https://www.hotel-helvetia.com/(cms)/module/static/default/content/libs/js/jquery.sort-0.1/jquery.sort.js

1jQuery.fn.sortElements = (function(){
2 
3    var sort = [].sort;
4 
5    return function(comparator, getSortable) {
6 
7        getSortable = getSortable || function(){return this;};
8 
9        var placements = this.map(function(){
10 
11            var sortElement = getSortable.call(this),
12                parentNode = sortElement.parentNode,
13 
14                // Since the element itself will change position, we have
15                // to have some way of storing its original position in
16                // the DOM. The easiest way is to have a 'flag' node:
17                nextSibling = parentNode.insertBefore(
18                    document.createTextNode(''),
19                    sortElement.nextSibling
20                );
21 
22            return function() {
23 
24                if (parentNode === this) {
25                    throw new Error(
26                        "You can't sort elements if any one is a descendant of another."
27                    );
28                }
29 
30                // Insert before flag:
31                parentNode.insertBefore(this, nextSibling);
32                // Remove flag:
33                parentNode.removeChild(nextSibling);
34 
35            };
36 
37        });
38 
39        return sort.call(this, comparator).each(function(i){
40            placements[i].call(getSortable.call(this));
41        });
42 
43    };
44 
45})();