[jQuery] fadeOut() and relatively positioned images?

[agent2026]

Trying to fade out a div, but the fade effect is not being applied
(div just disappears):

<div id="content">

<div id="flags" style="position:relative">
<img src="flagUS.gif" style="width:55px; height:51px;
position:relative; top:160px; left:-150px; z-index:10" />
<img src="flagUK.gif" style="width:58px; height:51px;
position:relative; top:160px; left:-130px; z-index:20" />
</div>

</div>


$('#flags').fadeOut('slow');


Any ideas?

Adam