')) {
				$(this).addClass('icon-left')
			} else if ($this.hasClass('slick-next')) {
				$(this).addClass('icon-right')
			}
		})
	}
});