/*
** Global Variables
*/
var baseURL = 'https://admin.covid-19.infotalk.eu/';
var mediaURL = 'https://dwmbpc85i11i.cloudfront.net/';


/*
** http Helper Functions
*/
function httpGet(theUrl)
{
	var xmlHttp = null;
	try {
		// Mozilla, Opera, Safari sowie Internet Explorer (ab v7)
		xmlHttp = new XMLHttpRequest();
	} catch(e) {
		try {
			// MS Internet Explorer (ab v6)
			xmlHttp  = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(e) {
			try {
				// MS Internet Explorer (ab v5)
				xmlHttp  = new ActiveXObject("Msxml2.XMLHTTP");
			} catch(e) {
				xmlHttp  = null;
			}
		}
	}

	var noCacheUrl = theUrl + ((/\?/).test(theUrl) ? "&" : "?") + (new Date()).getTime();
	//xmlHttp.open("GET", theUrl, false);	// ohne den cache zu umgehen
	xmlHttp.open("GET", noCacheUrl, false);
	xmlHttp.send(null);
	return xmlHttp.responseText;
}
function httpPost(theUrl,theData)
{
	var xmlHttp = null;
	try {
		// Mozilla, Opera, Safari sowie Internet Explorer (ab v7)
		xmlHttp = new XMLHttpRequest();
	} catch(e) {
		try {
			// MS Internet Explorer (ab v6)
			xmlHttp  = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(e) {
			try {
				// MS Internet Explorer (ab v5)
				xmlHttp  = new ActiveXObject("Msxml2.XMLHTTP");
			} catch(e) {
				xmlHttp  = null;
			}
		}
	}

	var parameterString = '';
	for (var i = 0; i < theData.length; i++)
	{ 
		parameterString += (i == 0 ? "" : "&") 
			+ theData[i][0] + "="
			+ encodeURI(theData[i][1]); 
	}

	xmlHttp.open("POST", theUrl, false);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//xmlHttp.setRequestHeader("Content-length", parameterString.length);
	//xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(parameterString);
	return xmlHttp.responseText;
}


/*
** Data Helper Functions
*/
/*
function encryptTextFieldModal()
{
	password = $('#encrypt-data-modal-password').val();
	password2 = $('#encrypt-data-modal-password2').val();
	content_field = $('#encrypt-data-modal-field').val();

	if(password!=password2)
	{
		$('#encrypt-data-modal-password').focus();
		$('#encrypt-data-modal-error').text('Passwords do not match!');
		return false;
	}

	content = '';
	nodename = $(content_field).prop('nodeName');
	if(nodename=='P')
	{
		content = $(content_field).text();
	}
	else
	{
		content = $(content_field).val();
	}

	try {
		encrypted = sjcl.encrypt(password, content);
	}
	catch(error) {
		$('#encrypt-data-modal-password').val('');
		$('#encrypt-data-modal-password').focus();
		$('#encrypt-data-modal-password2').val('');
		$('#encrypt-data-modal-error').text('Encryption Error!');
		return false;
	}

	$('#encrypt-data-modal-password').val('');
	$('#encrypt-data-modal-password2').val('');
	$('#encrypt-data-modal-field').val('');
	$('#encrypt-data-modal-error').text('');
	if(nodename=='P')
	{
		$(content_field).text(encrypted);
	}
	else
	{
		$(content_field).val(encrypted);
	}
	return true;
}


function decryptTextFieldModal()
{
	password = $('#decrypt-data-modal-password').val();
	content_field = $('#decrypt-data-modal-field').val();

	if(content_field.charAt(0)=='#')
	{
		content = '';
		nodename = $(content_field).prop('nodeName');
		if(nodename=='P' || nodename=='TD')
		{
			content = $(content_field).attr('value');
		}
		else
		{
			content = $(content_field).val();
		}
		content = content.replace('&quot;','"');

		try {
			decrypted = sjcl.decrypt(password, content);
		}
		catch(error) {
			$('#decrypt-data-modal-password').val('');
			$('#decrypt-data-modal-password').focus();
			$('#decrypt-data-modal-error').text('Decryption Error! Wrong Password?');
			return false;
		}

		if(nodename=='P' || nodename=='TD')
		{
			decrypted = returnPreformattedTextForHTML(decrypted);
			$(content_field).html(decrypted);
		}
		else
		{
			$(content_field).val(decrypted);
		}
	}
	if(content_field.charAt(0)=='.')
	{
		$(content_field).each(
			function()
			{
				content = $(this).attr('value');

				decrypted = '';
				try {
					decrypted = sjcl.decrypt(password, content);
				}
				catch(error) {
					decrypted = 'Uh-oh, the content is still encrypted! Password mismatch?';
				}

				decrypted = returnPreformattedTextForHTML(decrypted);
				$(this).html(decrypted);
			}
		);
	}

	$('#decrypt-data-modal-password').val('');
	$('#decrypt-data-modal-field').val('');
	$('#decrypt-data-modal-error').text('');

	return true;
}
*/
/* VINTAGE FUNCTIONS!
function encryptTextField(textfieldid)
{
	password = prompt('Enter password!', '');
	content = $(textfieldid).val();
	encrypted = sjcl.encrypt(password, content);
	$(textfieldid).val(encrypted);
}
function decryptTextField(textfieldid)
{
	password = prompt('Enter password!', '');
	content = $(textfieldid).val();
	decrypted = sjcl.decrypt(password, content);
	$(textfieldid).val(decrypted);
}
function encryptTextFieldUsingTextContents(textfieldid)
{
	password = prompt('Enter password!', '');
	content = $(textfieldid).text();
	encrypted = sjcl.encrypt(password, content);
	$(textfieldid).text(encrypted);
}
function decryptTextFieldUsingTextContents(textfieldid)
{
	password = prompt('Enter password!', '');
	content = $(textfieldid).text();
	decrypted = sjcl.decrypt(password, content);
	decrypted = returnPreformattedTextForHTML(decrypted);
	$(textfieldid).html(decrypted);
}
*/

function returnPreformattedTextForHTML(text)
{
	if(text.indexOf('{"iv":"')!=-1)
	{
		text = 'Uh-oh, the content is encrypted! Hit <i class="fa fa-unlock"></i> button to decrypt.';
		return text;
	}

	// htmlentities
	//text = text.replace(/&/gi,'&amp;');
	//text = text.replace(/</gi,'&lt;');
	//text = text.replace(/>/gi,'&gt;');
	text = text.replace(/[\u00A0-\u9999<>\&]/gim, function(i) { return '&#'+i.charCodeAt(0)+';'; });

	// tab stops
	text = text.replace(/	/gi,'<span style="padding-left:23px;"></span>');

	// nl2br
	text = text.replace(/\n/gi,'<br />');

	// links
	text = Autolinker.link(text, { newWindow: true, stripPrefix: false });

	//text = text.replace(/(((f|ht){1}tp://)[-a-zA-^Z0-9@:\%_\+.~#?&//=]+)/gi,'<a href="\\1" target="_blank">\\1</a>');
	//$return = preg_replace('%(((f|ht){1}tp://)[-a-zA-^Z0-9@:\%_\+.~#?&//=]+)%i', '<a href="\\1" target="_blank">\\1</a>', $return );
	//$return = preg_replace('%(((f|ht){1}tps://)[-a-zA-^Z0-9@:\%_\+.~#?&//=]+)%i', '<a href="\\1" target="_blank">\\1</a>', $return );

	return text;
}


/*
** Cookie Helper Functions
*/
if (typeof String.prototype.trimLeft !== "function") {
    String.prototype.trimLeft = function() {
        return this.replace(/^\s+/, "");
    };
}
if (typeof String.prototype.trimRight !== "function") {
    String.prototype.trimRight = function() {
        return this.replace(/\s+$/, "");
    };
}
if (typeof Array.prototype.map !== "function") {
    Array.prototype.map = function(callback, thisArg) {
        for (var i=0, n=this.length, a=[]; i<n; i++) {
            if (i in this) a[i] = callback.call(thisArg, this[i]);
        }
        return a;
    };
}
function getCookies() {
    var c = document.cookie, v = 0, cookies = {};
    if (document.cookie.match(/^\s*\$Version=(?:"1"|1);\s*(.*)/)) {
        c = RegExp.$1;
        v = 1;
    }
    if (v === 0) {
        c.split(/[,;]/).map(function(cookie) {
            var parts = cookie.split(/=/, 2),
                name = decodeURIComponent(parts[0].trimLeft()),
                value = parts.length > 1 ? decodeURIComponent(parts[1].trimRight()) : null;
            cookies[name] = value;
        });
    } else {
        c.match(/(?:^|\s+)([!#$%&'*+\-.0-9A-Z^`a-z|~]+)=([!#$%&'*+\-.0-9A-Z^`a-z|~]*|"(?:[\x20-\x7E\x80\xFF]|\\[\x00-\x7F])*")(?=\s*[,;]|$)/g).map(function($0, $1) {
            var name = $0,
                value = $1.charAt(0) === '"'
                          ? $1.substr(1, -1).replace(/\\(.)/g, "$1")
                          : $1;
            cookies[name] = value;
        });
    }
    return cookies;
}
function getCookie(name) {
    return getCookies()[name];
}


/*
** Random Number Helper Functions
*/
function randomIntFromInterval(min,max)
{
    return Math.floor(Math.random()*(max-min+1)+min);
}function goFullscreen()
{
	var elem = document.getElementById("wrapper");
	if (elem.requestFullscreen) {
	  elem.requestFullscreen();
	} else if (elem.msRequestFullscreen) {
	  elem.msRequestFullscreen();
	} else if (elem.mozRequestFullScreen) {
	  elem.mozRequestFullScreen();
	} else if (elem.webkitRequestFullscreen) {
	  elem.webkitRequestFullscreen();
	}
}

function ajaxNextPrevious(presentation_id,nextprevious)
{
	var geturl = baseURL + 'presenter/ajaxnextprevious/id/'+presentation_id + '/nextprevious/'+nextprevious;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 5000,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				if(content_presentation!=result.slide_raw)
				{
					$("#image").css("background-image",'url('+result.slide_raw+')');
					content_presentation = result.slide_raw;
					presentation_image_preloader_current_slide = result.slide_raw;

					slide_current = parseInt(result.slide_current);
					slides_total = parseInt(result.slides_total);
				}

				$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}
function ajaxPresentationGo(presentation_id,slide)
{
	var geturl = baseURL + 'presenter/ajaxpresentationgo/id/'+presentation_id + '/slide/'+slide;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 5000,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				if(content_presentation!=result.slide_raw)
				{
					$("#image").css("background-image",'url('+result.slide_raw+')');
					content_presentation = result.slide_raw;
					presentation_image_preloader_current_slide = result.slide_raw;

					slide_current = parseInt(result.slide_current);
					slides_total = parseInt(result.slides_total);
				}

				$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}

function ajaxGetPresentation(presentation_id)
{
	var geturl = baseURL + 'presenter/ajaxgetjson/id/'+presentation_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2800,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				if(content_presentation!=result.slide_raw)
				{
					$("#image").css("background-image",'url('+result.slide_raw+')');
					content_presentation = result.slide_raw;
				}

				// FOR PRELOADING IMAGES...
				presentation_image_preloader_array = result.slides_all;
				presentation_image_preloader_current_slide = result.slide_raw;

				slide_current = parseInt(result.slide_current);
				slides_total = parseInt(result.slides_total);

				$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			// $('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}
function presenterPreloadSlides()
{
	presentation_image_preloader_id = 0;
	presentation_image_preloader_errors = 0;

	var img = new Image();
	img.onload = function()
	{
		console.log("... "+this.src+" loaded.");
		$("#image").css("background-image",'url('+this.src+')');

		presentation_image_preloader_id++;
		if(presentation_image_preloader_id < presentation_image_preloader_array.length)
		{
			this.src = presentation_image_preloader_array[presentation_image_preloader_id];
			$('#wrapper-preload').show();
			$('#wrapper-preload').html("Preloading: "+presentation_image_preloader_array[presentation_image_preloader_id]);
			console.log("Preloading: " + presentation_image_preloader_array[presentation_image_preloader_id] + " ...");
		}
		else
		{
			$('#wrapper-preload').show();
			$('#wrapper-preload').html("Preloading finished. Errors: "+presentation_image_preloader_errors+".");
			console.log("Preloading finished. Errors: "+presentation_image_preloader_errors+"");
			setTimeout(function(){
				$("#image").css("background-image",'url('+presentation_image_preloader_current_slide+')');
				$('#wrapper-preload').hide();
				},2000);
		}
	}
	img.onerror = img.onabort = function()
	{
		console.log("... "+this.src+" preload error.");
		presentation_image_preloader_errors++;

		presentation_image_preloader_id++;
		if(presentation_image_preloader_id < presentation_image_preloader_array.length)
		{
			this.src = presentation_image_preloader_array[presentation_image_preloader_id];
			$('#wrapper-preload').show();
			$('#wrapper-preload').html("Preloading: "+presentation_image_preloader_array[presentation_image_preloader_id]);
			console.log("Preloading: " + presentation_image_preloader_array[presentation_image_preloader_id] + " ...");
		}
		else
		{
			$('#wrapper-preload').show();
			$('#wrapper-preload').html("Preloading finished. Errors: "+presentation_image_preloader_errors+".");
			console.log("Preloading finished. Errors: "+presentation_image_preloader_errors+"");
			setTimeout(function(){
				$("#image").css("background-image",'url('+presentation_image_preloader_current_slide+')');
				$('#wrapper-preload').hide();
				},2000);
		}
	}
	img.src = presentation_image_preloader_array[presentation_image_preloader_id];
	$('#wrapper-preload').show();
	$('#wrapper-preload').html("Preloading: "+presentation_image_preloader_array[presentation_image_preloader_id]);
	console.log("Preloading: " + presentation_image_preloader_array[presentation_image_preloader_id] + " ...");
}

function ajaxPingPresentation(presentation_id)
{
	var geturl = baseURL + 'presenter/ajaxping/id/'+presentation_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2000,
		success: function(result)
		{
			$('#wrapper-error').hide();
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}

function ajaxGetHost(infotalk_id)
{
	var geturl = baseURL + 'host/ajaxgetjson/id/'+infotalk_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2800,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				if(content_host!=result.host)
				{
					if(result.host_flash=='true')
					{
						var timeout = 0;
						var timeout_add = 50;
						setTimeout(function(){$('#wrapper').css({'background-color': 'white'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'black'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'white'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'black'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'white'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'black'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'white'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'black'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'white'});}, timeout); timeout+=timeout_add;
						setTimeout(function(){$('#wrapper').css({'background-color': 'black'});}, timeout); timeout+=timeout_add;
					}

					$("#text").html( '<span>'+result.host+'</span>' );
					$('#text').textfill({
						maxFontPixels:-1
					});
					content_host = result.host;
				}
				$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}

function ajaxPingHost(infotalk_id)
{
	var geturl = baseURL + 'host/ajaxping/id/'+infotalk_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2000,
		success: function(result)
		{
			$('#wrapper-error').hide();
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}

function ajaxGetStatusOverview(infotalk_id)
{
	var geturl = baseURL + 'infotalks/statusoverviewajax/id/'+infotalk_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 4000,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				$("#text").html( '<span>'+result.content+'</span>' );
				//!! NOT USED ANYMORE IN STATUS DISPLAY!!! $('#text').textfill({
				//	maxFontPixels:-1
				//});
				$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			statusoverview_last_error_time = Date.now();
			$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}

/*
** BEGIN CLOCK DECLARATIONS AND FUNCTIONS
*/
var myClockData = [
	{mode:"rtcutc",label:"_UTC",lastvalue:""},
	//{mode:"rtc",label:"UHR:",lastvalue:""}
	//{mode:"datetime",label:"CLK1",lastvalue:"",targettime:"2020-12-10 12:59:00"},
	//{mode:"countdowncountup",label:"CLK2",lastvalue:"",time:"00:01:00",started:"2020-11-23 18:19:17"}
]
var myInfoString = "";
var myInfoStringHasChanged = false;

var serverTimeTimeDiff = 0;
var serverTimeTimeDiffLast = 0;
var serverTimeTimeDiffOverride = 0;
var lastMeasuredRTT = 0;

function initServerTime()
{
	var webServer = "https://admin.covid-19.infotalk.eu/time.php";

	var blob = new Blob([
		document.querySelector('#servertimeworker').textContent
	], { type: "text/javascript" })

	// Note: window.webkitURL.createObjectURL() in Chrome 10+.
	var worker = new Worker(window.URL.createObjectURL(blob));
	worker.onmessage = function(e)
	{
		console.log("[INFOTALK] SRV:"+e.data.serverTimeMS+"ms LOC:"+e.data.localTimeMS+"ms RTT:"+e.data.roundtripToServer+"ms");

		lastMeasuredRTT = 0;
		if(true) lastMeasuredRTT = e.data.roundtripToServer;	// use RTT/2
		serverTimeTimeDiffLast = e.data.serverTimeMS - e.data.localTimeMS + (lastMeasuredRTT/2);
		console.log("[INFOTALK] DIFF:"+serverTimeTimeDiffLast+"ms");

		var maxTimeDiff = 2 * 1000 * 60;	// zwei Minuten
		if(serverTimeTimeDiffLast < -maxTimeDiff || serverTimeTimeDiffLast > maxTimeDiff)
		{
			serverTimeTimeDiffLast = 0;
			console.log("[INFOTALK] Calculated time difference > "+maxTimeDiffMinutes+"m: falling back to local time.");
		}

		if(serverTimeTimeDiffLast!=0)
		{
			if(serverTimeTimeDiff==0)
			{
				serverTimeTimeDiff = serverTimeTimeDiffLast;
			}
			else
			{
				serverTimeTimeDiff += serverTimeTimeDiffLast;
				serverTimeTimeDiff /= 2;
				serverTimeTimeDiff = Math.round(serverTimeTimeDiff);
			}
		}

		worker.terminate();
	}
	worker.postMessage(webServer);
}
function getCalculatedServerTimeMS()
{
	//if(serverTimeTimeDiff==0) console.log("[INFOTALK] Server time unkown, falling back to local time!");
	var currentDate = new moment.utc();
	if(serverTimeTimeDiffOverride==0)
	{
		currentDate += serverTimeTimeDiff;
	}
	else
	{
		currentDate += serverTimeTimeDiffOverride;
	}
	return currentDate;
}
function setServerTimeTimeDiffOverrideNew(serverTimeTimeDiffOverrideNew)
{
	if(serverTimeTimeDiffOverrideNew!=null)
	{
		serverTimeTimeDiffOverride = parseInt(serverTimeTimeDiffOverrideNew);
	}
}

function updateClockPacer()
{
	var somethingHasChanged = false;
	var serverTime = getCalculatedServerTimeMS();

	for(i=0; i<myClockData.length; ++i)
	{
		switch(myClockData[i].mode)
		{
			case "rtcutc":
			{
				var newvalue = "";
				newvalue += "" + myClockData[i].label + "&nbsp;";
				newvalue += "&nbsp;&nbsp;" + moment.utc(serverTime).format("HH:mm:ss");
				newvalue += "<br />";
				if(myClockData[i].lastvalue!=newvalue)
				{
					myClockData[i].lastvalue = newvalue;
					somethingHasChanged = true;
				}
				break;
			}
			case "rtc":
			{
				var newvalue = "";
				newvalue += "" + myClockData[i].label + "&nbsp;";
				newvalue += "&nbsp;&nbsp;" + moment(serverTime).format("HH:mm:ss");
				newvalue += "<br />";
				if(myClockData[i].lastvalue!=newvalue)
				{
					myClockData[i].lastvalue = newvalue;
					somethingHasChanged = true;
				}
				break;
			}
			case "datetime":
			{
				var calculatedTime = moment(myClockData[i].targettime)-moment.utc(serverTime);

				var newvalue = "";
				newvalue += "" + myClockData[i].label + " ";
				newvalue += returnTimeStringForCountdown(calculatedTime);
				newvalue += "<br />";
				if(myClockData[i].lastvalue!=newvalue)
				{
					myClockData[i].lastvalue = newvalue;
					somethingHasChanged = true;
				}
				break;
			}
			case "countdowncountup":
			{
				var currentDateString = moment().format("YYYY-MM-DD");

				var timeWithDate = currentDateString + " " + myClockData[i].time;
				var currentDateMidnight = currentDateString + " " + "00:00:00";
				var timeAsMS = moment.utc(timeWithDate) - moment.utc(currentDateMidnight);

				var calculatedTime = moment(myClockData[i].started) + timeAsMS - moment.utc(serverTime);

				var newvalue = "";
				newvalue += "" + myClockData[i].label + " ";
				newvalue += returnTimeStringForCountdown(calculatedTime);
				newvalue += "<br />";
				if(myClockData[i].lastvalue!=newvalue)
				{
					myClockData[i].lastvalue = newvalue;
					somethingHasChanged = true;
				}
				break;
			}
			default:
			{
				var newvalue = "";
				newvalue += "" + myClockData[i].label + " ";
				newvalue += moment(serverTime).format("HH:mm:ss");
				newvalue += "<br />";
				if(myClockData[i].lastvalue!=newvalue)
				{
					myClockData[i].lastvalue = newvalue;
					somethingHasChanged = true;
				}
				break;
			}
		}
	}

	var myInfoStringNew = "ΔLast:"+serverTimeTimeDiffLast+"ms | " + "ΔAvg:"+serverTimeTimeDiff+"ms | RTT:"+lastMeasuredRTT+"ms | OVERRIDE:"+serverTimeTimeDiffOverride+"ms (<a href='#' onClick='serverTimeTimeDiffOverrideNew = prompt(\"This overrides the calculated time difference between client and server. Use with caution! Milliseconds. 0 to disable.\", serverTimeTimeDiffOverride); setServerTimeTimeDiffOverrideNew(serverTimeTimeDiffOverrideNew); '>set</a>) | <a href='https://uhr.ptb.de/' target='_blank'>PTB</a>";
	if(myInfoString!=myInfoStringNew)
	{
		myInfoString = myInfoStringNew;
		myInfoStringHasChanged = true;
		somethingHasChanged = true;
	}
	return somethingHasChanged;
}
function returnTimeStringForCountdown(milliseconds)
{
	if(milliseconds<0)
	{
		var appendForDays = "&nbsp;";
		milliseconds *= -1;
		if(milliseconds > 24*60*60*1000) appendForDays = "d";
		return appendForDays + "+" + moment.utc(milliseconds).format("HH:mm:ss");
	}
	if(milliseconds==0)
	{
		return "&nbsp;&nbsp;00:00:00"
	}
	if(milliseconds>0)
	{
		var appendForDays = "&nbsp;";
		milliseconds+=1000;
		if(milliseconds > 24*60*60*1000) appendForDays = "d";
		return appendForDays + "-" + moment.utc(milliseconds).format("HH:mm:ss");
	}
}
function updateClockRender()
{
	var displayString = "";

	for(i=0; i<myClockData.length; ++i)
	{
		displayString += myClockData[i].lastvalue;
	}

	$("#text").html( '<span>'+displayString+'</span>' );
	$('#text').textfill({
		maxFontPixels:-1
	});

	if(myInfoStringHasChanged)
	{
		$("#info").html( myInfoString );
		myInfoStringHasChanged = false;
	}
}

function ajaxGetClock(infotalk_id)
{
	var geturl = baseURL + 'host/ajaxgetjson/id/'+infotalk_id;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2800,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);

			if(result.error!='')
			{
				//$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				// neue werte hier setzen
				console.log(myClockData);
				myClockData = result.clockdata;
				myClockData = JSON.parse(myClockData);
				console.log(myClockData);
				//$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			//$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}
/*
** END CLOCK DECLARATIONS AND FUNCTIONS
*/


/*
** BEGIN CLIENTSPLIT DECLARATIONS AND FUNCTIONS
*/
function ajaxGetClientSplit(url_string)
{
	var geturl = baseURL + 'infotalksclientsplits/getreloaddatetime/s/'+url_string;
	$.ajax({
		url: geturl,
		method: 'GET',
		timeout: 2800,
		success: function(result)
		{
			result = base64_decode(result);
			result = JSON.parse(result);
			if(result.error!='')
			{
				//$('#wrapper-error').show();
				return;
			}
			if(result.status=='ok')
			{
				if(result.reload_datetime!=reloaddatetime)
				{
					console.log("NEW reloaddatetime: "+result.reload_datetime);
					reloaddatetime = result.reload_datetime;
					window.location.reload(true);
				}
				//$('#wrapper-error').hide();
			}
		},
		error: function(jqXHR, textStatus, errorThrown)
		{
			//$('#wrapper-error').show();
			console.log(textStatus);
		}
	});

	return;
}
/*
** END CLIENTSPLIT DECLARATIONS AND FUNCTIONS
*/



function checkKey(e)
{
	e = e || window.event;

	switch(e.keyCode)
	{
		case 37:	// left arrow
		case 38:	// up arrow
		case 33:	// Page Up
		{
			ajaxNextPrevious(presentation_id,0);
			break;
		}
		case 39:	// right arrow
		case 40:	// down arrow
		case 13:	// enter key
		case 32:	// space key
		case 34:	// Page Down
		{
			ajaxNextPrevious(presentation_id,1);
			break;
		}
		case 49:	// 1
		{
			ajaxPresentationGo(presentation_id,1);
			break;
		}
		case 171:	// +
		{
			slide_go = slide_current + 5;
			if(slide_go > slides_total) slide_go = slides_total;
			ajaxPresentationGo(presentation_id,slide_go);
			break;
		}
		case 173:	// -
		{
			slide_go = slide_current - 5;
			if(slide_go < 1) slide_go = 1;
			ajaxPresentationGo(presentation_id,slide_go);
			break;
		}
		case 80:	// p
		{
			presenterPreloadSlides();
			break;
		}
		default:
		{
			console.log(e.keyCode);
			break;
		}
	}
}
function checkKeyPresenterMonitor(e)
{
	e = e || window.event;

	switch(e.keyCode)
	{
		case 80:	// p
		{
			presenterPreloadSlides();
			break;
		}
		default:
		{
			console.log(e.keyCode);
			break;
		}
	}
}


var content_presentation = '';
var content_host = '';

var presentation_image_preloader_id = 0;
var presentation_image_preloader_array = [];
var presentation_image_preloader_current_slide = "";
var presentation_image_preloader_errors = 0;

var slide_current = 0;
var slides_total = 0;

/*
** On Load
*/
$(document).ready(function()
{
	if(typeof is_presenter_mode != 'undefined')
	{
		if(presenter_monitor=='false')
		{
			document.onkeydown = checkKey;

			setInterval(function(){
				ajaxPingPresentation(presentation_id);
				}, 2500); // war 1500 vor corona
		}
		else
		{
			document.onkeydown = checkKeyPresenterMonitor;

			setInterval(function(){
				ajaxGetPresentation(presentation_id);
				}, 2000); // war 1500 vor corona
		}

		ajaxGetPresentation(presentation_id);
	}

	if(typeof is_host_mode != 'undefined')
	{
		setInterval(function(){
			ajaxGetHost(infotalk_id);
			}, 2000); // war 1500 vor corona

		if(host_monitor=='false')
		{
			setInterval(function(){
				ajaxPingHost(infotalk_id);
				}, 2000); // war 1500 vor corona
		}
	}

	if(typeof is_statusoverview_mode != 'undefined')
	{
		setInterval(function(){
			ajaxGetStatusOverview(infotalk_id);
			}, 2000); // war 1500 vor corona
	}

	if(typeof is_clock_mode != 'undefined')
	{
		initServerTime();
		setInterval(function(){
			initServerTime();
			}, 10000);

		ajaxGetClock(infotalk_id);
		setInterval(function(){
			ajaxGetClock(infotalk_id);
			}, 10000);

		setInterval(function(){
			if(updateClockPacer()) updateClockRender();
			}, 20);
	}

	if(typeof is_clientsplit_mode != 'undefined')
	{
		setInterval(function(){
			ajaxGetClientSplit(clientspliturlstring);
			}, 10000);
	}

});