fire .change with keyup and keydown
<p>I have the following which works as long as I use the mouse to select an option from the selectbox, or use keyboard arrow keys to select the option, but when using the keyboard, the change event does not fire until I press enter on the keyboard.</p>

<p>How would I detect a change using the keyboard arrow keys without having to press enter?</p>

<pre><code>$('#select_box').change(function() {
    some_function($(this).val());
});
</code></pre>
