JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<img src = "http://dummyimage.com/120x90/f00/fff.png&text=click+me!" />

JavaScript

$('img').live("custom_event", function(evtObj, data, callback) {
    alert(data);
    callback();
});

$('img').click(function() {
    $('img').trigger("custom_event", ['testdata', function(d) {
        alert("this is my anonymous function passed as event data");}]);
});