function _SATracker() {

    this.init = function() {

        // globals
        this.doc = document;
        this.img = null;
        this.url = 'http://www.degaa.net/gather/WtbGG3HOeFTBVwNv4f79lg?';
        this.uid = 'fd11978c-625a-4ce3-bad9-38f042b6a02e';

        // get some extra info
        this.lang = window.navigator.systemLanguage ? window.navigator.systemLanguage : window.navigator.language;
        this.pixel = window.navigator.pixelDepth ? window.screen.pixelDepth : "";
        this.cpu = navigator.platform ? navigator.platform : "";
        this.timezone = ((new Date()).getTimezoneOffset) ? (new Date()).getTimezoneOffset() * -1 : "";

        this.cookies = this.cookiesEnabled();

        if (this.cookies == true)
            this.cookies = 1;
        else
            this.cookies = 0;

        this.java_enabled = navigator.javaEnabled();

        if (this.java_enabled == true)
            this.java_enabled = 1;
        else
            this.java_enabled = 0;

        // get the js version
        this.js_version = "unknown";
        try {
            document.write('<sc' + 'ript language="JavaS' + 'cript">SATracker.js_version = "1"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.1">SATracker.js_version = "1.1"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.2">SATracker.js_version = "1.2"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.3">SATracker.js_version = "1.3"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.4">SATracker.js_version = "1.4"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.5">SATracker.js_version = "1.5"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.6">SATracker.js_version = "1.6"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.7">SATracker.js_version = "1.7"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.8">SATracker.js_version = "1.8"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript1.9">SATracker.js_version = "1.9"</script' + '>');
            document.write('<sc' + 'ript language="JavaS' + 'cript2.0">SATracker.js_version = "2.0"</script' + '>');
        }
        catch (e) {
        }
        
        // load / save visitor id (if no cookies then send blank)
        if (this.cookies == 1)
        {
            if (this.getCookie("sa_ui") != null)
                this.uid = this.getCookie("sa_ui");
            else
                this.setCookie("sa_ui", this.uid, 9999);
        }
        else
            this.uid= "";

        // get the title
        this.title = encodeURIComponent(this.doc.title);

        // see if we are in some frames
        if (typeof (top.document) == "object")
            this.ref = top.document;
        else
            this.ref = this.doc;

        if (this.doc.referrer.indexOf(this.ref.location.hostname) == -1)
            this.ref = this.doc;

        this.flash_version = GetSwfVer();

        // event handler for tracking external clicks
        this.XBrowserAddHandler(document, "click", this.onClick);

        // event handler for tracking external clicks
        this.XBrowserAddHandler(window, "unload", this.onUnload);
    }

    this.setCookie = function(name, value, expiredays) {
        var exdate = new Date();
        exdate.setDate(exdate.getDate() + expiredays);
        document.cookie = name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()) + ";path=/";
    }

    // this fixes an issue with the old method, ambiguous values
    // with this test document.cookie.indexOf( name + "=" );
    this.getCookie = function(check_name) {

        var a_all_cookies = document.cookie.split(';');
        var a_temp_cookie = '';
        var cookie_name = '';
        var cookie_value = '';
        var b_cookie_found = false; // set boolean t/f default f

        for (i = 0; i < a_all_cookies.length; i++) {
            // now we'll split apart each name=value pair
            a_temp_cookie = a_all_cookies[i].split('=');

            // and trim left/right whitespace while we're at it
            cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');

            // if the extracted name matches passed check_name
            if (cookie_name == check_name) {
                b_cookie_found = true;

                // we need to handle case where cookie has no value but exists (no = sign, that is):
                if (a_temp_cookie.length > 1) {
                    cookie_value = unescape(a_temp_cookie[1].replace(/^\s+|\s+$/g, ''));
                }
                // note that in cases where cookie is initialized but no value, null is returned
                return cookie_value;
                break;
            }
            a_temp_cookie = null;
            cookie_name = '';
        }
        if (!b_cookie_found) {
            return null;
        }
    }

    // send the request to the server in the form of an image
    this.logVisit = function() {
        img = new Image(1, 1);
        img.src = this.getGatherUrl(1, null);

        // start the ping process
        this.startPing();
    }

    // send the request to the server in the form of an image
    // for some reason browsers seemt to stop processing of
    // events when download is clicked
    // TODO, this probably wont work when the doc opens in the
    // current window
    this.logDownload = function(path) {
        setTimeout("SATracker._logDownload('" + path + "');", 100);
    }

    // send the request to the server in the form of an image
    this._logDownload = function(path) {

        var img = new Image(1, 1);
        img.src = this.getGatherUrl(4, path);
    }

    this.startPing = function() {
        setTimeout("SATracker.pingSession(true)", 60000 * 5);
    }

    this.pingSession = function(setTimer) {
        //img = new Image(1, 1);
        //img.src = this.getGatherUrl(-1, null);
        if (setTimer == true)
            this.startPing();
    }

    this.XBrowserAddHandler = function(target, eventName, handlerName) {

        if (target.addEventListener) {
            target.addEventListener(eventName, handlerName, false);
        }

        else if (target.attachEvent)
            target.attachEvent("on" + eventName, handlerName);
        else
            target["on" + eventName] = handlerName;
    }

    this.cancelEvent = function(e) {
        if (!e) e = window.event;
        if (e.preventDefault) {
            e.preventDefault();
        } else {
            e.returnValue = false;
        }
    }

    this.pause = function(milliseconds) {
    
        var time_now = new Date();
        var time_expire = time_now.getTime() + milliseconds;

        while (time_now.getTime() < time_expire)
            time_now = new Date();
    }

    this.cookiesEnabled = function() {

        var cookieEnabled = (navigator.cookieEnabled) ? true : false

        //if not IE4+ nor NS6+
        if (typeof navigator.cookieEnabled == "undefined" && !cookieEnabled) {
            document.cookie = "testcookie"
            cookieEnabled = (document.cookie.indexOf("testcookie") != -1) ? true : false
        }

        // try writing a cookie to make sure!
        try {
            this.setCookie('sa_blob', 'a34jfk213', 1);

            if (this.getCookie('sa_blob') != 'a34jfk213')
                cookieEnabled = false;
        }
        catch (e) {
            cookieEnabled = false;
        }

        return cookieEnabled;
    }

    this.onUnload = function(e) {
        SATracker.pingSession(false);
    }

    this.onClick = function(e) {

        evnt_parent = null;

        if (typeof (e) != 'undefined' && e.target) {
            evnt = e;
            evnt_parent = evnt.target;
        }
        else {
            evnt = event.srcElement;
            evnt_parent = evnt.parentElement;
        }

        if (evnt_parent == null)
            return;

        if (evnt_parent.tagName == "A" || evnt_parent.tagName == "AREA")
            evnt = evnt_parent;
        else {
            if (evnt_parent.parentElement) {
                evnt_parent_p = evnt_parent.parentElement;
                if (evnt_parent_p.tagName == "A" || evnt_parent_p.tagName == "AREA")
                    evnt = evnt_parent_p;
            }
        }

        isA = (evnt.tagName == "A" || evnt.tagName == "AREA") ? 1 : 0;
        isL = (isA && evnt.href) ? 1 : 0;

        if (!isL)
            return;

        if (evnt.href.indexOf("http") == -1)
            return;

        // see if its a download (even if its on another server)
        var fileTypes = new RegExp(/\.(docx*|xlsx*|pptx*|exe|zip|pdf|xpi)$/i);

        if (fileTypes.test(evnt.href)) {
        
            // track the event
            SATracker.logDownload(evnt.href);
            
            // let the request do its thing
            SATracker.pause(500);
            return;
        }

        domain_index = evnt.href.indexOf(SATracker.doc.domain);

        if ((domain_index < 9 && domain_index != -1) || evnt.href.indexOf("/") == 1)
            return;

        // send the reqeuest
        clk_img = new Image(1, 1);
        clk_img.src = this.getGatherUrl(2, evnt.href);
    }

    this.getGatherUrl = function(event_type, link_address) {

        new_url = this.url + 'ui=' + this.uid
                   + '&et=' + event_type
                   + '&ti=' + this.title
                   + '&sh=' + screen.height
                   + '&sw=' + screen.width
                   + '&sc=' + screen.colorDepth
                   + '&p=' + this.pixel
                   + '&l=' + this.lang
                   + '&c=' + this.cpu
                   + '&t=' + this.timezone
                   + '&ja=' + this.java_enabled
                   + '&fv=' + this.flash_version
                   + '&ref=' + escape(this.ref.referrer)
                   + '&jv=' + this.js_version
                   + '&ca=' + this.cookies
                   + (link_address != null ? '&la=' + escape(link_address) : "")
                   + '&v=' + Math.random();

        return new_url;
    }
}

/////////////////////////////////////////////////////////////////////////////////////////////////
// Flash Player Version Detection - Rev 1.5
// Detect Client Browser type
// Copyright(c) 2005-2006 Adobe Macromedia Software, LLC. All rights reserved.

function ControlVersion() {
    var version;
    var axo;
    var e;

    // NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

    try {
        // version will be set for 7.X or greater players
        axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
        version = axo.GetVariable("$version");
    } catch (e) {
    }

    if (!version) {
        try {
            // version will be set for 6.X players only
            axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");

            // installed player is some revision of 6.0
            // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
            // so we have to be careful. 

            // default to the first public version
            version = "WIN 6,0,21,0";

            // throws if AllowScripAccess does not exist (introduced in 6.0r47)		
            axo.AllowScriptAccess = "always";

            // safe to call for 6.0r47 or greater
            version = axo.GetVariable("$version");

        } catch (e) {
        }
    }

    if (!version) {
        try {
            // version will be set for 4.X or 5.X player
            axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
            version = axo.GetVariable("$version");
        } catch (e) {
        }
    }

    if (!version) {
        try {
            // version will be set for 3.X player
            axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
            version = "WIN 3,0,18,0";
        } catch (e) {
        }
    }

    if (!version) {
        try {
            // version will be set for 2.X player
            axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
            version = "WIN 2,0,0,11";
        } catch (e) {
            version = -1;
        }
    }

    return version;
}

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer() {
    // NS/Opera version >= 3 check for Flash plugin in plugin array
    var flashVer = -1;

    try {

        var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
        var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
        var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

        if (navigator.plugins != null && navigator.plugins.length > 0) {
            if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
                var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
                var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
                var descArray = flashDescription.split(" ");
                var tempArrayMajor = descArray[2].split(".");
                var versionMajor = tempArrayMajor[0];
                var versionMinor = tempArrayMajor[1];
                if (descArray[3] != "") {
                    tempArrayMinor = descArray[3].split("r");
                } else {
                    tempArrayMinor = descArray[4].split("r");
                }
                var versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
                var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
            }
        }
        // MSN/WebTV 2.6 supports Flash 4
        else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
        // WebTV 2.5 supports Flash 3
        else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
        // older WebTV supports Flash 2
        else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
        else if (isIE && isWin && !isOpera) {
            flashVer = ControlVersion();
        }
    }
    catch (ex) {
    }
    return flashVer;
}
/////////////////////////////////////////////////////////////////////////////////////////////////

// create the object
var SATracker = new _SATracker();

// get params
SATracker.init();

// log the visit
SATracker.logVisit();