// --------------------------------------------------------------------
// 
// --------------------------------------------------------------------	

function CT_EventTracking(ConvID, ConvAmt) {
    var Referrer = "";
    try {
        Referrer = document.referrer;
    }
    catch (Referrer) {
        Referrer = "Undefined Referrer";
    }

    // Do not record hits for cahced pages that start with file://)
    if (Referrer.substr(1, 8) == "file://") {
        return false;
    }

    var URL = document.URL;
    var EntryUrl = URL;
    var PageTitle = document.title;
    var Resolution = screen.width + 'x' + screen.height;
    var Browser = navigator.appName;
    var CampaignID = null;
    var SearchTerm = null;
    var CreativeID = null;
    var AdgroupId = null;
    var MatchType = null;
    var ctTestID = null;
    var ctPlmnt = null;
    var ctVTInfo = null;
    var FirstHit = null;
    var CookieCreatedDate = null;
    var CookieId = null;
    var ConvType = 1;
    var ctAdPos = null;

    if ((ConvID == "ConversionId") || (isEmpty(ConvID))) {
        ConvID = "";
    }


    //extract url Paramaters from Querystring
    var querystring = "";
    try {
        querystring = document.location.search;
    }
    catch (querystring) {
        querystring = "";
    }

    if (querystring) {
        if (querystring.length > 0) {
            CampaignID = GetParamFromUrl(querystring, "ctcampaign");
            SearchTerm = GetParamFromUrl(querystring, "ctkwd");
            CreativeID = GetParamFromUrl(querystring, "ctcreative");
            AdgroupId = GetParamFromUrl(querystring, "ctadgroup");
            MatchType = GetParamFromUrl(querystring, "ctmatch");
            ctTestID = GetParamFromUrl(querystring, "TestId");
            ctPlmnt = GetParamFromUrl(querystring, "ctplacement");
            ctAdPos = GetParamFromUrl(querystring, "ctadpos"); 
        }
    }
    //Get Cookie values
    var CampaignCookie = new CookieObject("CT_CID");
    var KeytermCookie = new CookieObject("CT_KWD");
    var ReferrerCookie = new CookieObject("CT_REF");
    var CreativeCookie = new CookieObject("CT_AD");
    var AdGroupCookie = new CookieObject("CT_ADGROUP");
    var MatchTypeCookie = new CookieObject("CT_MATCH");
    var AssistCampaignCookie = new CookieObject("CT_Assist_CID");
    var AssistKeytermCookie = new CookieObject("CT_Assist_KWD");
    var AssistMatchCookie = new CookieObject("CT_Assist_MATCH");
    var AssistCreativeCookie = new CookieObject("CT_Assist_AD");
    var EntryUrlCookie = new CookieObject("CT_ENTRYURL");
    var TypeCookie = new CookieObject("CT_Type");

    var CreatedDateCookie = new CookieObject("CT_CrtDate");
    var UIDCookie = new CookieObject("CT_UID");

    var TestIdCookie = new CookieObject("CT_TestId");
    var PlacementCookie = new CookieObject("CT_Plmnt");
    var VtInfoCookie = new CookieObject("CT_VTInfo");
    var AdPosCookie = new CookieObject("CT_AdPos");

    ctVTInfo = VtInfoCookie.GetValue();

    var AssistKwd = KeytermCookie.GetValue();
    var AssistCampaign = CampaignCookie.GetValue();
    var AssistMatch = MatchTypeCookie.GetValue();
    var AssistCreative = CreativeCookie.GetValue();

    var CookieDataString = CampaignCookie.GetValue() + KeytermCookie.GetValue() + CreativeCookie.GetValue();
    if (isEmpty(SearchTerm)) {
        SearchTerm = "";
    }
    if (isEmpty(CreativeID)) {
        CreativeID = "";
    }
    if (isEmpty(CampaignID)) {
        CampaignID = "";
    }
    var QueryDataString = CampaignID + SearchTerm + CreativeID;

    if (isEmpty(AdgroupId)) {
        AdgroupId = "";
    }
    if (isEmpty(MatchType)) {
        MatchType = "";
    }
    if (isEmpty(ctTestID)) {
        ctTestID = 0;
    }
    if (isEmpty(ctPlmnt)) {
        ctPlmnt = "";
    }
    if (isEmpty(ctAdPos)) {
        ctAdPos = "";
    }


    if (!isEmpty(CampaignID) && (CookieDataString != QueryDataString)) {
        FirstHit = true;
    }
    else {
        var CookieValueCampaign = CampaignCookie.GetValue();
        var CookieValueTerm = KeytermCookie.GetValue();
        var CookieValueCreative = CreativeCookie.GetValue();
        var CookieValueAdgroup = AdGroupCookie.GetValue();
        var CookieValueMatchType = MatchTypeCookie.GetValue();
        var CookieTypeValue = TypeCookie.GetValue();
        var CookieTestIdValue = TestIdCookie.GetValue();
        var CookiePlacementValue = PlacementCookie.GetValue();
        var CookieAdPosValue = AdPosCookie.GetValue();

        if (isEmpty(CookieValueCampaign)) {
            CampaignID = "DIRECT";
            SearchTerm = "";
            CreativeID = "";
            AdgroupId = "";
            MatchType = "";
            ctTestID = 0;
            ctPlmnt = "";
            ctAdPos = "";
            ConvType = 1;
            FirstHit = true;
        }
        else {
            CampaignID = CookieValueCampaign;
            SearchTerm = CookieValueTerm;
            CreativeID = CookieValueCreative;
            AdgroupId = CookieValueAdgroup;
            MatchType = CookieValueMatchType;
            Referrer = ReferrerCookie.GetValue();
            AssistKwd = CookieValueTerm;
            AssistCampaign = CookieValueCampaign;
            AssistMatch = CookieValueMatchType;
            AssistCreative = CookieValueCreative;
            ConvType = CookieTypeValue;
            ctTestID = CookieTestIdValue;
            ctPlmnt = CookiePlacementValue;
            ctAdPos = CookieAdPosValue;
            FirstHit = false;
        }
    }

    //Setup Cookie variables
    var DefaultCookieExp = 1440; //60 days	

    var ClientDomain = document.domain;
    if (isEmpty(CookieDomain)) {
        CookieDomain = ClientDomain;
    }

    var CookiePath = "/"
    var ExpDate = new Date();
    ExpDate.setHours(ExpDate.getHours() + DefaultCookieExp);


    //Set the Assist Keyword and Campaign 
    if ((AssistKwd != SearchTerm) && (!isEmpty(AssistKwd)) && (!isEmpty(SearchTerm))) {
        AssistCampaignCookie.SetValue(AssistCampaign, ExpDate, false, CookiePath, CookieDomain);
        AssistKeytermCookie.SetValue(AssistKwd, ExpDate, false, CookiePath, CookieDomain);
        AssistMatchCookie.SetValue(AssistMatch, ExpDate, false, CookiePath, CookieDomain);
        AssistCreativeCookie.SetValue(AssistCreative, ExpDate, false, CookiePath, CookieDomain);
    }
    else {
        AssistCampaign = AssistCampaignCookie.GetValue();
        AssistKwd = AssistKeytermCookie.GetValue();
        AssistMatch = AssistMatchCookie.GetValue();
        AssistCreative = AssistCreativeCookie.GetValue();
    }

    //set the cookies values
    CampaignCookie.SetValue(CampaignID, ExpDate, false, CookiePath, CookieDomain);
    KeytermCookie.SetValue(SearchTerm, ExpDate, false, CookiePath, CookieDomain);
    CreativeCookie.SetValue(CreativeID, ExpDate, false, CookiePath, CookieDomain);
    AdGroupCookie.SetValue(AdgroupId, ExpDate, false, CookiePath, CookieDomain);
    MatchTypeCookie.SetValue(MatchType, ExpDate, false, CookiePath, CookieDomain);
    ReferrerCookie.SetValue(Referrer, ExpDate, false, CookiePath, CookieDomain);

    TestIdCookie.SetValue(ctTestID, ExpDate, false, CookiePath, CookieDomain);
    PlacementCookie.SetValue(ctPlmnt, ExpDate, false, CookiePath, CookieDomain);
    AdPosCookie.SetValue(ctAdPos, ExpDate, false, CookiePath, CookieDomain);

    if (CampaignID == "DIRECT") {
        CampaignID = null;
    }

    if (Referrer == "")
        Referrer = "Blank Referrer";

    if (FirstHit == true) {
        EntryUrlCookie.SetValue(EntryUrl, ExpDate, false, CookiePath, CookieDomain);
    }

    //If Cookie doesnt exist than set ID and Date
    if ((FirstHit == true) && (isEmpty(CookieDataString))) {
        var CurrentDate = new Date();
        CreatedDateCookie.SetValue((CurrentDate.getMonth() + 1 + "/" + CurrentDate.getDate() + "/" + CurrentDate.getFullYear() + " " + CurrentDate.getHours() + ":" + CurrentDate.getMinutes() + ":" + CurrentDate.getSeconds()), ExpDate, false, CookiePath, CookieDomain);
        UIDCookie.SetValue(escape(GetRandom(Referrer + PageTitle + CurrentDate.getMilliseconds())), ExpDate, false, CookiePath, CookieDomain)

    }


    CookieCreatedDate = CreatedDateCookie.GetValue();
    CookieId = UIDCookie.GetValue();

    var entryURL = EntryUrlCookie.GetValue();
    var TrackURL = "//hits.convergetrack.com/default.aspx";

    //Check ConvType,  Must be a number.  Set to 1 if its empty or not a number
    if (isEmpty(ConvType) || isNaN(ConvType)) {
        TypeCookie.SetValue(1, ExpDate, false, CookiePath, CookieDomain);
    }
    else {
        TypeCookie.SetValue(ConvType, ExpDate, false, CookiePath, CookieDomain);
    }



    //combine all tracking info into a query string
    var TrackParams =
		"?ckid=" + escape(EventId) + "&caid=" + escape(CampaignID) + "&kwd=" + escape(SearchTerm) + "&amount=" + escape(String(ConvAmt)) + "&CType=" + escape(ConvType) +
		"&cvid=" + escape(ConvID)  + "&rnd=" + escape(GetRandom(PageTitle)) + "&firsthit=" + escape(String(FirstHit)) +
		"&js=" + "true" + "&adid=" + escape(CreativeID) + "&eventurl=" + escape(URL) + "&entryURL=" + escape(entryURL) + "&CDate=" + escape(CookieCreatedDate) + "&CID=" + escape(CookieId) +
		"&mt=" + escape(MatchType) + "&testid=" + escape(ctTestID) + "&ctVTInfo=" + escape(ctVTInfo) + "&referrer=" + escape(Referrer) + "&ctplc=" + escape(ctPlmnt) + "&ctpos=" + escape(ctAdPos) + "&aCmp=" + escape(AssistCampaign) + "&aKwd=" + escape(AssistKwd) + "&aMT=" + escape(AssistMatch) + "&aAd=" + escape(AssistCreative) + "&title=" + escape(PageTitle) + "&res=" + escape(Resolution) + "&adgrp=" + escape(AdgroupId) + "&bws=" + escape(Browser);

    document.write('<img src="' + TrackURL + TrackParams + '" width="1" height="1">');

}

function CookieObject(cookiename) {
    this.Cookiename = cookiename;

    this.SetValue = function (value, expires, secure, path, domain) {
        if (path == null)
            path = "/";

        document.cookie = escape(this.Cookiename) + "="
			+ escape(value)
			+ ((expires == null) ? "" : ("; expires=" + expires.toGMTString()))
			+ ((path == null) ? "" : ("; path=" + path))
			+ ((domain == null) ? "" : ("; domain=" + domain))
			+ ((secure == true) ? "; secure" : "");
    }

    this.GetValue = function () {
        var str = escape(cookiename) + "=";

        var strlen = str.length;
        var cookielen = document.cookie.length;
        var i = 0;
        var j;

        while (i < cookielen) {
            j = i + strlen;

            if (document.cookie.substring(i, j) == str)
                return getCookieVal(j);

            i = document.cookie.indexOf(" ", i) + 1;

            if (i == 0) break;
        }

        return '';
    }

    function getCookieVal(lastpos) {
        var str = document.cookie.indexOf(";", lastpos);

        if (str == -1)
            str = document.cookie.length;

        return unescape(document.cookie.substring(lastpos, str));
    }
}

function GetParamFromUrl(querystring, name) {
    var i;
    var arr = querystring.substr(1).split("&");

    for (i = 0; i < arr.length; i++) {
        if (arr[i].indexOf(name + "=") == 0)
            return this.unescape(arr[i].split("=")[1]);
    }

    return null;
}

function isEmpty(strVal) {
    return (strVal == null || strVal == 'null' || strVal == '');
}

function GetRandom(str) {
    var buster;
    buster = new Date().valueOf() + Math.random() * 500;
    return buster;
}