(function($) {
	/**
	 * scrollContent 滚动文章内容
	 * kangkai &hong
	 * 2017-10-23 15:38:14
	 */
	$.fn.scrollContent = function(options) {
		var settings = {
			speed: 1,
			delay: 3,
			imgDelay:5,
			callback: function() {
				//console.log('scroll finished');
			}
		};
		$.extend(settings, options);
		var $this = $(this);
		var $container = $this.find('.content_container');
		var $content = $this.find('.content');
		var containerHeight = $container.height();
		var contentHeight = $content.height();
		//debugger;
		if($container.find('.content').hasClass('imgContent')){
			setTimeout(settings.callback, $this.find('.img').length*settings.imgDelay*1000);
		}else{
			if (containerHeight >= contentHeight) {
				settings.callback();
				return;
			}
		}		var heightToScroll = contentHeight - containerHeight;
		// console.log(contentHeight, containerHeight)
		var duration = heightToScroll * settings.speed;
		if($container.find('.content').hasClass('imgContent')){
			//setTimeout(settings.callback, settings.delay * 1000);
			//$container.find('.imgContent').css('position','static');
		}else{
			$content.delay(settings.delay * 1000)
			.animate({
				top: -heightToScroll + 'px'
			}, duration, 'linear', settings.callback);
		}		// 滚动至文章顶部
		$.fn.scrollContent.backToTop = function() {
			$content.css('top', 0);
		}
	};
	/*
	 * 滚动图片 (及图片标题)
	 * kangkai & lihong
	 * 2017-10-24 15:27:31*/
		$.fn.scrollImgs = function(options) {
		var settings = {
			speed: 1,
			delay: 2
		};
		$.extend(settings, options);
		var $this = $(this);
		var $imgContent = $this.find('.imgContent');
		var $bigImg = $this.find('.bigImg');
		var $imgs = $this.find('.imgs');
		var $imgsContainer = $this.find('.imgs_container');
		var imgsCount = $this.find('.img').length;
		var imgWidth = $imgsContainer.width();
		$imgs.find('.img').eq(0).css('opacity',1);
		$imgs.find('.img').eq(0).siblings().css('opacity',0);
		//alert($imgContent.length)
		var currentImg = 0;
		$imgContent.text($imgs.find('.img_caption').eq(currentImg).text());
		//$imgs.width(imgsCount * 100 + '%');
		$imgs.width('100%');
		//$imgs.css('opacity', 0);
		if (imgsCount <= 0) {
			return;
		}
		if (!$this.currentImgIndex) {
			$this.currentImgIndex = 0;
		}
		if (!$this.scrollImgsTimer) {
			$this.scrollImgsTimer = setInterval(showNextImg, settings.delay * 1000);
		}
		function showNextImg() {
			$imgs.find('.img').css('opacity', 0);
			if (++currentImg > imgsCount - 1) {
				currentImg = 0;
			}
			/*$imgs.animate({
				left: -imgWidth * currentImg + 'px'
			}, settings.speed * 0, function() {
				// console.log('img switched');
			});*/
			$imgs.find('.img').eq(currentImg).css('opacity',1);
			$imgs.find('.img').css('transition','all 1s');
			$imgContent.text($imgs.find('.img_caption').eq(currentImg).text());
		}
		// 停止滚动
		$.fn.scrollImgs.stopScroll = function() {
			clearInterval($this.scrollImgsTimer);
		}
	};
})(jQuery);