var ehang = {};
	
	//loading函数 
	//arr [要加载的资源地址数组]  callback [需要处理的回调函数]
	ehang.loading = function(arr,callBack){
		var startTime = new Date().getTime();
		var currentTime = 0;
		var n = 0;
		for (var i = 0, len = arr.length; i < len; i++) {
			var img = new Image;
			img.src = arr[i];
			img.onload = function() {
				if (n == len-1) {
					console.log(n);
					$("#loading").fadeOut();
						currentTime = new Date().getTime();
						console.log(currentTime-startTime);
						if( typeof(callBack)  == "function"){
						callBack();
					}
				}
				n++;
			}
			img.onerror = function() {
				n++;
				console.log('资源'+arr[i]+'加载失败了');
			}
		}
	}
	
	
	//检测当前浏览器是不是IE浏览器 
	ehang.isIE = function(){
		
		if ((navigator.userAgent.indexOf('MSIE') >= 0) && (navigator.userAgent.indexOf('Opera') < 0)) {
			return true;
		}
		return false;
	}
	
	
	//设置cookie
	ehang.setCookie = function(cname, cvalue, exdays){
	   
	    var d = new Date();
	    d.setTime(d.getTime() + (exdays*24*60*60*1000));
	    var expires = "expires="+d.toUTCString();
	    document.cookie = cname + "=" + cvalue + "; " + expires;
	}
	
	
	//获取cookie
	ehang.getCookie = function(name) {
		
		var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
		if (arr = document.cookie.match(reg))
			return unescape(arr[2]);
		else
			return null;
	}
	
	
	//清楚cookie
	ehang.clearCookie = function(name){
		setCookie(name, "", -1); 
	}
	
	
	//回到顶部
	ehang.goTop = function(){
		
	}
	
	//设置语言版本为中文
	ehang.langCN = function(){
		ehang.setCookie('morenLang', 'cn');
		alert(111111);
		location.reload();
	}
	
	ehang.langEN = function(){
		ehang.setCookie('morenLang', 'en');
		location.reload();
	}
	
	//浏览器语言版本检测
	//中文返回1
	//英文和其他返回2
	ehang.browserLanguage = function(){
		var type = navigator.appName;
		if (type == "Netscape") {
			var lang = navigator.language;
		} else {
			var lang = navigator.userlanguage;
		}
		var lang = lang.substr(0, 2);
		if (lang == "en") {
			return 2;
		} else if (lang == "zh") {
			return 1;
		} else {
			return 2;
		}
	}

	//判断是不是edge
	ehang.browserType = function(){  
	      var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串  
	      var isOpera = userAgent.indexOf("OPR") > -1;      									//是不是欧鹏浏览器
	      var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("OPR") == -1;	//谷歌浏览器
	      var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Version") > -1; //苹果浏览器
	      var isFirefox = userAgent.indexOf("Firefox") > -1; 										//判断是否Firefox浏览器  
	      var isEdge = userAgent.indexOf("Edge") > -1;
	      var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 || userAgent.indexOf("rv:11.0") > -1;    //IE7 8 9 10 11
	      	
	    	if(isIE){  

	    		return "Ie";
	    		var fIEVersion = 0;
	            var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
	            var reIE11 = new RegExp("rv:(\\d+\\.\\d+)");
	            if(reIE11.test(userAgent)){
	           		fIEVersion = parseInt(RegExp["$1"]);
	           		return fIEVersion;
	            }else{
		            reIE.test(userAgent);  
		            fIEVersion = parseInt(RegExp["$1"]); 
		            return fIEVersion;
		        }
	        }
			if (isFirefox) {
				return "Firefox";
			}
			if (isOpera) {
				return "Opera";
			}
			if (isSafari) {
				return "Safari";
			}
			if (isChrome) {
				return "Chrome";
			}
			if (isEdge) {
				return "Edge";
			}
	}

	ehang.useragent = function(){
		var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
		alert(userAgent);
		document.getElementById("text").innerHTML = userAgent;
	}
	
	//固定二级导航
	ehang.fixedSubMeun = function(){
		var subMenu = $("#subMenu");
		var isFixed = false;
		$(window).on('scroll', function() {
			var scrollTop = $(window).scrollTop();
			if (!isFixed) {
				if (scrollTop >= 50) {
					subMenu.css({
						"position": "fixed",
						"top": 0,
						'z-index': 2
					});
					isFixed = true;
				}
			}
			if (scrollTop < 50) {
				subMenu.css({
					"position": "absoulte",
					"top": 50
				});
				isFixed = false;
			}
		});
	}
	
	//产品概览页面中，四个等分视频播放
	ehang.slideMenu=function(){
	  var sp,st,t,m,sa,l,w,gw,ot;
	  return{
	    destruct:function(){
	        if(m){
	          clearInterval(m.htimer);
	          clearInterval(m.timer);
	        }
	    },
	    build:function(sm,sw,mt,s,sl,h){
	      sp=s; 
	      st=sw; 
	      t=mt;
	      m=document.getElementById(sm);
	      sa=m.getElementsByTagName('li');
	      l=sa.length; 
	      w=m.offsetWidth; 
	      gw=w/l;
	      ot=Math.floor((w-st)/(l-1)); 
	      var i=0;
	      for(i;i<l;i++){
	        s=sa[i]; 
	        s.style.width=gw+'px'; 
	        this.timer(s)
	      }
	      if(sl!=null){
	        m.timer=setInterval(function(){
	          slideMenu.slide(sa[sl-1])
	        },t)}
	    },
	    timer:function(s){
	      s.onmouseover=function(){
	        clearInterval(m.htimer);
	        clearInterval(m.timer);
	        m.timer = setInterval(function(){
	          slideMenu.slide(s)
	        },t);
	        //console.log($(this).find('.mask_b').html());
	        $(this).find('.mask_b').hide();
	        //console.log($(this).find('.mask_b').attr("style"));
	        //
	        console.log("在这里添加东西");
	//      $("#stg_cec8_1")
	        $(this).find("video")[0].play();
	//      $("#stg_sec8_txt").fadeOut();
			$("#stg_sec8_txt").hide();
	    }
	      s.onmouseout=function(){
	        clearInterval(m.timer);
	        clearInterval(m.htimer);
	        m.htimer=setInterval(function(){
	          slideMenu.slide(s,true)
	        },t);
	        //console.log($(this).find('.mask_b').html());
	       $(this).find('.mask_b').show();
	        $(this).find("video")[0].pause();
	       //console.log($(this).find('.mask_b').attr("style"));
	        $("#stg_sec8_txt").fadeIn();
	     }
	
	     s.onclick=function(){
	      clearInterval(m.timer);
	        clearInterval(m.htimer);
	        m.htimer=setInterval(function(){
	          slideMenu.slide(s,true)
	        },t);
	        //console.log($(this).find('.mask_b').html());
	       $(this).find('.mask_b').show();
	       $(this).find("video")[0].pause();
	        $("#stg_sec8_txt").fadeIn();
	     }
	    },
	    slide:function(s,c){
	      var cw=parseInt(s.style.width);
	      if((cw<st && !c) || (cw>gw && c)){
	        var owt=0; var i=0;
	        for(i;i<l;i++){
	          if(sa[i]!=s){
	            var o,ow; var oi=0; o=sa[i]; ow=parseInt(o.style.width);
	            if(ow<gw && c){
	              oi=Math.floor((gw-ow)/sp); 
	              oi=(oi>0)?oi:1; 
	              o.style.width=(ow+oi)+'px';
	              //console.log(o);
	            //console.log(o.style.width);
	            }else if(ow>ot && !c){
	              oi=Math.floor((ow-ot)/sp); 
	              oi=(oi>0)?oi:1; 
	              o.style.width=(ow-oi)+'px';
	              //console.log(o);
	              //console.log(o.style.width);
	            }
	            if(c){
	              owt=owt+(ow+oi)
	            }else{
	              owt=owt+(ow-oi)
	            }
	          }
	        }
	        s.style.width=(w-owt)+'px';
	      }else{
	        if(m.htimer)
	          clearInterval(m.htimer)
	        if(m.timer)
	          clearInterval(m.timer);
	      }
	    }
	  };
	}();