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/*
 * jQuery UI Effects Bounce 1.8.5
 *
 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Effects/Bounce
 *
 * Depends:
 *      jquery.effects.core.js
 */
(function( $, undefined ) {

$.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);