carlosflorencio/timer.html

## timer.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>JavaScript CountUp Timer - Praveen Lobo</title>
<script type="text/javascript">
/**********************************************************************************************
* CountUp script by Praveen Lobo (http://PraveenLobo.com/blog/javascript-countup-timer/)
* This notice MUST stay intact(in both JS file and SCRIPT tag) for legal use.
* http://praveenlobo.com/blog/disclaimer/
**********************************************************************************************/
function CountUp(initDate, id){
    this.beginDate = new Date(initDate);
    this.countainer = document.getElementById(id);
    this.numOfDays = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
    this.borrowed = 0, this.years = 0, this.months = 0, this.days = 0;
    this.hours = 0, this.minutes = 0, this.seconds = 0;
    this.updateNumOfDays();
    this.updateCounter();
}

CountUp.prototype.updateNumOfDays=function(){
    var dateNow = new Date();
    var currYear = dateNow.getFullYear();
    if ( (currYear % 4 == 0 && currYear % 100 != 0 ) || currYear % 400 == 0 ) {
        this.numOfDays[1] = 29;
    }
    var self = this;
    setTimeout(function(){self.updateNumOfDays();}, (new Date((currYear+1), 1, 2) - dateNow));
}

CountUp.prototype.datePartDiff=function(then, now, MAX){
    var diff = now - then - this.borrowed;
    this.borrowed = 0;
    if ( diff > -1 ) return diff;
    this.borrowed = 1;
    return (MAX + diff);
}

CountUp.prototype.calculate=function(){
    var currDate = new Date();
    var prevDate = this.beginDate;
    this.seconds = this.datePartDiff(prevDate.getSeconds(), currDate.getSeconds(), 60);
    this.minutes = this.datePartDiff(prevDate.getMinutes(), currDate.getMinutes(), 60);
    this.hours = this.datePartDiff(prevDate.getHours(), currDate.getHours(), 24);
    this.days = this.datePartDiff(prevDate.getDate(), currDate.getDate(), this.numOfDays[currDate.getMonth()]);
    this.months = this.datePartDiff(prevDate.getMonth(), currDate.getMonth(), 12);
    this.years = this.datePartDiff(prevDate.getFullYear(), currDate.getFullYear(),0);
}

CountUp.prototype.addLeadingZero=function(value){
    return value < 10 ? ("0" + value) : value;
}

CountUp.prototype.formatTime=function(){
    this.seconds = this.addLeadingZero(this.seconds);
    this.minutes = this.addLeadingZero(this.minutes);
    this.hours = this.addLeadingZero(this.hours);
}

CountUp.prototype.updateCounter=function(){
    this.calculate();
    this.formatTime();
    this.countainer.innerHTML ="<strong>" + this.years + "</strong> <small>" + (this.years == 1? "year" : "years") + "</small>" +
        " <strong>" + this.months + "</strong> <small>" + (this.months == 1? "month" : "months") + "</small>" +
        " <strong>" + this.days + "</strong> <small>" + (this.days == 1? "day" : "days") + "</small>" +
        " <strong>" + this.hours + "</strong> <small>" + (this.hours == 1? "hour" : "hours") + "</small>" +
        " <strong>" + this.minutes + "</strong> <small>" + (this.minutes == 1? "minute" : "minutes") + "</small>" +
        " <strong>" + this.seconds + "</strong> <small>" + (this.seconds == 1? "second" : "seconds") + "</small>";
    var self = this;
    setTimeout(function(){self.updateCounter();}, 1000);
}

window.onload=function(){ new CountUp('April 16, 2010 19:00:00', 'counter'); }

</script>
</head>
<body>
<div id="counter">Contents of this DIV will be replaced by the timer</div>
</body>
</html>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
	<head>
	<title>JavaScript CountUp Timer - Praveen Lobo</title>
	<script type="text/javascript">
	/**********************************************************************************************
	* CountUp script by Praveen Lobo (http://PraveenLobo.com/blog/javascript-countup-timer/)
	* This notice MUST stay intact(in both JS file and SCRIPT tag) for legal use.
	* http://praveenlobo.com/blog/disclaimer/
	**********************************************************************************************/
	function CountUp(initDate, id){
	this.beginDate = new Date(initDate);
	this.countainer = document.getElementById(id);
	this.numOfDays = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
	this.borrowed = 0, this.years = 0, this.months = 0, this.days = 0;
	this.hours = 0, this.minutes = 0, this.seconds = 0;
	this.updateNumOfDays();
	this.updateCounter();
	}

	CountUp.prototype.updateNumOfDays=function(){
	var dateNow = new Date();
	var currYear = dateNow.getFullYear();
	if ( (currYear % 4 == 0 && currYear % 100 != 0 ) \|\| currYear % 400 == 0 ) {
	this.numOfDays[1] = 29;
	}
	var self = this;
	setTimeout(function(){self.updateNumOfDays();}, (new Date((currYear+1), 1, 2) - dateNow));
	}

	CountUp.prototype.datePartDiff=function(then, now, MAX){
	var diff = now - then - this.borrowed;
	this.borrowed = 0;
	if ( diff > -1 ) return diff;
	this.borrowed = 1;
	return (MAX + diff);
	}

	CountUp.prototype.calculate=function(){
	var currDate = new Date();
	var prevDate = this.beginDate;
	this.seconds = this.datePartDiff(prevDate.getSeconds(), currDate.getSeconds(), 60);
	this.minutes = this.datePartDiff(prevDate.getMinutes(), currDate.getMinutes(), 60);
	this.hours = this.datePartDiff(prevDate.getHours(), currDate.getHours(), 24);
	this.days = this.datePartDiff(prevDate.getDate(), currDate.getDate(), this.numOfDays[currDate.getMonth()]);
	this.months = this.datePartDiff(prevDate.getMonth(), currDate.getMonth(), 12);
	this.years = this.datePartDiff(prevDate.getFullYear(), currDate.getFullYear(),0);
	}

	CountUp.prototype.addLeadingZero=function(value){
	return value < 10 ? ("0" + value) : value;
	}

	CountUp.prototype.formatTime=function(){
	this.seconds = this.addLeadingZero(this.seconds);
	this.minutes = this.addLeadingZero(this.minutes);
	this.hours = this.addLeadingZero(this.hours);
	}

	CountUp.prototype.updateCounter=function(){
	this.calculate();
	this.formatTime();
	this.countainer.innerHTML ="<strong>" + this.years + "</strong> <small>" + (this.years == 1? "year" : "years") + "</small>" +
	" <strong>" + this.months + "</strong> <small>" + (this.months == 1? "month" : "months") + "</small>" +
	" <strong>" + this.days + "</strong> <small>" + (this.days == 1? "day" : "days") + "</small>" +
	" <strong>" + this.hours + "</strong> <small>" + (this.hours == 1? "hour" : "hours") + "</small>" +
	" <strong>" + this.minutes + "</strong> <small>" + (this.minutes == 1? "minute" : "minutes") + "</small>" +
	" <strong>" + this.seconds + "</strong> <small>" + (this.seconds == 1? "second" : "seconds") + "</small>";
	var self = this;
	setTimeout(function(){self.updateCounter();}, 1000);
	}

	window.onload=function(){ new CountUp('April 16, 2010 19:00:00', 'counter'); }

	</script>
	</head>
	<body>
	<div id="counter">Contents of this DIV will be replaced by the timer</div>
	</body>
	</html>