//clock.js
$(document).ready(function(){
	$('#countdownTimer').countdown({until: countdownDate, format: 'DHMS', onTick: customCountdown}); 

});
function customCountdown(periods) {
	$('#countdownTimerDays').text(periods[3]); 
	$('#countdownTimerHours').text(periods[4]); 
	$('#countdownTimerMinutes').text(periods[5]); 
	$('#countdownTimerSeconds').text(periods[6]);
}