//导航下拉开始
$(document).ready(function(){
	  $('ul.navigationlist li').mousemove(function(){
	  		$(this).find('ul').slidedown(280);//you can give it a speed
	  });
	  $('ul.navigationlist li').mouseleave(function(){
	  		$(this).find('ul').slideup(280);
	  });
	  $("#logo_main").scrollfix({zindex:1000});
});
//导航下拉结束

/*====scrool插件 开始====*/
;(function($) {
	$.fn.scrollfix = function(options) {
		return this.each(function() {
			var opts = $.extend({}, $.fn.scrollfix.defaultoptions, options);
			var obj = $(this),
				base = this,
				selftop = 0,
				selfleft = 0,
				totop = 0,
				parentoffsetleft = 0,
				parentoffsettop = 0,
				outerheight,
				outerwidth,
				objwidth = 0,
				placeholder = jquery('<div>'), //创建一个jquery对象
				optstop = opts.distancetop, //定义到顶部的高度
				endfix = 0; //开始停止固定的位置

			var originalposition;
			var originaloffsettop;
			var originalzindex;
			var lastoffsetleft = -1;
			var isunfixed = true;
			//如果没有找到节点，不进行处理
			if (obj.length <= 0) {
				return;
			}
			if (lastoffsetleft == -1) {
				originalzindex = obj.css('z-index');
				position = obj.css('position');
				originalposition = obj.css('position');

				originaloffsettop = obj.css('top');
			}

			var zindex = obj.css('zindex');
			if (opts.zindex != 0) {
				zindex = opts.zindex;
			}
			//获取相对定位或者绝对定位的父类
			var parents = obj.parent();
			var position = parents.css('position');
			while (!/^relative|absolute$/i.test(position)) { //检测浮动元素的父类元素定位为'relative'或者'absolute',是的话退出，否则的话，执行循环，继续寻找它的父类
				parents = parents.parent();
				position = parents.css('position');
				if (/^body|html$/i.test(parents[0].tagname)) break; //假如父类元素的标签为body或者html，说明没有找到父类为以上的定位，退出循环
			}

			var ie6 = !-[1, ] && !window.xmlhttprequest; //兼容ie6
			var resizewindow = false;

			function resetscroll() {
				setunfixed();
				selftop = obj.offset().top; //对象距离顶部高度
				selfleft = obj.offset().left; //对象距离左边宽度
				outerheight = obj.outerheight(); //对象高度
				outerheight = parsefloat(outerheight) + parsefloat(obj.css('marginbottom').replace(/auto/, 0));
				outerwidth = obj.outerwidth(); //对象外宽度
				objwidth = obj.width();
				var documentheight = $(document).height(); //文档高度
				var starttop = $(opts.starttop), //开始浮动固定对象
					startbottom = $(opts.startbottom),
					tobottom, //停止滚动位置距离底部的高度
					scrollheight; //对象滚动的高度

				//计算父类偏移值
				if (/^body|html$/i.test(parents[0].tagname)) { //当父类元素非body或者html时，说明找到了一个父类为'relative'或者'absolute'的元素，得出它的偏移高度
					parentoffsettop = 0, parentoffsetleft = 0;
				} else {
					parentoffsetleft = parents.offset().left, parentoffsettop = parents.offset().top;
				}

				// 计算父节点的上边到顶部距离
				// 如果 body 有 top 属性, 消除这些位移
				var bodytotop = parseint(jquery('body').css('top'), 10);
				if (!isnan(bodytotop)) {
					optstop += bodytotop;
				}
				//计算停在底部的距离
				if (!isnan(opts.endpos)) {
					tobottom = opts.endpos;
				} else {
					tobottom = parsefloat(documentheight - $(opts.endpos).offset().top);
				}
				//计算需要滚动的高度以及停止滚动的高度
				scrollheight = parsefloat(documentheight - tobottom - optstop), endfix = parsefloat(scrollheight - outerheight);
				//计算顶部的距离值
				if (starttop[0]) {
					var starttopoffset = starttop.offset(),
						starttoppos = starttopoffset.top;
					selftop = starttoppos;
				}
				if (startbottom[0]) {
					var startbottomoffset = startbottom.offset(),
						startbottompos = startbottomoffset.top,
						startbottomheight = startbottom.outerheight();
					selftop = parsefloat(startbottompos + startbottomheight);
				}

				totop = selftop - optstop;
				totop = (totop > 0) ? totop : 0;

				var selfbottom = documentheight - selftop - outerheight;
				//如果滚动停在底部的值不为0，并且自身到底部的高度小于上面这个值，不执行浮动固定
				if ((tobottom != 0) && (selfbottom <= tobottom)) {
					return;
				}

			}
			function setunfixed() {
				if (!isunfixed) {
					lastoffsetleft = -1;
					placeholder.css("display", "none");
					obj.css({
						'z-index': originalzindex,
						'width': '',
						'position': originalposition,
						'left': '',
						'top': originaloffsettop,
						'margin-left': ''
					});
					obj.removeclass('scrollfixed');
					isunfixed = true;
				}
			}

			function onscroll() {
				lastoffsetleft = 1;
				var scrolltop = $(window).scrolltop();
				if (opts.bottom != -1) {
					scrolltop = scrolltop + $(window).height() - outerheight - opts.bottom;
				}
				if (scrolltop > totop && (scrolltop < endfix)) {
					if (ie6) { //ie6则使用这个样式
						obj.addclass(opts.baseclassname).css({
							"z-index": zindex,
							"position": "absolute",
							"top": opts.bottom == -1 ? scrolltop + optstop - parentoffsettop : scrolltop - parentoffsettop,
							"bottom": 'auto',
							"left": selfleft - parentoffsetleft,
							'width': objwidth
						})
					} else {
						obj.addclass(opts.baseclassname).css({
							"z-index": zindex,
							"position": "fixed",
							"top": opts.bottom == -1 ? optstop : '',
							"bottom": opts.bottom == -1 ? '' : opts.bottom,
							"left": selfleft,
							"width": objwidth
						});
					}
					placeholder.css({
						'height': outerheight,
						'width': outerwidth,
						'display': 'block'
					}).insertbefore(obj);
				} else if (scrolltop >= endfix) {
					obj.addclass(opts.baseclassname).css({
						"z-index": zindex,
						"position": "absolute",
						"top": endfix - parentoffsettop + optstop,
						'bottom': '',
						"left": selfleft - parentoffsetleft,
						"width": objwidth
					});
					placeholder.css({
						'height': outerheight,
						'width': outerwidth,
						'display': 'block'
					}).insertbefore(obj)
				} else {
					obj.removeclass(opts.baseclassname).css({
						"z-index": originalzindex,
						"position": "static",
						"top": "",
						"bottom": "",
						"left": ""
					});
					placeholder.remove()
				}
			}
			var timer = 0;
			// if (isunfixed) {
			resetscroll();
			// }
			$(window).on("scroll", function() {
				if (timer) {
					cleartimeout(timer);
				}
				timer = settimeout(onscroll, 0);
			});
			// 当发现调整屏幕大小时，重新执行代码
			$(window).on("resize", function() {
				if (timer) {
					cleartimeout(timer);
				}
				timer = settimeout(function() {
					isunfixed = false;
					resetscroll();
					onscroll();
				}, 0);
			});
		})
	}
	$.fn.scrollfix.defaultoptions = {
		starttop: null, //滑到这个位置顶部时开始浮动，默认为空
		startbottom: null, //滑到这个位置末端开始浮动，默认为空
		distancetop: 0, //固定在顶部的高度
		endpos: 0, //停靠在底部的位置，可以为jquery对象
		bottom: -1, //底部位置
		zindex: 0, //z-index值
		baseclassname: 'scrollfixed' //开始固定时添加的类
	};
})(jquery);
/*====scrool插件 结束====*/


/*==! lazy load 1.9.1 - mit license - copyright 2010-2013 mika tuupola ==*/
!function(a,b,c,d){var e=a(b);a.fn.lazyload=function(f){function g(){var b=0;i.each(function(){var c=a(this);if(!j.skip_invisible||c.is(":visible"))if(a.abovethetop(this,j)||a.leftofbegin(this,j));else if(a.belowthefold(this,j)||a.rightoffold(this,j)){if(++b>j.failure_limit)return!1}else c.trigger("appear"),b=0})}var h,i=this,j={threshold:0,failure_limit:0,event:"scroll",effect:"show",container:b,data_attribute:"original",skip_invisible:!0,appear:null,load:null,placeholder:"data:image/png;base64,ivborw0kggoaaaansuheugaaaaeaaaabcayaaaaffcsjaaaaaxnsr0iars4c6qaaaarnqu1baacxjwv8yquaaaajcehzcwaadsqaaa7eazurdhsaaaansurbvbhxyzh8+pb/aaffa0nnpuclaaaaaelftksuqmcc"};return f&&(d!==f.failurelimit&&(f.failure_limit=f.failurelimit,delete f.failurelimit),d!==f.effectspeed&&(f.effect_speed=f.effectspeed,delete f.effectspeed),a.extend(j,f)),h=j.container===d||j.container===b?e:a(j.container),0===j.event.indexof("scroll")&&h.bind(j.event,function(){return g()}),this.each(function(){var b=this,c=a(b);b.loaded=!1,(c.attr("src")===d||c.attr("src")===!1)&&c.is("img")&&c.attr("src",j.placeholder),c.one("appear",function(){if(!this.loaded){if(j.appear){var d=i.length;j.appear.call(b,d,j)}a("<img />").bind("load",function(){var d=c.attr("data-"+j.data_attribute);c.hide(),c.is("img")?c.attr("src",d):c.css("background-image","url('"+d+"')"),c[j.effect](j.effect_speed),b.loaded=!0;var e=a.grep(i,function(a){return!a.loaded});if(i=a(e),j.load){var f=i.length;j.load.call(b,f,j)}}).attr("src",c.attr("data-"+j.data_attribute))}}),0!==j.event.indexof("scroll")&&c.bind(j.event,function(){b.loaded||c.trigger("appear")})}),e.bind("resize",function(){g()}),/(?:iphone|ipod|ipad).*os 5/gi.test(navigator.appversion)&&e.bind("pageshow",function(b){b.originalevent&&b.originalevent.persisted&&i.each(function(){a(this).trigger("appear")})}),a(c).ready(function(){g()}),this},a.belowthefold=function(c,f){var g;return g=f.container===d||f.container===b?(b.innerheight?b.innerheight:e.height())+e.scrolltop():a(f.container).offset().top+a(f.container).height(),g<=a(c).offset().top-f.threshold},a.rightoffold=function(c,f){var g;return g=f.container===d||f.container===b?e.width()+e.scrollleft():a(f.container).offset().left+a(f.container).width(),g<=a(c).offset().left-f.threshold},a.abovethetop=function(c,f){var g;return g=f.container===d||f.container===b?e.scrolltop():a(f.container).offset().top,g>=a(c).offset().top+f.threshold+a(c).height()},a.leftofbegin=function(c,f){var g;return g=f.container===d||f.container===b?e.scrollleft():a(f.container).offset().left,g>=a(c).offset().left+f.threshold+a(c).width()},a.inviewport=function(b,c){return!(a.rightoffold(b,c)||a.leftofbegin(b,c)||a.belowthefold(b,c)||a.abovethetop(b,c))},a.extend(a.expr[":"],{"below-the-fold":function(b){return a.belowthefold(b,{threshold:0})},"above-the-top":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-screen":function(b){return a.rightoffold(b,{threshold:0})},"left-of-screen":function(b){return!a.rightoffold(b,{threshold:0})},"in-viewport":function(b){return a.inviewport(b,{threshold:0})},"above-the-fold":function(b){return!a.belowthefold(b,{threshold:0})},"right-of-fold":function(b){return a.rightoffold(b,{threshold:0})},"left-of-fold":function(b){return!a.rightoffold(b,{threshold:0})}})}(jquery,window,document);
/*==lazy load 1.9.1 结束==*/