(function(){
"use strict";
function chi(d){try{return new Intl.DateTimeFormat('en-CA',{timeZone:'America/Chicago',year:'numeric',month:'2-digit',day:'2-digit'}).format(d);}catch(e){return d.toISOString().slice(0,10);}}
var today=chi(new Date());
var track=document.getElementById('xslTrack');
if(!track)return;
var i,li,s,kids=track.children;
for(i=kids.length-1;i>=0;i--){li=kids[i];s=li.getAttribute('data-start');
  if(s&&(s>today||today>li.getAttribute('data-end'))){track.removeChild(li);}}
kids=track.children;
var n=kids.length;
var root=document.querySelector('.xsl');
var dots=document.getElementById('xslDots');
var db=dots.querySelectorAll('button');
for(i=0;i<db.length;i++){
  if(i<n){
    db[i].setAttribute('data-n',i);
    db[i].setAttribute('aria-label','Go to slide '+(i+1));
    db[i].parentNode.style.display='';
    if(i===0){db[i].setAttribute('aria-current','true');}else{db[i].removeAttribute('aria-current');}
  }else{db[i].parentNode.style.display='none';}
}
var idx=0,timer=null;
var reduced=window.matchMedia&&window.matchMedia('(prefers-reduced-motion: reduce)').matches;
function paint(){
  track.style.transform='translate('+(-idx*100)+'%,0)';
  for(var j=0;j<n;j++){var isOn=j===idx;
    kids[j].setAttribute('aria-hidden',isOn?'false':'true');
    if(isOn){db[j].setAttribute('aria-current','true');}else{db[j].removeAttribute('aria-current');}}
  if(kids[idx].className.indexOf('xsl--light')>=0){root.classList.add('xsl--light-dots');}
  else{root.classList.remove('xsl--light-dots');}
}
function go(k){idx=((k%n)+n)%n;paint();}
function step(d){go(idx+d);}
function stop(){if(timer){clearInterval(timer);timer=null;}}
function restart(){stop();if(!reduced&&n>1){timer=setInterval(function(){step(1);},5000);}}
dots.addEventListener('click',function(ev){
  var t=ev.target;
  if(!t||t.tagName!=='BUTTON')return;
  go(parseInt(t.getAttribute('data-n'),10));restart();
});
document.getElementById('xslPrev').addEventListener('click',function(){step(-1);restart();});
document.getElementById('xslNext').addEventListener('click',function(){step(1);restart();});
root.addEventListener('mouseenter',stop);
root.addEventListener('mouseleave',restart);
root.addEventListener('focusin',stop);
root.addEventListener('focusout',restart);
var tx=null;
root.addEventListener('touchstart',function(ev){tx=ev.touches[0].clientX;stop();},{passive:true});
root.addEventListener('touchend',function(ev){
  if(tx===null)return;var dx=ev.changedTouches[0].clientX-tx;tx=null;
  if(Math.abs(dx)>40){step(dx<0?1:-1);}restart();
},{passive:true});
document.addEventListener('visibilitychange',function(){if(document.hidden){stop();}else{restart();}});
if(n<2){
  document.getElementById('xslPrev').style.display='none';
  document.getElementById('xslNext').style.display='none';
  dots.style.display='none';
}
function tick(){
  var now=Date.now(),els=document.querySelectorAll('[data-cd]'),k,el,t;
  for(k=0;k<els.length;k++){el=els[k];
    t=new Date(el.getAttribute('data-cd')).getTime()-now;
    if(t<=0){el.textContent='00d 00h 00m 00s';continue;}
    var d=Math.floor(t/864e5),h=Math.floor(t/36e5)%24,m=Math.floor(t/6e4)%60,sec=Math.floor(t/1e3)%60;
    var p=function(x){return (x<10?'0':'')+x;};
    el.textContent=(d>0?d+'d ':'')+p(h)+'h '+p(m)+'m '+p(sec)+'s';
  }
}
setInterval(tick,1000);tick();
paint();restart();
})();