Creating an expandable menu

Hi all,

I’m currently trying to make my menu expandable using Javascript, but i can’t really figure out how to. I’m currently using the wp_list_pages function with a depth=0, witch results in the following html:

<ul>
	<li><a href="#">Normal item</a></li>
	<li><a href="#">Item with sub</a>
		<ul>
			<li><a href="#">Sub item</a></li>
		</ul>
	</li>
</ul>

I know all the HTML/CSS but was wondering if there’s any javascript to use for this?

Thanks in advance, kind regards,

Robin