A mi me funciona
Código HTML:
Ver original<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"> <script type="text/javascript"> //<![CDATA[
(function($) {
$.fn.countdown = function(toDate, callback) {
var handlers = ['seconds', 'minutes', 'hours', 'days', 'weeks', 'daysLeft'];
function delegate(scope, method) {
return function() { return method.call(scope) }
}
return this.each(function() {
// Convert
if(!(toDate instanceof Date)) {
if(String(toDate).match(/^[0-9]*$/)) {
toDate = new Date(toDate);
} else if( toDate.match(/([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{2,4})\s([0-9]{1,2})\:([0-9]{2})\:([0-9]{2})/) ||
toDate.match(/([0-9]{2,4})\/([0-9]{1,2})\/([0-9]{1,2})\s([0-9]{1,2})\:([0-9]{2})\:([0-9]{2})/)
) {
toDate = new Date(toDate);
} else if(toDate.match(/([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{2,4})/) ||
toDate.match(/([0-9]{2,4})\/([0-9]{1,2})\/([0-9]{1,2})/)
) {
toDate = new Date(toDate)
} else {
throw new Error("Doesn't seen to be a valid date object or string")
}
}
var $this = $(this),
values = {},
lasting = {},
interval = $this.data('countdownInterval'),
currentDate = new Date(),
secondsLeft = Math.floor((toDate.valueOf() - currentDate.valueOf()) / 1000);
function triggerEvents() {
// Evaluate if this node is included in the html
if($this.closest('html').length === 0) {
stop(); // Release the memory
dispatchEvent('removed');
return;
}
// Calculate the time offset
secondsLeft--;
if(secondsLeft < 0) {
secondsLeft = 0;
}
lasting = {
seconds : secondsLeft % 60,
minutes : Math.floor(secondsLeft / 60) % 60,
hours : Math.floor(secondsLeft / 60 / 60) % 24,
days : Math.floor(secondsLeft / 60 / 60 / 24),
weeks : Math.floor(secondsLeft / 60 / 60 / 24 / 7),
daysLeft: Math.floor(secondsLeft / 60 / 60 / 24) % 7
}
for(var i=0; i<handlers.length; i++) {
var eventName = handlers[i];
if(values[eventName] != lasting[eventName]) {
values[eventName] = lasting[eventName];
dispatchEvent(eventName);
}
}
if(secondsLeft == 0) {
stop();
dispatchEvent('finished');
}
}
triggerEvents();
function dispatchEvent(eventName) {
var event = $.Event(eventName);
event.date = new Date(new Date().valueOf() + secondsLeft);
event.value = values[eventName] || "0";
event.toDate = toDate;
event.lasting = lasting;
switch(eventName) {
case "seconds":
case "minutes":
case "hours":
event.value = event.value < 10 ? '0'+event.value.toString() : event.value.toString();
break;
default:
if(event.value) {
event.value = event.value.toString();
}
break;
}
callback.call($this, event);
}
function stop() {
clearInterval(interval);
}
function start() {
$this.data('countdownInterval', setInterval(delegate($this, triggerEvents), 1000));
interval = $this.data('countdownInterval');
}
if(interval) stop();
start();
});
}
})(jQuery);
//]]>
<script type="text/javascript"> //<![CDATA[
$(document).ready(function(){
var d, h, m, s;
$('div#clock').countdown(new Date(2013, 01, 03,20,01), function(event) {
var timeFormat = "%d day(s) %h:%m:%s"
$this = $(this);
switch(event.type) {
case "days":
d = event.value;
break;
case "hours":
h = event.value;
break;
case "minutes":
m = event.value;
break;
case "seconds":
s = event.value;
break;
case "finished":
timeFormat = "tiempo expirado";
$this.fadeTo('slow', 0.5);
break;
}
// Assemble time format
if(d > 0) {
timeFormat = timeFormat.replace(/\%d/, d);
timeFormat = timeFormat.replace(/\(s\)/, Number(d) == 1 ? '' : 's');
} else {
timeFormat = timeFormat.replace(/%d day\(s\)/, '');
}
timeFormat = timeFormat.replace(/\%h/, h);
timeFormat = timeFormat.replace(/\%m/, m);
timeFormat = timeFormat.replace(/\%s/, s);
// Display
$this.html(timeFormat);
});
});
//]]>
Para tu script Enero = 00, Febrero = 01, etc....
Lo de los milisegundos, no se, no uso esos plugins
SAludos
Respuesta: Cambiar mensaje al finalizar 
