How to add “multi advertising images”

Hi.

Is it possible to add 4 or 5 advertising images to same place?they should interchange on refresh.

For example.If you go to refresh,u will see another adv pic on same spot.

I use this code for adding adv pics on my page.

<!-- Advertisement // -->
<div class="advert-arch-top">
	<!-- Edit Below -->
	<a href="www.google.com"><img src="http://yoururl/wordpress/wp-content/uploads/2010/06/image.jpg" alt="sample" /></a>
	<!-- END Edit -->
</div>
<!-- // Advertisement -->

ty in advance