Object access fire event
<p>I have an object that I created previously.</p>

<pre><code>obj = new Object();
</code></pre>

<p>I would like to fire a function each time this one of the object child is changed.</p>

<p>ex:</p>

<pre><code>function changed()
{
  alert('Object changed';)
}

obj.test = 'blabla'; //fire changed().
</code></pre>

<p>Is this possible? Thank you</p>
