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gistfile1.js

(function() {
    function getCookie(name) {
        var cookie = document.cookie;
        var s = removeBlanks(cookie);
        var pairs = s.split(";");
        for (var i = 0; i < pairs.length; i++) {
            var pairSplit = pairs[i].split("=");
            if (pairSplit.length > 1 && pairSplit[0] == name) {
                return pairSplit[1];
            }
        }
        return "";
    }

    function removeBlanks(s) {
        var temp = "";
        for (var i = 0; i < s.length; i++) {
            var c = s.charAt(i);
            if (c != " ") {
                temp += c;
            }
        }
        return temp;
    }

    function setCookie(name, value) {
        var d = new Date();
        d.setTime(d.getTime() + 360 * 24 * 60 * 60 * 1000);
        var newCookie = name + "=" + value + ";" + "path=/;domain=.rubyless.com;expires=" + d.toGMTString();
        window.document.cookie = newCookie;
    }

    function getMstuid() {
        var d = new Date();
        var mstuid = d.getTime() + "_" + Math.round(Math.random() * 10000);
        return mstuid;
    }

    function creatSrcipt(url) {
        var o = document.createElement('script');
        o.type = 'text/javascript';
        o.async = true;
        o.src = url;
        var s = document.getElementsByTagName('script')[0];
        s.parentNode.insertBefore(o, s);
    }

    function bind(oTarget, sEventType, fnHandler) {
        if (oTarget.addEventListener) { //firefox
            oTarget.addEventListener(sEventType, fnHandler, false);
        } else if (oTarget.attachEvent) { //IE
            oTarget.attachEvent("on" + sEventType, fnHandler);
        } else {
            oTarget["on" + sEventType] = fnHandler;
        }
    }

    function stopDefault(e) {
        if (e && e.preventDefault) {
            e.preventDefault();
        } else {
            event.returnValue = false;
        }
    }

    var uri = document.location.href.replace(/&/g, '|');
    var ref = document.referrer.replace(/&/g, '|');

    var phpsessid = getCookie("PHPSESSID");
    var mstuid = getCookie("mstuid");
    var muuid = getCookie("muuid");
    var mucid = getCookie("mucid");
    var mstlastpid = getCookie("mstlastpid");

    if (mstuid === "") {
        mstuid = getMstuid();
        setCookie("mstuid", mstuid);
    }
    var d2 = new Date();
    var param = "phpsessid=" + phpsessid + "&mstuid=" + mstuid + "&muuid=" + muuid + "&mucid=" + mucid + "&mstpid=" + mstlastpid + "&timestamp=" + d2.getTime() + "&ref=" + encodeURIComponent(ref),
        url = "http://xxx.com/js/mstr.js?";
    creatSrcipt(url + param);

    var allLinks = document.getElementsByTagName("a");
    for (var i = 0; i < allLinks.length; i++) {
        var mstObj = allLinks[i],
            pid = mstObj.getAttribute("mstpid");
        if (pid) {
            bind(mstObj, "click", function(e) {
                var pid = this.getAttribute("mstpid"),
                    gid = this.getAttribute("mstgid"),
                    src = this.getAttribute("href");

                stopDefault(e);
                if (mstlastpid != pid) {
                    document.cookie = "mstlastpid=" + pid + name + ";" + "path=/;domain=.rubyless.com";
                }
                var paramNew = "mstpid=" + pid + "&mstgid=" + gid + "&mstlastpid=" + mstlastpid + "&" + param + "&target=" + src;
                creatSrcipt(url + paramNew);
                window.setTimeout(function() {
                    window.location = src;
                }, 200);
            });
        }
    }

})();