jQuery.fn.extend({
	everyTime: function(interval, label, fn, times) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, times);
		});
	},
	oneTime: function(interval, label, fn) {
		return this.each(function() {
			jQuery.timer.add(this, interval, label, fn, 1);
		});
	},
	stopTime: function(label, fn) {
		return this.each(function() {
			jQuery.timer.remove(this, label, fn);
		});
	}
});

jQuery.extend({
	timer: {
		global: [],
		guid: 1,
		dataKey: "jQuery.timer",
		regex: /^([0-9]+(?:\.[0-9]*)?)\s*(.*s)?$/,
		powers: {
			// Yeah this is major overkill...
			'ms': 1,
			'cs': 10,
			'ds': 100,
			's': 1000,
			'das': 10000,
			'hs': 100000,
			'ks': 1000000
		},
		timeParse: function(value) {
			if (value == undefined || value == null)
				return null;
			var result = this.regex.exec(jQuery.trim(value.toString()));
			if (result[2]) {
				var num = parseFloat(result[1]);
				var mult = this.powers[result[2]] || 1;
				return num * mult;
			} else {
				return value;
			}
		},
		add: function(element, interval, label, fn, times) {
			var counter = 0;

			if (jQuery.isFunction(label)) {
				if (!times)
					times = fn;
				fn = label;
				label = interval;
			}

			interval = jQuery.timer.timeParse(interval);

			if (typeof interval != 'number' || isNaN(interval) || interval < 0)
				return;

			if (typeof times != 'number' || isNaN(times) || times < 0)
				times = 0;

			times = times || 0;

			var timers = jQuery.data(element, this.dataKey) || jQuery.data(element, this.dataKey, {});

			if (!timers[label])
				timers[label] = {};

			fn.timerID = fn.timerID || this.guid++;

			var handler = function() {
				if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
					jQuery.timer.remove(element, label, fn);
			};

			handler.timerID = fn.timerID;

			if (!timers[label][fn.timerID])
				timers[label][fn.timerID] = window.setInterval(handler,interval);

			this.global.push( element );

		},
		remove: function(element, label, fn) {
			var timers = jQuery.data(element, this.dataKey), ret;

			if ( timers ) {

				if (!label) {
					for ( label in timers )
						this.remove(element, label, fn);
				} else if ( timers[label] ) {
					if ( fn ) {
						if ( fn.timerID ) {
							window.clearInterval(timers[label][fn.timerID]);
							delete timers[label][fn.timerID];
						}
					} else {
						for ( var fn in timers[label] ) {
							window.clearInterval(timers[label][fn]);
							delete timers[label][fn];
						}
					}

					for ( ret in timers[label] ) break;
					if ( !ret ) {
						ret = null;
						delete timers[label];
					}
				}

				for ( ret in timers ) break;
				if ( !ret )
					jQuery.removeData(element, this.dataKey);
			}
		}
	}
});

jQuery(window).bind("unload", function() {
	jQuery.each(jQuery.timer.global, function(index, item) {
		jQuery.timer.remove(item);
	});
});

// plugin definition
$.fn.webNewsFeed = function(options) {
	var opts = $.extend({delayTime:5000}, $.fn.webNewsFeed.defaults, options);

	return this.each(
		function()
		{
			var $this = $(this);

			var dt = new Date();

			$.getJSON(
				"/web-feed.php?" + 't=' + dt.getTime(),
				function (data)
				{
					var $searchList = $("<ul/>").attr("id", $this.attr("id") + "-news-list").attr('class', 'web-news-list').appendTo($this);

					data.results;

					$.each(data.results, function(i,item){

						$('<li/>').attr('id', $this.attr('id') + '-news-list-' + i).attr('class', i == 0 ? 'active' : '').html(
							$.fn.webNewsFeed.resultItem(item)
						).appendTo($searchList);

					});

					$.fn.webNewsFeed.count = data.total;
					$.fn.webNewsFeed.current = 1;

					$this.append(
						$('<div/>').attr('class', 'news-list-pager').html(
							$('<span/>').attr('class', 'news-list-pager-pages')
							.attr('id', $searchList.attr('id') + '-pages')
							.html(
								$('<span/>').attr('class', 'news-list-pager-currentPage').attr('id', $searchList.attr('id') + '-page')
							)
							.append(' / ' + data.total)
						)
						.append(
							$('<span/>').attr('class', 'news-list-pager-preveous').attr('id', $searchList.attr('id') + '-prev').attr('list', $searchList.attr('id')).html('<b>Previous</b>').click($.fn.webNewsFeed.previousClick)
						)
						.append(
							$('<span/>').attr('class', 'news-list-pager-pause').attr('id', $searchList.attr('id') + '-pause').attr('list', $searchList.attr('id')).html('<b>Pause</b>').click($.fn.webNewsFeed.pauseClick)
						)
						.append($('<span/>').attr('class', 'news-list-pager-next').attr('id', $searchList.attr('id') + '-next').attr('list', $searchList.attr('id')).html('<b>Next</b>').click($.fn.webNewsFeed.nextClick).everyTime(opts.delayTime, $.fn.webNewsFeed.onTimer))
					);


					$.fn.webNewsFeed.setButtons($searchList.attr('id'));

				}
			);
		}
	);

};
// plugin defaults - added as a property on our plugin function
$.fn.webNewsFeed.defaults = {
};

$.fn.webNewsFeed.count = 0;
$.fn.webNewsFeed.current = 0;
$.fn.webNewsFeed.paused = false;


$.fn.webNewsFeed.onTimer = function() {
	if(!$.fn.webNewsFeed.paused)
		$.fn.webNewsFeed.nextNews(this, false);
}


$.fn.webNewsFeed.resultItem = function(item) {

	s = item.description;

	if($.browser.msie) {
		s = s.replace(/\&apos;/gi , "&#39;");
	}

	return s;

};

$.fn.webNewsFeed.pauseClick = function() {
	$(this).toggleClass('paused');

	if($.fn.webNewsFeed.paused) {
		$.fn.webNewsFeed.paused = false;
	} else {
		$.fn.webNewsFeed.paused = true;
	}
}


$.fn.webNewsFeed.enablePause = function(listId) {
	if(!$.fn.webNewsFeed.paused) {
		$btn = $('#' + listId + '-pause').click();
	}
}

$.fn.webNewsFeed.previousClick = function() {
	$this = $(this);

	if(!$this.hasClass('disabled')) {

		listId = $(this).attr('list');

		$.fn.webNewsFeed.enablePause(listId);

		$list = $('#' + listId);
		$active = $list.find('li.active');

		$.fn.webNewsFeed.current = $.fn.webNewsFeed.current == 1  ? $.fn.webNewsFeed.count : $.fn.webNewsFeed.current - 1;

		$active.removeClass('active');
		$list.find('li:eq(' + ($.fn.webNewsFeed.current - 1) + ')').addClass('active');
		$.fn.webNewsFeed.setButtons(listId);
	}
};


$.fn.webNewsFeed.nextClick = function() {
	$.fn.webNewsFeed.nextNews(this, true);
}

$.fn.webNewsFeed.nextNews = function(caller,enablePause) {

	$this = $(caller);

	if(!$this.hasClass('disabled')) {

		listId = $this.attr('list');

		if(enablePause) {
			$.fn.webNewsFeed.enablePause(listId);
		}

		$list = $('#' + listId);
		$active = $list.find('li.active');

		$.fn.webNewsFeed.current = $.fn.webNewsFeed.current == $.fn.webNewsFeed.count  ? 1 : $.fn.webNewsFeed.current + 1;

		$active.removeClass('active');
		$list.find('li:eq(' + ($.fn.webNewsFeed.current - 1) + ')').addClass('active');
		$.fn.webNewsFeed.setButtons(listId);
	}

}


$.fn.webNewsFeed.setButtons = function(listId) {

	$pageNum = $('#' + listId + '-page');

	$pageNum.html($.fn.webNewsFeed.current);
}