(function($)
	{
	$.fn.countDown = function (options) 
		{
		config = {};
		$.extend(config, options);
		diffSecs = this.setCountDown(config);
		$(this).doCountDown($(this).attr('id'), diffSecs, 500);
		return this;
		};
	$.fn.setCountDown = function (options) 
		{
		var	targetTime = new Date(options.targetDate.month + '/' + options.targetDate.day + '/' + options.targetDate.year + ' 0:0:0');
		var nowTime = new Date();
		diffSecs = Math.floor((targetTime.valueOf()-nowTime.valueOf())/1000);
		$.data(this[0], 'diffSecs', diffSecs);
		return diffSecs;
		};
	function setCountDownDigit(string)
		{
		string = string.toString();
		if(string.length < 2)
			{
			string = '0'+string;
			}
		return string;
		}
		
	function printCountDownDigit(id, secs, mins, hours, days)
		{
		document.getElementById(id).innerHTML = setCountDownDigit(days)+':'+setCountDownDigit(hours)+':'+setCountDownDigit(mins)+':'+setCountDownDigit(secs);
		}
	$.fn.doCountDown = function (id, diffSecs, duration) 
		{
		$this = $('#' + id);
		if(diffSecs <= 0)
			{
			diffSecs = 0;
			if($.data($this[0], 'timer'))
				{
				clearTimeout($.data($this[0], 'timer'));
				}
			}
		secs = diffSecs % 60;
		mins = Math.floor(diffSecs/60)%60;
		hours = Math.floor(diffSecs/60/60)%24;
		days = Math.floor(diffSecs/60/60/24);
		printCountDownDigit(id, secs, mins, hours, days);
		$.data($this[0], 'diffSecs', diffSecs);
		e = $this;
		t = setTimeout(function() { e.doCountDown(id, diffSecs-1) } , 1000);
		$.data(e[0], 'timer', t);
		};
	})(jQuery);