http://www.daf-tlt.ru/templates/daf_tmpl1/js/shim/bind.js

1// bind method
2if (Function.prototype.bind == null) {
3
4    Function.prototype.bind = (function (slice) {
5
6        // (C) WebReflection - Mit Style License
7        function bind(context) {
8
9            var self = this; // "trapped" function reference
10
11            // only if there is more than an argument
12            // we are interested into more complex operations
13            // this will speed up common bind creation
14            // avoiding useless slices over arguments
15            if (1 < arguments.length) {
16                // extra arguments to send by default
17                var $arguments = slice.call(arguments, 1);
18                return function () {
19                    return self.apply(
20                        context,
21                        // thanks @kangax for this suggestion
22                        arguments.length ?
23                            // concat arguments with those received
24                            $arguments.concat(slice.call(arguments)) :
25                            // send just arguments, no concat, no slice
26                            $arguments
27                    );
28                };
29            }
30            // optimized callback
31            return function () {
32                // speed up when function is called without arguments
33                return arguments.length ? self.apply(context, arguments) : self.call(context);
34            };
35        }
36
37        // the named function
38        return bind;
39
40    }(Array.prototype.slice));
41
42}