var Sitester_average_number_of_executions = 1; // default 1; Raise this number to expose every N:th visitor to the survey (i.e. set to 10 and every 10th visitor is exposed etc.)
var Sitester_def_lang = "se"; // { "se", "en", "fi", "dk", "no", "de", "es", "pt", "cn", "ru", "fr", "it", "nl", etc}
var Sitester_swap_lang = ""; // { "", "se", "en", "fi", "dk", "no", "de", "es", "pt", "cn", "ru", "fr", "it", "nl", etc }
var Sitester_SurveyId = 965; // Note! The Sitester Id for the survey.
var Sitester_sekunder1 = 600; // default 600; If the user in inactive longer than this timeinterval, [Sitester_sekunder2] must pass again before the user is exposed
var Sitester_sekunder2 = 120; // default 120; Seconds until the survey are exposed the first time.
var Sitester_sekunder3 = 7776000; // default 7776000; Once exposed. This is how many seconds until the user being exposed again.
var Sitester_sekunder4 = 31536000; // default 31536000; This is how many seconds until the exposure-memory cookies expire.
var Sitester_ExcludeURL = ""; // default ""; Add URLs or part of URLs that you want to exclude from the Survey separated by a comma ","




// Browser detection
var Sitester_BrowserDetect = {
    init: function () {
        this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
        this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
        this.OS = this.searchString(this.dataOS) || "an unknown OS";
    },
    searchString: function (data) {
        for (var i = 0; i < data.length; i++) {
            var dataString = data[i].string;
            var dataProp = data[i].prop;
            this.versionSearchString = data[i].versionSearch || data[i].identity;
            if (dataString) {
                if (dataString.indexOf(data[i].subString) != -1)
                    return data[i].identity;
            }
            else if (dataProp)
                return data[i].identity;
        }
    },
    searchVersion: function (dataString) {
        var index = dataString.indexOf(this.versionSearchString);
        if (index == -1) return;
        return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
    },
    dataBrowser: [
	    {
	        string: navigator.userAgent,
	        subString: "Chrome",
	        identity: "Chrome",
	        versionSearch: "Chrome"
	    },
		{ string: navigator.userAgent,
		    subString: "OmniWeb",
		    versionSearch: "OmniWeb/",
		    identity: "OmniWeb"
		},
		{
		    string: navigator.vendor,
		    subString: "Apple",
		    identity: "Safari"
		},
		{
		    prop: window.opera,
		    identity: "Opera"
		},
		{
		    string: navigator.vendor,
		    subString: "iCab",
		    identity: "iCab"
		},
		{
		    string: navigator.vendor,
		    subString: "KDE",
		    identity: "Konqueror"
		},
		{
		    string: navigator.userAgent,
		    subString: "Firefox",
		    identity: "Firefox"
		},
		{
		    string: navigator.vendor,
		    subString: "Camino",
		    identity: "Camino"
		},
		{
		    string: navigator.userAgent,
		    subString: "Netscape",
		    identity: "Netscape"
		},
		{
		    string: navigator.userAgent,
		    subString: "MSIE",
		    identity: "Explorer",
		    versionSearch: "MSIE"
		},
		{
		    string: navigator.userAgent,
		    subString: "Gecko",
		    identity: "Mozilla",
		    versionSearch: "rv"
		},
		{
		    string: navigator.userAgent,
		    subString: "Mozilla",
		    identity: "Netscape",
		    versionSearch: "Mozilla"

		}
	],
    dataOS: [
		{
		    string: navigator.platform,
		    subString: "Win",
		    identity: "Windows"
		},
		{
		    string: navigator.platform,
		    subString: "Mac",
		    identity: "Mac"
		},
		{
		    string: navigator.platform,
		    subString: "Linux",
		    identity: "Linux"
		}
	]

};

function Sitester_Debug() {
    this.params = new Object();
    this.get = Sitester_Debug_get;
    qs = location.search.substring(1, location.search.length);

    if (qs.length == 0)
        return;

    qs = qs.replace(/\+/g, ' ');
    var args = qs.split('&');

    for (var i = 0; i < args.length; i++) {
        var value;
        var pair = args[i].split('=');
        var name = unescape(pair[0]);
        if (pair.length == 2)
            value = unescape(pair[1]);
        else
            value = name;
        this.params[name] = value;
    }
}

function Sitester_Debug_get(key, default_) {
    if (default_ == null)
        default_ = null;
    var value = this.params[key];
    if (value == null) value = default_;
    return value;
}

function Sitester_RanLCase() {
    return String.fromCharCode(97 + Math.round(Math.random() * 25));
}
function Sitester_RanUCase() {
    return String.fromCharCode(65 + Math.round(Math.random() * 25));
}
function Sitester_r_nr() {
    return Math.round((Math.random() * 9))
}
function Sitester_Generate_guid() {
    return "80b" + Sitester_r_nr() + Sitester_r_nr() + Sitester_r_nr() + Sitester_r_nr() + "-" + Sitester_RanLCase() + Sitester_r_nr() + Sitester_r_nr() + Sitester_r_nr() + "-" + Sitester_RanLCase() + Sitester_SurveyId + "-" + Sitester_r_nr() + Sitester_r_nr() + "-" + Sitester_r_nr() + Sitester_r_nr() + Sitester_RanLCase();
}

// Handle click on the layer
function Sitester_openWindow() {
    var site_id = "";
    var user_id = "";
    var visit_id = "";

    if (window.Guanoo) {
        site_id = Guanoo.Sensor.data.site;
        user_id = Guanoo.getCookie('site' + site_id + '_user_id');
        visit_id = Guanoo.getCookie('site' + site_id + '_visit_id');
    }

    var Sitester_ref = unescape(Sitester_getCookieValue(Sitester_strReferrer));
    var Sitester_guid = Sitester_Generate_guid();
    var Sitester_protocol = (("https:" == document.location.protocol) ? "https" : "http");
    var Sitester_Location = new String(window.location.href);

    window.open(Sitester_protocol + "://www.sitester.com/sform/start.asp?PK_Id=" + Sitester_guid + "&Language=" + Sitester_def_lang + "&SwapLanguage=" + Sitester_swap_lang + "&Sitester_loc=" + Sitester_Location + "&Sitester_ref=" + Sitester_ref + "&Site_Id=" + site_id + "&User_Id=" + user_id + "&Visit_Id=" + visit_id + "", "", "scrollbars=yes,width=450,height=350,toolbars=no,status=no,menubar=no,resizable=no");
    document.getElementById("Sitester").style.display = "none";

    // write LastExposure and Exposed
    if (Sitester_BrowserDetect.browser == "Safari") {
        Sitester_setCookie(Sitester_strExposedDateTime, Sitester_strMacTime, Sitester_dat4);
    }
    else {
        Sitester_setCookie(Sitester_strExposedDateTime, Sitester_exposure_dat, Sitester_dat4);
    }

    Sitester_setCookie(Sitester_strExposed, Sitester_strCookie, Sitester_dat4);

    // delete ActiveUser and Delay
    Sitester_deleteCookie(Sitester_strActiveUser);
    Sitester_deleteCookie(Sitester_strDelay);

    // remove the layer from all frames 	
    for (i = 0; (i < parent.frames.length); i++) {
        if (parent.frames[i].document.getElementById("Sitester") != null) {
            parent.frames[i].document.getElementById("Sitester").style.display = "none";
        }
    }

}

// Write layer 
function Sitester_Go() {
    var Sitester_protocol = (("https:" == document.location.protocol) ? "https" : "http");

    document.write("<div id='Sitester' title='Sitester' style='position: absolute; left:0; top:0; width:100%; height:768px; z-index:9000; visibility: visible;'>");
    document.write("<img src='" + Sitester_protocol + "://www.sitester.com/style/Sitesterlager50px.gif' width='100%' height='768' alt='Webbundersökning som öppnas i ett eget fönster' title='Sitester' onClick='Sitester_openWindow();'>");
    document.write("</div>");
}

// Randomizer 
function Sitester_rnd(cases) {
    //var ranNum = Math.round( Math.random() * (cases-1) );   
    var ranNum = Math.floor(Math.random() * (cases));
    return (ranNum == 0);
}

// Cookie functions

// Set Cookie for Mac-Safari
function Sitester_setCookieSafari(name, value, expires, domain, secure) {
    var path = '/';

    var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");

    document.cookie = curCookie;
}

// Set Cookie 
function Sitester_setCookie(name, value, expire) {
    // call the specialfunction for Cookies on Mac+Safari 
    if (Sitester_BrowserDetect.browser == "Safari") {

        Sitester_setCookieSafari(name, value, expire, false, false);
    }
    // other browsers 
    else {
        document.cookie = name + "=" + value + "; path=/" + "" + "; expires=" + expire.toGMTString();
    }
}

// Set Cookie 
function Sitester_setSessionCookie(name, value) {
    // call the specialfunction for Cookies on Mac+Safari 
    if (Sitester_BrowserDetect.browser == "Safari") {
        var domain = false;
        var secure = false;
        var expires = false;
        var path = '/';

        var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");

        document.cookie = curCookie;
    }
    // other browsers 
    else {
        document.cookie = name + "=" + value + "; path=/" + "" + "; expires=";
    }
}

// Get Cookie - checks if the cookie [Name] exists
function Sitester_getCookie(Name) {
    var search = Name + "=";
    if (document.cookie.length > 0) {
        offset = document.cookie.indexOf(search);
        if (offset != -1) {
            offset += search.length;
            end = document.cookie.indexOf(";", offset);

            if (end == -1) {
                end = document.cookie.length;
            }
            if (document.cookie.substring(offset, end) == Sitester_strCookie);
            {
                return true;
            }
        }
    }
    return false;
}

// Gets the value for the cookie [Name] 
function Sitester_getCookieValue(Name) {
    var search = Name + "=";

    if (document.cookie.length > 0) {
        offset = document.cookie.indexOf(Name);
        if (offset != -1) {
            offset += search.length;
            end = document.cookie.indexOf(";", offset);
            if (end == -1) {
                end = document.cookie.length;
            }
            return escape(document.cookie.substring(offset, end));
        }
    }
    return '';
}

function Sitester_deleteCookie(name) {
    var expire_IE = new Date();
    expire_IE.setTime(1);
    var expire_firefox = new Date("Thu Jan 01 00:00:01 1970");

    // delete cookie for FireFox 
    if (Sitester_BrowserDetect.browser == "Firefox") {
        if (Sitester_getCookie(name)) {
            Sitester_setCookie(name, Sitester_strCookie, expire_firefox);
        }
    }
    // delete cookie for other browsers 	
    else {
        if (Sitester_getCookie(name)) {
            Sitester_setCookie(name, Sitester_strCookie, expire_IE);
        }
    }
}

// Calculates if the latests exposure has occured before todays date + the parameter time
function Sitester_checkTime(time) {
    var created_date = new Date();
    var current_date = new Date();
    var search = Sitester_strExposedDateTime + "=";

    if (document.cookie.length > 0) {
        offset = document.cookie.indexOf(Sitester_strExposedDateTime);
        if (offset != -1) {
            offset += search.length;
            end = document.cookie.indexOf(";", offset);
            if (end == -1) {
                end = document.cookie.length;
            }

            current_date.getTime();

            check_date = new Date(document.cookie.substring(offset, end));

            if ((check_date.getTime() + time * 1000) < current_date.getTime()) {
                return true;
            }
        }
    }
    return false;
}


// Cookie variables
var Sitester_strCookie = "true";
var Sitester_strDelay = "Sitester_DelayId" + Sitester_SurveyId;
var Sitester_strActiveUser = "Sitester_ActiveUserId" + Sitester_SurveyId;
var Sitester_strExposed = "Sitester_ExposedId" + Sitester_SurveyId;
var Sitester_strExposedDateTime = "Sitester_ExposedDateTimeId" + Sitester_SurveyId;
var Sitester_strReferrer = "Sitester_Referrer" + Sitester_SurveyId;
var Sitester_strNth = "Sitester_Nth" + Sitester_SurveyId;

var Sitester_Trigger = false;
var Sitester_dat1 = new Date();
var Sitester_dat2 = new Date();
var Sitester_dat3 = new Date();
var Sitester_dat4 = new Date();
var Sitester_exposure_dat = new Date();
var Sitester_referrer = "";

///////////
// Start //
///////////

Sitester_BrowserDetect.init();

Sitester_Location = new String(window.location.href);
var Sitester_Debug_Opt = new Sitester_Debug();
var do_Sitester_Debug;
var Sitester_splitString = Sitester_ExcludeURL.split(",");
var Sitester_DoExclude = false

var Sitester_referrer = document.referrer;

if (Sitester_Debug_Opt.get("SitesterDebug") == "day8") {
    do_Sitester_Debug = true;
    alert('Sitester_average_number_of_executions: ' + Sitester_average_number_of_executions + "\n"
			+ 'Sitester_def_lang: ' + Sitester_def_lang + "\n"
			+ 'Sitester_swap_lang: ' + Sitester_swap_lang + "\n"
			+ 'Sitester_SurveyId: ' + Sitester_SurveyId + "\n"
			+ 'Sitester_sekunder1: ' + Sitester_sekunder1 + "\n"
			+ 'Sitester_sekunder2: ' + Sitester_sekunder2 + "\n"
			+ 'Sitester_sekunder3: ' + Sitester_sekunder3 + "\n"
			+ 'Sitester_sekunder4: ' + Sitester_sekunder4 + "\n"
			+ 'Sitester_ExcludeURL: ' + Sitester_ExcludeURL + "\n");
    Sitester_Go();
}

if (Sitester_ExcludeURL != "") {
    for (i = 0; i < (Sitester_splitString.length); i++) {
        if (Sitester_Location.toLowerCase().indexOf(Sitester_splitString[i].toLowerCase()) > -1 && !Sitester_DoExclude) {
            Sitester_DoExclude = true;
        }
        else {
            Sitester_DoExclude = false;
        }
    }
}
else {
    Sitester_DoExclude = false;
}

if (!Sitester_getCookie(Sitester_strNth)) {
    if (Sitester_rnd(Sitester_average_number_of_executions)) {
        // show the survey this session        
        Sitester_setSessionCookie(Sitester_strNth, true);
    }
    else {
        // dont show the survey this session         
        Sitester_setSessionCookie(Sitester_strNth, false);
    }
}

if (Sitester_DoExclude || do_Sitester_Debug || (Sitester_getCookieValue(Sitester_strNth) == 'false')) {
    // dont run the script
}
else {
    // Delete cookies from v3-v6 
    if (Sitester_getCookie("BefInt")) {
        Sitester_deleteCookie("BefInt");
        Sitester_deleteCookie("AllReady");
        Sitester_deleteCookie("Delay");
        Sitester_deleteCookie("LastExposure");
        Sitester_deleteCookie("Exposed");
    }
    if (Sitester_getCookie("LastExposure")) {
        Sitester_deleteCookie("BefInt");
        Sitester_deleteCookie("AllReady");
        Sitester_deleteCookie("Delay");
        Sitester_deleteCookie("LastExposure");
        Sitester_deleteCookie("Exposed");
    }
    // Set the referrer cookie 
    if (!Sitester_getCookie(Sitester_strReferrer)) {
        Sitester_setSessionCookie(Sitester_strReferrer, Sitester_referrer);
    }

    // If not ActiveUser and not Delay, = not inside the 2- or 10-minute interval 
    if (!Sitester_getCookie(Sitester_strActiveUser) && !Sitester_getCookie(Sitester_strDelay)) {
        // ActiveUser = true 
        Sitester_dat1.setTime(Sitester_dat1.getTime() + (Sitester_sekunder1 * 1000));
        Sitester_setCookie(Sitester_strActiveUser, Sitester_strCookie, Sitester_dat1);

        // Delay = true 
        Sitester_dat2.setTime(Sitester_dat2.getTime() + (Sitester_sekunder2 * 1000));
        Sitester_setCookie(Sitester_strDelay, Sitester_strCookie, Sitester_dat2);
    }

    // is there a Exposed-cookie? 
    if (Sitester_getCookie(Sitester_strExposed)) {
        // Is the time interval since the last exposure greater than Sitester_sekunder3? 
        if (Sitester_checkTime(Sitester_sekunder3)) {
            // ActiveUser = true 
            Sitester_dat1.setTime(Sitester_dat1.getTime() + (Sitester_sekunder1 * 1000));
            Sitester_setCookie(Sitester_strActiveUser, Sitester_strCookie, Sitester_dat1);

            // Delay = true 
            Sitester_dat2.setTime(Sitester_dat2.getTime() + (Sitester_sekunder2 * 1000));
            Sitester_setCookie(Sitester_strDelay, Sitester_strCookie, Sitester_dat2);

            // delete the Exposed-cookies 
            Sitester_deleteCookie(Sitester_strExposed);
            Sitester_deleteCookie(Sitester_strExposedDateTime);
        }
    }
    // If no Exposed-Cookie exists 
    else {
        // ActiveUser and no Delay ? 
        if (Sitester_getCookie(Sitester_strActiveUser) && !Sitester_getCookie(Sitester_strDelay)) {
            // Run the survey 
            Sitester_Trigger = true;
        }
    }

    // If not ActiveUser and the time interval since the last exposure is greater than Sitester_sekunder3 
    if (!Sitester_getCookie(Sitester_strActiveUser) && Sitester_checkTime(Sitester_sekunder1)) {
        // Reset ActiveUser 
        Sitester_dat1.setTime(Sitester_dat1.getTime() + (Sitester_sekunder1 * 1000));
        Sitester_setCookie(Sitester_strActiveUser, Sitester_strCookie, Sitester_dat1);
    }

    // Should the survey run? 
    if (Sitester_Trigger) {
        Sitester_exposure_dat.setTime(Sitester_exposure_dat.getTime());
        Sitester_dat4.setTime(Sitester_dat4.getTime() + (Sitester_sekunder4 * 1000));
        Sitester_strMacTime = Sitester_exposure_dat.getTime();

        // Write the layer 
        Sitester_Go();
    }
}