https://iphae.rs.gov.br/matriz_common/versions/2.1.5/js/procergs/matriz.common.js?2.1.5.161.6+1

1$(function () {
2    matriz.common = {
3        "Event": function () {
4            this.data = {};
5
6            this.on = function (type, callback) {
7                if (!this.data[type]) {
8                    this.data[type] = [];
9                }
10                this.data[type].push(callback);
11                return this;
12            };
13
14            this.trigger = function (type, parameters) {
15                if (this.data[type]) {
16                    for (var i = 0, len = this.data[type].length; i < len; i++) {
17                        this.data[type][i].apply(this, parameters instanceof Array ? parameters:[parameters]);
18                    }
19                }
20                return this;
21            };
22        }
23    };
24    matriz.common.events = new matriz.common.Event();
25});