//获取访客id
var visitorid = getcookie("visitorid");
if (visitorid == null) {
    var s = [];
    var hexdigits = "0123456789abcdef";
    for (var i = 0; i < 32; i++) {
        s[i] = hexdigits.substr(math.floor(math.random() * 0x10), 1);
    }
    visitorid = s.join("");
}
setcookie("visitorid", visitorid, 30); //访客id保留30天
//获取访问页面
var pageurl = location.href;
//获取来源网站
var sourcewebsite = "";
var referrer = document.referrer;
if (referrer != "") {
    var referrerelement = document.createelement('a');
    referrerelement.href = referrer;
    var referrerhostname = referrerelement.hostname;
    var locationhostname = location.hostname;
    var referrerport = referrerelement.port != "" && referrerelement.port != 80 && referrerelement.port != 443 ? referrerelement.port : "";
    var locationport = location.port != "" && location.port != 80 && location.port != 443 ? location.port : "";
    if (referrerhostname != locationhostname || referrerport != locationport) {
        //其他网站
        sourcewebsite = referrerhostname + (referrerport != "" && referrerport != 80 && referrerport != 443 ? ":" + referrerport : "");
    }
}
//提交访问记录
ajaxhelper("/visit/addvisit", {
    visitorid: visitorid,
    pageurl: pageurl,
    sourcewebsite: sourcewebsite
});