/*!
 * jQuery UI Effects Bounce 1.8.21
 *
 * Copyright 2012, 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','bottom','left','right'];

    // 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);
