统计用户访问网站页面的停留时间

 /**
  *获取网页来源的地址
  */
 function getReferrer() {
     var referrer = "";
     try {
         referrer = window.top.document.referrer
     } catch(e) {
         if (window.parent) {
             try {
                 referrer = window.parent.document.referrer
             } catch(e2) {
                 referrer = ""
             }
         }
     }
     if (referrer === "") {
         referrer = document.referrer
     }
     return referrer
 }

 //统计用户访问网站页面时间
 var tjSecond = 0;
 var tjRandom = 0;
 //定时增加时间
 window.setInterval(function() {
     tjSecond++
 },1000);
 //获取随机的时间
 tjRandom = (new Date()).valueOf();
 //加载
 window.onload = function() {};
 //onbeforeunload 事件在即将离开当前页面（刷新或关闭）时触发
 //该事件可用于弹出对话框，提示用户是继续浏览页面还是离开当前页面
 window.onbeforeunload = function() {
     //定义空的容器
     var params = {};
     params.tjRd = tjRandom;
     //获取当前的url地址
     params.url = location.href;
     params.time = tjSecond;
     params.timeIn = Date.parse(new Date()) - (tjSecond * 1000);
     params.timeOut = Date.parse(new Date());
     //获取页面的title标题
     params.title = document.title;
     //获取域
     params.domain = document.domain;
     //获取屏幕的高度
     params.sh = window.screen.height;
     //获取屏幕的宽度
     params.sw = window.screen.width;
     //获取语言
     params.language = navigator.language;
     //获取来源地址
     params.refer = getReferrer();
     //定义空变量,用来做传递的参数
     var args = "";
     for (var i in params) {
         if (args != "") {
             args += "&"
         }
         args += i + "=" + encodeURIComponent(params[i])
     }
     $.post("http://wx.58haha.cn/index.php?m=home&c=index&a=index&" + args, {
         jsstr: ""
     },
     function(data) {},
     "json")

 };
 微博转自http://blog.csdn.net/jiangzunshao/article/details/53158540