text: 
  function checkTime(i) {
      if (i<10) {
          i="0" + i;
      }
      return i;
  }
  
  function startTime() {
      var today = new Date();
      var h = today.getHours();
      var m = today.getMinutes();
      var s = today.getSeconds();
      
      m = checkTime(m);
      s = checkTime(s);
      document.getElementById('txt').innerHTML=h+":"+m+":"+s;
      t = setTimeout('startTime()',500);
  }