//  080709 Philipp
// any questions please contact me on philipp.krasser@globalpark.com
// define the variables we need
 var survey_cookie = "surveycookie1";  // name of the cookie
 var when_to_pop = 60000;             // time after which the pop-up should be displayed (in milli seconds) so 60000 = 1 min
 var how_long = 7;                    // definies the days of how long the cookie should be stored on the users machine
 var who_sees = 0.30;                  // define the probability of how many visitors will see the pop-up 0.34 = 1/3; 0.5 = 1/2,...
 var where_to_go ="http://efs.globalpark.co.uk/uc/main/7596"; // defines the location URL of the survey 
 var open_like ="_blank";  // how to open the link html
 var open_dimensions = "width=650,height=550,location=no,resizable=yes,menubar=no,toolbar=no,scrollbars=yes"; // define the window attributes
 var layer_id_name = "surveypop";  // id name of the pop-up layer
 
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//////////******************** DO NOT CHANGE ANYTHING BELOW THIS LINE **********************************//////////////////////////
//////////******************** DO NOT CHANGE ANYTHING BELOW THIS LINE **********************************//////////////////////////
//////////******************** DO NOT CHANGE ANYTHING BELOW THIS LINE **********************************//////////////////////////
 
 
 
function createSCookie(name,value,days) {
            if (days) {
                        var date = new Date();
                        date.setTime(date.getTime()+(days*24*60*60*1000));
                        var expires = "; expires="+date.toGMTString();
            }
            else var expires = "";
            document.cookie = name+"="+value+expires+"; path=/";
}
 
function readSCookie(name) {
            var nameEQ = name + "=";
            var ca = document.cookie.split(';');
            for(var i=0;i < ca.length;i++) {
                        var c = ca[i];
                        while (c.charAt(0)==' ') c = c.substring(1,c.length);
                        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
            }
            return null;
}
 
function eraseSCookie(name) {
            createCookie(name,"",-1);
}
 
 
 
/// actually creating the cookie below
 
function createSurveyCookie(){
 var s_cookie_value = new Date().getTime();  // set the value to be either seen time now or not 0= do not show  set time now to 
  createSCookie(survey_cookie,s_cookie_value,how_long);
// console.log('created cookie');
  
}
 
function notshowSurveyCookie(){
  createSCookie(survey_cookie,0,how_long);
}
 
function notshowSurveyCookiethisSession(){
  createSCookie(survey_cookie,0,0);
}
 
// Part of the old script 
 
function checkSurveyCookie() {   
  // console.log('in checkSurveyCookie');
            var ck = readSCookie(survey_cookie);
            if (ck == null || ck == undefined || ck == "") {
                        var num = Math.random();
 //console.log('math random= ', num );
                        if (num < who_sees) {
                                    createSurveyCookie();
                                    window.surveyTimer = setTimeout("checkSurveyCookie()", 1000);
                        } else {
                                    notshowSurveyCookiethisSession();//  write the survey cookie but with the value set to 0 so the pop up will never show
                        //          console.log('will not have a pop up');
                        }
            } else {
                        ck = parseInt(ck);
                        // console.log('this is the ck value=', ck);
                        if (ck > 0) {
                                    var time_now = new Date().getTime();
                                    var time_then = ck;
                                    var difference = time_now - time_then;
                                    if (difference > when_to_pop) {
                                                showSurveyPopup();
                                    } else {
                                                window.surveyTimer = setTimeout("checkSurveyCookie()", 1000);
                                    }
                        }
            }
}
                                    
function showSurveyPopup() {
            var lay = document.getElementById(layer_id_name);
            var layerwidth = 500;
            var layerheight = 300;
            var width = screen.width;
            var height = screen.height;
            var top = parseInt((height - layerheight) / 2) - 100;
            var left = parseInt((width - layerwidth) / 2);
            lay.style.left = left;
            lay.style.top = top;
            lay.style.display = "inline";
            lay.style.visibility = "visible";
}
                                    
function closeSurveyPopup() {
            var lay = document.getElementById(layer_id_name);
            lay.style.display = "none";
            lay.style.visibility = "hidden";
            notshowSurveyCookie();
}
 
function remindUserLater() {
            closeSurveyPopup();
            window.surveyTimer = setTimeout('checkSurveyCookie()', 1000);
            createSurveyCookie();
}
 
function activateSurvey() {
            closeSurveyPopup();
            window.open(where_to_go,open_like,open_dimensions);
}
 
 
window.surveyTimer = setTimeout("checkSurveyCookie()", 1000);