https://www.obeclucnica.sk/bundles/headerfooter/js/slideshow2/js/slideshow.flash.js?v=v6.5.0

1/**
2Script: Slideshow.Flash.js
3	Slideshow.Flash - Flash extension for Slideshow.
4
5License:
6	MIT-style license.
7
8Copyright:
9	Copyright (c) 2008 [Aeron Glemann](http://www.electricprism.com/aeron/).
10
11Dependencies:
12	Slideshow.
13*/
14
15(function () {
16    Slideshow.Flash = new Class({
17        Extends: Slideshow,
18
19        options: {
20            color: ['#FFF'],
21        },
22
23        /**
24	Constructor: initialize
25		Creates an instance of the Slideshow class.
26
27	Arguments:
28		element - (element) The wrapper element.
29		data - (array or object) The images and optional thumbnails, captions and links for the show.
30		options - (object) The options below.
31
32	Syntax:
33		var myShow = new Slideshow.Flash(element, data, options);
34*/
35
36        initialize: function (el, data, options) {
37            options = options || {};
38            options.overlap = true;
39            if (options.color) options.color = Array.from(options.color);
40            this.parent(el, data, options);
41        },
42
43        /**
44	Private method: show
45		Does the slideshow effect.
46*/
47
48        _show: function (fast) {
49            if (!this.image.retrieve('tween'))
50                $$(this.a, this.b).set('tween', {
51                    duration: this.options.duration,
52                    link: 'cancel',
53                    onStart: this._start.bind(this),
54                    onComplete: this._complete.bind(this),
55                    property: 'opacity',
56                });
57            if (fast) this.image.get('tween').cancel().set(1);
58            else {
59                this.el
60                    .retrieve('images')
61                    .setStyle('background', this.options.color[this.slide % this.options.color.length]);
62                var img = this.counter % 2 ? this.a : this.b;
63                img.get('tween').cancel().set(0);
64                this.image.get('tween').set(0).start(1);
65            }
66        },
67    });
68})();