/*

 * jQuery UI Effects Bounce 1.8.1

 *

 * Copyright (c) 2010 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/Bounce

 *

 * Depends:

 *	jquery.effects.core.js

 */

(function($) {

$.effects.bounce = function(o) {

	return this.queue(function() {

		// Create element

		var el = $(this), props = ['position','top','left'];

		// Set options

		var mode = $.effects.setMode(el, o.options.mode || 'effect'); // Set Mode

		var direction = o.options.direction || 'up'; // Default direction

		var distance = o.options.distance || 20; // Default distance

		var times = o.options.times || 5; // Default # of times

		var speed = o.duration || 250; // Default speed per bounce

		if (/show|hide/.test(mode)) props.push('opacity'); // Avoid touching opacity to prevent clearType and PNG issues in IE

		// Adjust

		$.effects.save(el, props); el.show(); // Save & Show

		$.effects.createWrapper(el); // Create Wrapper

		var ref = (direction == 'up' || direction == 'down') ? 'top' : 'left';

		var motion = (direction == 'up' || direction == 'left') ? 'pos' : 'neg';

		var distance = o.options.distance || (ref == 'top' ? el.outerHeight({margin:true}) / 3 : el.outerWidth({margin:true}) / 3);

		if (mode == 'show') el.css('opacity', 0).css(ref, motion == 'pos' ? -distance : distance); // Shift

		if (mode == 'hide') distance = distance / (times * 2);

		if (mode != 'hide') times--;

		// Animate

		if (mode == 'show') { // Show Bounce

			var animation = {opacity: 1};

			animation[ref] = (motion == 'pos' ? '+=' : '-=') + distance;

			el.animate(animation, speed / 2, o.options.easing);

			distance = distance / 2;

			times--;

		};

		for (var i = 0; i < times; i++) { // Bounces

			var animation1 = {}, animation2 = {};

			animation1[ref] = (motion == 'pos' ? '-=' : '+=') + distance;

			animation2[ref] = (motion == 'pos' ? '+=' : '-=') + distance;

			el.animate(animation1, speed / 2, o.options.easing).animate(animation2, speed / 2, o.options.easing);

			distance = (mode == 'hide') ? distance * 2 : distance / 2;

		};

		if (mode == 'hide') { // Last Bounce

			var animation = {opacity: 0};

			animation[ref] = (motion == 'pos' ? '-=' : '+=')  + distance;

			el.animate(animation, speed / 2, o.options.easing, function(){

				el.hide(); // Hide

				$.effects.restore(el, props); $.effects.removeWrapper(el); // Restore

				if(o.callback) o.callback.apply(this, arguments); // Callback

			});

		} else {

			var animation1 = {}, animation2 = {};

			animation1[ref] = (motion == 'pos' ? '-=' : '+=') + distance;

			animation2[ref] = (motion == 'pos' ? '+=' : '-=') + distance;

			el.animate(animation1, speed / 2, o.options.easing).animate(animation2, speed / 2, o.options.easing, function(){

				$.effects.restore(el, props); $.effects.removeWrapper(el); // Restore

				if(o.callback) o.callback.apply(this, arguments); // Callback

			});

		};

		el.queue('fx', function() { el.dequeue(); });

		el.dequeue();

	});

};

})(jQuery);