unps.us-Shortener/assets/js/jquery.countdown.js

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/**
* @name jQuery Countdown Plugin
* @author Martin Angelov
* @version 1.0
* @url http://tutorialzine.com/2011/12/countdown-jquery/
* @license MIT License
*/
(function($){
// Number of seconds in every time division
var days = 24*60*60,
hours = 60*60,
minutes = 60;
// Creating the plugin
$.fn.countdown = function(prop){
var options = $.extend({
callback : function(){},
timestamp : 0
},prop);
var left, d, h, m, s, positions;
// Initialize the plugin
init(this, options);
positions = this.find('.position');
(function tick(){
// Time left
left = Math.floor((options.timestamp - (new Date())) / 1000);
if(left < 0){
left = 0;
}
// Number of days left
d = Math.floor(left / days);
updateDuo(0, 1, d);
left -= d*days;
// Number of hours left
h = Math.floor(left / hours);
updateDuo(2, 3, h);
left -= h*hours;
// Number of minutes left
m = Math.floor(left / minutes);
updateDuo(4, 5, m);
left -= m*minutes;
// Number of seconds left
s = left;
updateDuo(6, 7, s);
// Calling an optional user supplied callback
options.callback(d, h, m, s);
// Scheduling another call of this function in 1s
setTimeout(tick, 1000);
})();
// This function updates two digit positions at once
function updateDuo(minor,major,value){
switchDigit(positions.eq(minor),Math.floor(value/10)%10);
switchDigit(positions.eq(major),value%10);
}
return this;
};
function init(elem, options){
elem.addClass('countdownHolder');
// Creating the markup inside the container
$.each(['Days','Hours','Minutes','Seconds'],function(i){
$('<span class="count'+this+'">').html(
'<span class="position">\
<span class="digit static">0</span>\
</span>\
<span class="position">\
<span class="digit static">0</span>\
</span>'
).appendTo(elem);
if(this!="Seconds"){
elem.append('<span class="countDiv countDiv'+i+'"></span>');
}
});
}
// Creates an animated transition between the two numbers
function switchDigit(position,number){
var digit = position.find('.digit')
if(digit.is(':animated')){
return false;
}
if(position.data('digit') == number){
// We are already showing this number
return false;
}
position.data('digit', number);
var replacement = $('<span>',{
'class':'digit',
css:{
top:'-2.1em',
opacity:0
},
html:number
});
// The .static class is added when the animation
// completes. This makes it run smoother.
digit
.before(replacement)
.removeClass('static')
.animate({top:'2.5em',opacity:0},'fast',function(){
digit.remove();
})
replacement
.delay(100)
.animate({top:0,opacity:1},'fast',function(){
replacement.addClass('static');
});
}
})(jQuery);