/public/javascripts/countdown.js

/*

 * Source : http://stuntsnippets.com/javascript-countdown/

 */



var jsCountdown = function () {

	var time_left = 10; //number of seconds for countdown

	var output_element_id = 'countdown_time';

	var keep_counting = 1;

	var no_time_left_message = 'Countdown over';



	function countdown() {

		if(time_left < 2) {

			keep_counting = 0;

		}



		time_left = time_left - 1;

	}



	function add_leading_zero(n) {

		if(n.toString().length < 2) {

			return '0' + n;

		} else {

			return n;

		}

	}



	function format_output() {

		var hours, minutes, seconds;

		seconds = time_left % 60;

		minutes = Math.floor(time_left / 60) % 60;

		hours = Math.floor(time_left / 3600);



		seconds = add_leading_zero( seconds );

		minutes = add_leading_zero( minutes );

		hours = add_leading_zero( hours );



		return hours + ':' + minutes + ':' + seconds;

	}



	function show_time_left() {

		document.getElementById(output_element_id).innerHTML = format_output();//time_left;

	}



	function no_time_left() {

		//document.getElementById(output_element_id).innerHTML = no_time_left_message;

		window.location.reload();

	}



	return {

		count: function () {

			countdown();

			show_time_left();

		},

		timer: function () {

			jsCountdown.count();



			if(keep_counting) {

				setTimeout("jsCountdown.timer();", 1000);

			} else {

				no_time_left();

			}

		},

		init: function (time, element_id) {

			time_left = time;

			output_element_id = element_id;

			jsCountdown.timer();

		}

	};

}();



//time to countdown in seconds, and element ID

//jsCountdown.init(3673, 'countdown_time');