/**

 * Interface Elements for jQuery

 * FX - pulsate

 * 

 * http://interface.eyecon.ro

 * 

 * Copyright (c) 2006 Stefan Petre

 * Dual licensed under the MIT (MIT-LICENSE.txt) 

 * and GPL (GPL-LICENSE.txt) licenses.

 *   

 *

 */

/**

 * @name Bounce

 * @description makes the element to pulsate

 * @param Mixed speed animation speed, integer for miliseconds, string ['slow' | 'normal' | 'fast']

 * @param Integer times how many times to pulsate

 * @param Function callback (optional) A function to be executed whenever the animation completes.

 * @type jQuery

 * @cat Plugins/Interface

 * @author Stefan Petre

 */

jQuery.fn.Pulsate = function(speed, times, callback) {

	return this.queue('interfaceFX',function(){

		if (!jQuery.fxCheckTag(this)) {

			jQuery.dequeue(this, 'interfaceFX');

			return false;

		}

		var fx = new jQuery.fx.Pulsate(this, speed, times, callback);

		fx.pulse();

	});

};

jQuery.fx.Pulsate = function (el, speed, times, callback)

{	

	var z = this;

	z.times = times;

	z.cnt = 1;

	z.el = el;

	z.speed = speed;

	z.callback = callback;

	jQuery(z.el).show();

	z.pulse = function()

	{

		z.cnt ++;

		z.e = new jQuery.fx(

			z.el, 

			jQuery.speed(

				z.speed, 

				function(){

					z.ef = new jQuery.fx(

						z.el, 

						jQuery.speed(

							z.speed,

							function()

							{

								if (z.cnt <= z.times)

									z.pulse();

								else {

									jQuery.dequeue(z.el, 'interfaceFX');

									if (z.callback && z.callback.constructor == Function) {

										z.callback.apply(z.el);

									}

								}

							}

						), 

						'opacity'

					);

					z.ef.custom(0,1);

				}

			), 

			'opacity'

		);

		z.e.custom(1,0);

	};

};