/*
 * jQuery jclock - Clock plugin - v 0.2.1
 * http://plugins.jquery.com/project/jclock
 *
 * Copyright (c) 2007-2008 Doug Sparling <http://www.dougsparling.com>
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 */
(function($) {
$.fn.jclock = function(options) {
	var version = '0.2.1';

	// options
	var opts = $.extend({}, $.fn.jclock.defaults, options);
		
	return this.each(function() {
	$this = $(this);
	$this.timerID = null;
	$this.running = false;

	var o = $.meta ? $.extend({}, opts, $this.data()) : opts;

	$this.timeNotation = o.timeNotation;
	$this.am_pm = o.am_pm;
	$this.utc = o.utc;
	$this.utc_offset = o.utc_offset;

	$this.css({
		fontFamily: o.fontFamily,
		fontSize: o.fontSize,
		backgroundColor: o.background,
		color: o.foreground
	});

	$.fn.jclock.startClock($this);

	});
};
	
$.fn.jclock.startClock = function(el) {
	$.fn.jclock.stopClock(el);
	$.fn.jclock.displayTime(el);
}
$.fn.jclock.stopClock = function(el) {
	if(el.running) {
	clearTimeout(el.timerID);
	}
	el.running = false;
}
$.fn.jclock.displayTime = function(el) {
	var time = $.fn.jclock.getTime(el);
	el.html(time);
	el.timerID = setTimeout(function(){$.fn.jclock.displayTime(el)},30000);
}
$.fn.jclock.getTime = function(el) {
	var now = new Date();
	var hours, minutes, seconds;

	if(el.utc == true) {
	if(el.utc_offset != 0) {
		now.setUTCHours(now.getUTCHours()+el.utc_offset);
	}
	hours = now.getUTCHours();
	minutes = now.getUTCMinutes();
	seconds = now.getUTCSeconds();
	} else {
	hours = now.getHours();
	minutes = now.getMinutes();
	seconds = now.getSeconds();
	}

	var am_pm_text = '';
	(hours >= 12) ? am_pm_text = " P.M." : am_pm_text = " A.M.";

	if (el.timeNotation == '12h') {
	hours = ((hours > 12) ? hours - 12 : hours);
	} else {
	hours   = ((hours <  10) ? "0" : "") + hours;
	}

	minutes = ((minutes <  10) ? "0" : "") + minutes;
	seconds = ((seconds <  10) ? "0" : "") + seconds;

	var date = new Date();
	//var timeNow = date.getDay() + "/" + date.getMonth() + "/" + date.getYear() + " ";
	var timeNow = date.toDateString() + " ";

	timeNow += hours + ":" + minutes;/* + ":" + seconds;*/
	if ( (el.timeNotation == '12h') && (el.am_pm == true) ) {
	timeNow += am_pm_text;
	}

	return timeNow;
};
	
// plugin defaults
$.fn.jclock.defaults = {
	timeNotation: '24h',
	am_pm: false,
	utc: false,
	fontFamily: '',
	fontSize: '',
	foreground: '',
	background: '',
	utc_offset: 0
};

})(jQuery);