function evt_countDownTimer(end) {
	var container = XPS_elem('countdown_container');
	container._end = end;
	
	window.onload = evt_updateCountDownTimer;
}

function evt_updateCountDownTimer() {
	var obj = XPS_elem('countdown_container');
	
	// calculate days
	var now = new Date();
	var time = Math.abs(obj._end.getTime() - now.getTime());
	
	var days = Math.floor(time / (1000 * 60 * 60 * 24));
	var hours = Math.floor((time - (1000 * 60 * 60 * 24 * days)) / (1000 * 60 * 60));
	var minutes = Math.floor((time - (1000 * 60 * 60 * 24 * days) - (1000 * 60 * 60 * hours)) / (1000 * 60));
	var seconds = Math.floor((time - (1000 * 60 * 60 * 24 * days) - (1000 * 60 * 60 * hours) - (1000 * 60 * minutes)) / 1000);
	
	obj.update(
		'<div class="impact" style="font-size: 24px; color: #333333;">... nog ' + days + ' dagen, </div>' + 
		'<div class="impact" style="font-size: 18px; color: #FF6600;">' + hours + ' uur, ' + minutes + ' minuten </div>' + 
		'<div class="impact" style="font-size: 16px; color: #993300;">en ' + seconds + ' seconden ...</div>'
	);
	
	setTimeout('evt_updateCountDownTimer()', 1000);
}