/*
 * jQuery UI Effects Pulsate
 *
 * Copyright (c) 2008 Aaron Eisenberger (aaronchi@gmail.com)
 * 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
               
                // Adjust
                if (mode == 'hide') times--;
                if (el.is(':hidden')) { // Show fadeIn
                        el.css('opacity', 0);
                        el.show(); // Show
                        el.animate({opacity: 1}, o.duration / 2, o.options.easing);
                        times = times-2;
                }
               
                // Animate
                for (var i = 0; i < times; i++) { // Pulsate
                        el.animate({opacity: 0}, o.duration / 2, o.options.easing).animate({opacity: 1}, o.duration / 2, o.options.easing);
                };
                if (mode == 'hide') { // Last Pulse
                        el.animate({opacity: 0}, o.duration / 2, o.options.easing, function(){
                                el.hide(); // Hide
                                if(o.callback) o.callback.apply(this, arguments); // Callback
                        });
                } else {
                        el.animate({opacity: 0}, o.duration / 2, o.options.easing).animate({opacity: 1}, o.duration / 2, o.options.easing, function(){
                                if(o.callback) o.callback.apply(this, arguments); // Callback
                        });
                };
                el.queue('fx', function() { el.dequeue(); });
                el.dequeue();
        });
       
};

})(jQuery);