/*Code*/
/* absolute examples:
      const target = "Mar 17 2010 3:30:00 PM";
      const target = "2010, 3, 17, 15:30:00";
      const target = date(0) +  "6:00:00 PM"; *//* today    *//*
      const target = date(1) + "12:30:00 AM"; *//* tomorrow *//*
   relative examples:
      const target = [1, 15, 0]; *//* 1 hour, 15 minutes    *//*
      const target = [0, 2, 30]; *//* 2 minutes, 30 seconds *//*
*/
const target = [0, 0, 10];
function date(increment) {
  return new Date(new Date().getFullYear(), new Date().getMonth(), new Date().getDate() + increment).
    toDateString() + String.fromCharCode(32);
}
function load() {
  function absolute(string) {
    return new Date(string);
  }
  function relative(hour, minute, second) {
    return new Date(beginTime.getTime() + hour * 3600000 + minute * 60000 + second * 1000);
  }
  function clock(string) {
    return (string.length == 10 ? "0" : "") + string;
  }
  function count(t0, t1) {
    var millisecond = t1.getTime() - t0.getTime();
    var hour = Math.floor(millisecond / 3600000);
    var minute = Math.floor(millisecond %3600000 / 60000);
    var second = Math.floor(millisecond %3600000 %60000 / 1000);
    var decimal = Math.floor(millisecond %3600000 %60000 %1000 / 10);
    if (t0 > t1) {
      hour = 0; minute = 0; second = 0; decimal = 0;
      clearInterval(that.tick); delete that.tick;
      sound.play(ios.newFileURI(file));
      close();
    }
    hour = (hour < 10 ? "0" : "") + hour;
    minute = (minute < 10 ? "0" : "") + minute;
    second = (second < 10 ? "0" : "") + second;
    decimal = (decimal < 10 ? "0" : "") + decimal;
    return hour + ":" + minute + ":" + second + "." + decimal;
  }
  var ios = Components.classes["@mozilla.org/network/io-service;1"].
    getService(Components.interfaces.nsIIOService);
  var sound = Components.classes["@mozilla.org/sound;1"].
    getService(Components.interfaces.nsISound);
  var file = Components.classes["@mozilla.org/file/local;1"].
    createInstance(Components.interfaces.nsILocalFile);
  file.initWithPath("C:\\WINDOWS\\Media\\notify.wav");
  if (this.tick) {
    clearInterval(this.tick); delete this.tick;
  } else {
    var that = this;
    var beginTime = new Date();
    if (target.constructor == String) {
      var endTime = absolute(target);
    } else {
      var endTime = relative(target[0], target[1], target[2]);
    }
    this.tick = setInterval(function() {
      var currentTime = new Date();
      document.getElementById("clock1").value = clock(beginTime.toLocaleTimeString());
      document.getElementById("clock2").value = clock(currentTime.toLocaleTimeString());
      document.getElementById("clock3").value = clock(endTime.toLocaleTimeString());
      document.getElementById("count1").value = count(beginTime, currentTime);
      document.getElementById("count2").value = count(currentTime, endTime);
    }, 10);
  }
}