JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test">
<select id="select">
	<option value="1" selected="selected">one</option>
	<option value="2">two</option>
</select>
</div>

JavaScript

$('test').addEvent('change:relay(select)', function(){
	alert('got');
});

$('select').value=5;
$('select').fireEvent('change');