function updateClock ( )
{
  var currentTime = new Date( );

  var currentDay = currentTime.getDate();
  var currentMonths = currentTime.getMonth();
  var currentYear = currentTime.getFullYear();
  var currentMonth = " ";

  switch(currentMonths)
  {   
     case 0:
              currentMonth = "Enero";
              break;
     case 1:
              currentMonth = "Febrero";
              break;
     case 2:
              currentMonth = "Marzo";
              break;
     case 3:
              currentMonth = "Abril";
              break;
     case 4:
              currentMonth = "Mayo";
              break;
     case 5:
              currentMonth = "Junio";
              break;
     case 6:
              currentMonth = "Julio";
              break;
     case 7:
              currentMonth = "Agosto";
              break;
     case 8:
              currentMonth = "Septiembre";
              break;
     case 9:
              currentMonth = "Octubre";
              break;
     case 10:
              currentMonth = "Noviembre";
              break;
     case 11:
              currentMonth = "Diciembre";
              break;
  }
  
  var currentHours = currentTime.getHours ( );
  var currentMinutes = currentTime.getMinutes ( );
  var currentSeconds = currentTime.getSeconds ( );

  // Pad the minutes and seconds with leading zeros, if required
  currentMinutes = ( currentMinutes < 10 ? "0" : "" ) + currentMinutes;
  currentSeconds = ( currentSeconds < 10 ? "0" : "" ) + currentSeconds;

  // Choose either "AM" or "PM" as appropriate
  var timeOfDay = ( currentHours < 12 ) ? "am." : "pm.";

  // Convert the hours component to 12-hour format if needed
  currentHours = ( currentHours > 12 ) ? currentHours - 12 : currentHours;

  // Convert an hours component of "0" to "12"
  currentHours = ( currentHours == 0 ) ? 12 : currentHours;

  // Compose the string for display
  var currentTimeString = currentHours + ":" + currentMinutes + ":" + currentSeconds + " " + timeOfDay;
  var currentDateString =  currentDay + " de " + currentMonth + " de " + currentYear;

  document.getElementById("fecha").innerHTML = currentDateString;
  // Update the time display
  document.getElementById("reloj").innerHTML = currentTimeString;
}