Вы также можете предварительно заполнить свою страницу несколькими счетчиками, если хотите.Функция CountUp принимает аргумент объекта date для даты, на которую он рассчитывает.new Date()
всегда будет возвращать текущее время.Я только что создал еще несколько <div>
элементов и создал еще пару CountUp
функций с разными датами в примере ниже.Внесенные мной изменения приведены внизу.
<!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/techblog/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.days + "</strong> " +
"<strong>" + this.hours + "</strong>:" +
"<strong>" + this.minutes + "</strong>:" +
"<strong>" + this.seconds + "</strong>";
var self = this;
setTimeout(function(){self.updateCounter();}, 1000);
}
window.onload=function(){
var counters = [
new CountUp(new Date(), 'counter1'), // Today
new CountUp(new Date(2012, 0, 1), 'counter2'), // Jan 1 2012
new CountUp(new Date(2011, 11, 25), 'counter3') // Dec 25, 2011
];
}
</script>
</head>
<body>
<div id="counter1">Contents of this DIV will be replaced by the timer</div>
<div id="counter2">Contents of this DIV will be replaced by the timer</div>
<div id="counter3">Contents of this DIV will be replaced by the timer</div>
</body>
</html>