// JavaScript Document
/**
* jQuery.timers - Timer abstractions for jQuery
* Written by Blair Mitchelmore (blair DOT mitchelmore AT gmail DOT com)
* Licensed under the WTFPL (http://sam.zoy.org/wtfpl/).
* Date: 2009/02/08
*
* @author Blair Mitchelmore
* @version 1.1.2
*
**/

jQuery.fn.extend({
	everyTime: function (interval, label, fn, times, belay)
	{
		return this.each(function ()
		{
			jQuery.timer.add(this, interval, label, fn, times, belay);
		});
	},
	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.event.special

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, belay)
		{
			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 (times && times.constructor != Number)
			{
				belay = !!times;
				times = 0;
			}

			times = times || 0;
			belay = belay || false;

			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 (belay && this.inProgress)
					return;
				this.inProgress = true;
				if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
					jQuery.timer.remove(element, label, fn);
				this.inProgress = false;
			};

			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);
	});
});