/*
* jQuery UI Effects Pulsate 1.7.2
*
* Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Effects/Pulsate
*
* Depends:
*	effects.core.js
*/
(function($) {

    $.effects.pulsate = function(o) {

        return this.queue(function() {

            // Create element
            var el = $(this);

            // Set options
            var mode = $.effects.setMode(el, o.options.mode || 'show'); // Set Mode
            var times = o.options.times || 5; // Default # of times
            var duration = o.duration ? o.duration / 2 : $.fx.speeds._default / 2;

            // Adjust
            if (mode == 'hide') times--;
            if (el.is(':hidden')) { // Show fadeIn
                el.css('opacity', 0);
                el.show(); // Show
                el.animate({ opacity: 1 }, duration, o.options.easing);
                times = times - 2;
            }

            // Animate
            for (var i = 0; i < times; i++) { // Pulsate
                el.animate({ opacity: 0 }, duration, o.options.easing).animate({ opacity: 1 }, duration, o.options.easing);
            };
            if (mode == 'hide') { // Last Pulse
                el.animate({ opacity: 0 }, duration, o.options.easing, function() {
                    el.hide(); // Hide
                    if (o.callback) o.callback.apply(this, arguments); // Callback
                });
            } else {
                el.animate({ opacity: 0 }, duration, o.options.easing).animate({ opacity: 1 }, duration, o.options.easing, function() {
                    if (o.callback) o.callback.apply(this, arguments); // Callback
                });
            };
            el.queue('fx', function() { el.dequeue(); });
            el.dequeue();
        });

    };

})(jQuery);