https://sottoventolierna.it/wp-content/themes/spoon/js/jquery.neatshow.js?ver=1.2

1/*    neatShow.js 
2 *    version v1.2 (06/2013)
3 *    Copyright 2013 Steve Papadopoulos.
4 *    Released under the MIT license.
5 *    http://stevepapa.com/neatshowjs
6 *    Dependencies: jQuery v1.4+  
7 */
8
9(function( $ ) {
10    
11    jQuery.fn.neatShow = function (option) {
12        
13        var selection = this;
14        var minSpeed = 400;
15        var maxSpeed = 1800;
16        
17        if (typeof option === 'undefined')  option = {};
18        option.speed = option.speed || null;
19        option.mode = option.mode || null;
20        option.minSpeed = option.minSpeed || minSpeed;
21        option.maxSpeed = option.maxSpeed || maxSpeed;
22        
23        if (option.mode == 'container')  selection = this.find('img:not(:visible)');
24        
25        var neat = function(){
26            
27            option.speed = 'random' ?
28                this.speed = Math.floor(Math.random()*(option.maxSpeed-option.minSpeed+1)+option.minSpeed) :
29                this.speed = option.speed ;
30            
31            $(this).fadeIn(this.speed);
32        };
33        
34        return selection.each(function () {
35            if (this.complete || this.readyState == 'complete') {
36                neat.call(this);
37            } else {
38                $(this).on('load',neat);
39            }
40        });
41    };
42    
43}( jQuery ));