$(document).ready(function() {

    var datum = new Date()
    var tag = datum.getDay();
    var std = datum.getHours();

    // nicht zwischen Freitag 17:00.01 Uhr und Montag 00:00:01 Uhr anzeigen //
    var showCounter = true;
    
    
    // Sonntag oder Samstag? //
    if(tag==0 || tag==6)
    {
        showCounter = false;
    }
    
    // Freitag + später als 17 Uhr // 
    if(tag==5 && std >= 17)
    {
        showCounter = false;
    }
    
    if(showCounter == true)
    {
        const chtml = '<div id="counterHolder" class="mobile_hide" style="float:right; min-width: 250px;"><div class="user_content"><div class="counter-kasten"><div class="row"><div class="col-xs-6"><svg xmlns="http://www.w3.org/2000/svg"viewBox="0 0 24 24"><path fill="none"d="M0 0h24v24H0z"></path><path d="M4 6.414L.757 3.172l1.415-1.415L5.414 5h15.242a1 1 0 0 1 .958 1.287l-2.4 8a1 1 0 0 1-.958.713H6v2h11v2H5a1 1 0 0 1-1-1V6.414zM5.5 23a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3zm12 0a1.5 1.5 0 1 1 0-3 1.5 1.5 0 0 1 0 3z"></path></svg><span class="time">17:00</span><span class="arrow right"><span class="head"></span></span></div><div class="col-xs-6" style="text-align:right"><span class="time">17:30</span><svg xmlns="http://www.w3.org/2000/svg"viewBox="0 0 24 24"><path fill="none"d="M0 0h24v24H0z"></path><path d="M17 8h3l3 4.056V18h-2.035a3.5 3.5 0 0 1-6.93 0h-5.07a3.5 3.5 0 0 1-6.93 0H1V6a1 1 0 0 1 1-1h14a1 1 0 0 1 1 1v2zm0 2v3h4v-.285L18.992 10H17z"></path></svg><span class="arrow right"><span class="head"></span></span></div></div><p class="counter"><span id="hours"></span> : <span id="minutes"></span> : <span id="seconds"></span></p></div>';

        $(chtml).insertAfter('#template_header_list');

        const ltime = 17;

        const second = 1000;
        const minute = second * 60;
        const hour = minute * 60;

        let countDown = new Date(new Date().getFullYear(), new Date().getMonth(), new Date().getDate(), ltime,0,0).getTime();           

        let x = setInterval(function() {
            let now = new Date().getTime();
            let distance = countDown - now;

            var _h = Math.floor(distance / (hour));
            var _m = Math.floor((distance % (hour)) / (minute));
            var _s = Math.floor((distance % (minute)) / second);

            if(_h<0){_h = 24+_h;}
            if(_m<0){_m = 60+_m;}
            if(_s<0){_s = 60+_s;}

            if(_h<10){_h = "0"+_h;}
            if(_m<10){_m = "0"+_m;}
            if(_s<10){_s = "0"+_s;}

            document.getElementById('hours').innerText = _h;
            document.getElementById('minutes').innerText = _m;
            document.getElementById('seconds').innerText = _s;

        }, second);
    }
});