jQuery addClass example

Change class name on click in jQuery

by Faisal Khan Janjua

HTML

<h1></h1>

JavaScript

var totalSeconds = 5000;
function formatTime(parm){
	var minutes = Math.floor(parm / 60);
  var seconds = parm - minutes * 60;
  if(minutes<10){
  	minutes = '0'+minutes;
  }
  if(seconds<10){
  	seconds = '0'+seconds;
  }
  return minutes +':'+ seconds;
}

var timer, secondsNow;
secondsNow = totalSeconds;
timer = setInterval(function(){
  secondsNow--;
  if (secondsNow < 1) { clearInterval(timer); }
  jQuery('h1').text(formatTime(secondsNow));
}, 1000);

jQuery('h1').text(formatTime(totalSeconds));