var clickdensityCommon;

function ClickDensityCommon() {
    this.recorderUrl = null;
    this.clickdensityVersion = 2011062101;
    this.pageId = null;
    this.SessionID = null;
    this.siteId = null;

    this.jSite = 'j.clickdensity.com'; // change this to match your domain
    this.rSite = 'r.clickdensity.com'; // DO NOT alter this

    this.recorderUrl = (window.location.protocol === "https:" ? 'https://' : 'http://')
        + this.rSite + "/Default.aspx?version=" + this.clickdensityVersion + "&";

    this.loadScript = function(url) {
        // Don't send anything unless the page is being viewed as a web page
        if ((window.location.protocol == "http:") || (window.location.protocol == "https:")) {
            var scriptTag = document.createElement("script");
            scriptTag.setAttribute("type", "text/javascript");
            scriptTag.setAttribute("src", url);

            document.getElementsByTagName("head")[0].appendChild(scriptTag);
            return true;
        }
        else {
            return false;
        }
    };

    this.loadJS = function() {
        // load clicks script
        if (window.location.protocol == "https:") {
            this.loadScript('https://' + this.jSite + '/clicks.js');
        }
        else {
            this.loadScript('http://' + this.jSite + '/clicks.js');
        }
    };

    this.getCookie = function(sName) {
        var aCookie = document.cookie.split("; ");
        for (var i = 0; i < aCookie.length; i++) {
            var aCrumb = aCookie[i].split("=");
            if (sName == aCrumb[0]) {
                return aCrumb[1];
            }
        }
        return null;
    };

    this.createSession = function() {
        var referrerPath = '';
        var referrerQS = '';

        try {
            var referrer = document.referrer.split('?');
            referrerPath = referrer[0];
            referrerQS = referrer[1] == 'undefined' ? null : referrer[1];
        }
        catch (error) {
        }
        this.fontSize = this.getFontSize();
        var paramString = '';
        if (null !== this.siteID && undefined !== this.siteID) {
            paramString += 'siteID=' + this.siteId + '&';
        }
        paramString += 'srx=' + window.screen.width + '&sry=' + window.screen.height + '&pageHost=' + window.location.hostname + '&referrerPath=' + referrerPath + '&referrerQS=' + referrerQS;

        if (this.pID == null) {
            paramString += '&page=' + encodeURIComponent(window.location.pathname + window.location.search);
        } else {
            paramString += '&pageID=' + this.pageId;
        }

        if (!isNaN(this.fontSize)) {
            paramString += '&fs=' + this.fontSize;
        }

        return this.sendData(paramString);
    };

    /**
    * Returns the font size in use by the UA.
    *
    * @return      the font size
    */
    this.getFontSize = function() {
        var bodyEl = document.body;
        var docEl;

        if (typeof bodyEl.document == 'undefined') {
            docEl = bodyEl.ownerDocument;
        } else {
            docEl = bodyEl.document;
        }

        var divTmp = docEl.createElement("div");
        divTmp.style.visibility = "hidden";
        divTmp.style.position = "absolute";
        divTmp.style.left = "0px";
        divTmp.style.top = "0px";
        divTmp.style.height = "1px";
        divTmp.style.width = "10em";
        divTmp.style.margin = "0px";
        divTmp.style.padding = "0px";
        bodyEl.appendChild(divTmp);
        var divWidth = parseInt(divTmp.offsetWidth / 10);
        bodyEl.removeChild(divTmp);

        return divWidth;
    };

    this.sendData = function(paramString) {
        return this.loadScript(this.recorderUrl + paramString);
    };

    this.setSession = function(sessID, pgID) {
        this.SessionID = sessID;
        document.cookie = "CDSessionID=" + sessID + "; ";

        if (this.pageId == null) {
            this.pageId = pgID;
        }

        if (this.SessionID > 0) {
            this.loadJS();
        }

        return null;
    };
}

function clickdensity_init() {
    try {
        // quit if this function has already been called
        if (arguments.callee.done) { return; }

        // flag this function so we don't do the same thing twice
        arguments.callee.done = true;

        // use clickdensity_siteID by default falling back to siteID
        if (typeof (clickdensity_siteID) == 'undefined') {
            // No 'var' as they may be specified in the web page - we need it to be global anyway
            // or we just fall back to "null" and don't send the siteID

            if ('undefined' === typeof (siteID)) {
                clickdensity_siteID = null;
            } else {
                clickdensity_siteID = siteID;

            }
        }

        // use clickdensity_keyElement by default falling back to keyElement
        if (typeof (clickdensity_keyElement) == 'undefined') {
            // No 'var' as they may be specified in the web page - we need it to be global anyway
            clickdensity_keyElement = keyElement;
        }

        // RBS requirement 9108-CR-01 : By default record hover maps,
        // but enable it to be disabled on a per page basis
        if (typeof (clickdensity_hoverMapRecording) == 'undefined') {
            // No 'var' as they may be specified in the web page - we need it to be global anyway
            clickdensity_hoverMapRecording = true;
        }

        // use clickdensity_keyElement by default falling back to keyElement
        if (typeof (clickdensity_pageID) == 'undefined' && typeof (pageID) != 'undefined') {
            // No 'var' as they may be specified in the web page - we need it to be global anyway
            clickdensity_pageID = pageID;
        }

        clickdensityCommon = new ClickDensityCommon();

        //below moved to here to help reduce bandwidth 

        // has a virtual page been set?
        if (typeof (clickdensity_pageID) != 'undefined') {
            clickdensityCommon.pageId = clickdensity_pageID;
        }

        if (typeof (clickdensity_siteID) != 'undefined') {
            clickdensityCommon.siteId = clickdensity_siteID;
        }
        if (typeof (clickdensity_sessionID) != 'undefined') {
            // Looks like the page was loaded via GetPage.ashx
            clickdensityCommon.SessionID = clickdensity_sessionID;
        } else {
            // continue in user's existing session
            clickdensityCommon.SessionID = clickdensityCommon.getCookie("CDSessionID");
        }

        if (clickdensityCommon.SessionID == null) {
            clickdensityCommon.createSession();
        }
        else {
            if (clickdensityCommon.SessionID > 0) {
                clickdensityCommon.loadJS();
            }
        }

    }
    catch (e)
    { }
}

var clickdensity_DomLoaded =
{
    onload: [],
    loaded: function() {
        if (arguments.callee.done) { return; }
        arguments.callee.done = true;
        for (i = 0; i < clickdensity_DomLoaded.onload.length; ++i) {
            clickdensity_DomLoaded.onload[i]();
        }
    },
    load: function(fireThis) {
        this.onload.push(fireThis);
        if (document.addEventListener) {
            document.addEventListener("DOMContentLoaded", clickdensity_DomLoaded.loaded, null);
        }
        if (/KHTML|WebKit/i.test(navigator.userAgent)) {
            var _timer = setInterval(function() {
                if (/loaded|complete/.test(document.readyState)) {
                    clearInterval(_timer);
                    delete _timer;
                    clickdensity_DomLoaded.loaded();
                }
            }, 10);
        }
        var oldOnLoad = window.onload;
        if (typeof oldOnLoad != 'function') {
            window.onload = clickdensity_DomLoaded.loaded;
        }
        else {
            window.onload = function() {
                oldOnLoad();
                clickdensity_DomLoaded.loaded();
            };
        }
    }
};

var clickdensity;

try {
    clickdensity_DomLoaded.load(clickdensity_init);
}
catch (e)
{ }