write a function onchange of some attribute
<p>i need to write a function onchange of some attribute, but when i wrote the following</p>

<pre><code>$("#handle_valueAA").attr("aria-valuenow").change(function(u)
{
...
})
</code></pre>

<p>it doesn't work.
what is the reason?</p>

<p>Thanks</p>
