var getReferrer = function() {
    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;
};

var cookie = {
    g: function(name) {
        var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
        if (arr != null) return unescape(arr[2]); return null;
    },

    d: function(name) {
        var exp = new Date();
        exp.setTime(exp.getTime() - 1);
        var cval = getCookie(name);
        if (cval != null) document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString() + ";path=/";
    },

    s: function(name, value) {
        var exp = new Date();
        exp.setTime(exp.getTime() + 2 * 60 * 1000);
        document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString() + ";path=/";
    }
}

var __url = "http://tg.anxin.com:801/?referrer=" + escape(getReferrer()) + "&href=" + escape(location.href) + "&pid=10";


function _track(action, element, params) {
    
    //alert(__url + "&action=" + action + "&element=" + element + "&params=" + params);
    var ga = document.createElement("script");
    ga.type = "text/javascript";
    ga.async = true;
    ga.src = __url + "&action=" + action + "&element=" + element + "&params=" + params;
    var s = document.getElementsByTagName("script")[0];    
    s.parentNode.insertBefore(ga, s); 
}

_track(1, "", "");



function _previouspagetrack(action, element) {
    try
    {
        // "anxin_onbeforeunload"
        var arr = document.cookie.match(new RegExp("(^| )anxin_onbeforeunload=([^;]*)(;|$)"));
        
        if (arr == null)
        {
            return null;
        }
        else
        {
            var exp = new Date();
            exp.setTime(exp.getTime() - 10000);
            document.cookie="anxin_onbeforeunload=" + unescape(arr[2]) + "; expire="+exp.toGMTString(); 
        }
        
        // 没有pid
        var _cururl = "http://tg.anxin.com:801/PageUnload.aspx?referrer=" + escape(getReferrer()) + "&href=" + escape(location.href) + "&pid=10";
        var ga1 = document.createElement("script");
        ga1.type = "text/javascript";
        ga1.async = true;
        ga1.src = _cururl + "&action=0&element=&params=1&guid=1" + unescape(arr[2]);
        var s1 = document.getElementsByTagName("script")[0];    
        s1.parentNode.insertBefore(ga1, s1); 
        
    }
    catch(e)
    {
        //alert(e);
    }
}

var ___previouspage = "";

_previouspagetrack(0, "");


var st=new Date().getTime();
 
window.onbeforeunload = function() {
    var date = new Date();
    var yyyy = date.getFullYear();
    var m = date.getMonth() + 1;
    var mm = (m < 10) ? '0' + m : m;
    var d = date.getDate();
    var dd = (d < 10) ? '0' + d : d;
    var h = date.getHours();
    var hh = (h < 10) ? '0' + h : h;
    var n = date.getMinutes();
    var nn = (n < 10) ? '0' + n : n;
    var s = date.getSeconds();
    var ss = (s < 10) ? '0' + s : s;
    var __guid = yyyy + mm + dd + hh + nn + ss + Math.floor(Math.random() * ( 1000 + 1));
    
    // 离开页面记录cookie
    var exp = new Date();
    exp.setTime(exp.getTime() + 10 * 1000);
    document.cookie = "anxin_onbeforeunload=" + escape(__guid) + ";expires=" + exp.toGMTString() + ";path=/";
    
    // 页面停留时长 毫秒
    var et=new Date().getTime() - st;

    var _cururl = "http://tg.anxin.com:801/PageUnload.aspx?referrer=" + escape(getReferrer()) + "&href=" + escape(location.href) + "&pid=10";

    var ga2 = document.createElement("script");

    ga2.type = "text/javascript";
    ga2.async = true;
    ga2.src = _cururl + "&action=0&element=&params=0&guid=" + __guid + "&duration=" + et;
    var s = document.getElementsByTagName("script")[0];    
    s.parentNode.insertBefore(ga2, s); 
};