old_contents: var localtime = document.getElementById("local");
  var chi = document.getElementById("chi");
  var tw = document.getElementById("tw");
  // var hk = document.getElementById("hk");
  
  moment.tz.load({
    zones: [],
    links: [],
    version: "2014e",
  });
  
  // Display all names
  // moment.tz.names();
  
  localtime.innerText = moment().tz("America/Sao_Paulo").format("HH:mm");
  ny.innerText = moment().tz("America/New_York").format("HH:mm");
  tw.innerText = moment().tz("Asia/Taipei").format("HH:mm");
  ro.innerText = moment().tz("Europe/Rome").format("HH:mm");
  bei.innerText = moment().tz("Asia/Shanghai").format("HH:mm");
  
new_contents: moment.tz.load({
    zones: [],
    links: [],
    version: "2014e",
  });
  
  // Display all names
  // moment.tz.names();
  
  var localtime = document.getElementById("local");
  var chi = document.getElementById("chi");
  var tw = document.getElementById("tw");
  var ro = document.getElementById("ro");
  var bei = document.getElementById("bei");
  
  localtime.innerText = moment().tz("America/Sao_Paulo").format("HH:mm");
  ny.innerText = moment().tz("America/New_York").format("HH:mm");
  tw.innerText = moment().tz("Asia/Taipei").format("HH:mm");
  ro.innerText = moment().tz("Europe/Rome").format("HH:mm");
  bei.innerText = moment().tz("Asia/Shanghai").format("HH:mm");
  
subject: define vars