Selected menu links

<script type="text/javascript">
	function applySelectedTo(link) {
	var ul = document.getElementsByTagName("ul")[0]; // get the first ul tag on the page
	var allLinks = ul.getElementsByTagName("a"); // get all the links within that ul
	for (var i=0; i<allLinks.length; i++) { // iterate through all those links
	allLinks[i].className = ""; // and assign their class names to nothing
	}
	link.className = "selected"; // finally, assign class="selected" to our chosen link
	}
	</script>

Where the code in html is:

<ul>
	<li><a onclick="applySelectedTo(this);return false;" href="#" class="">xxxx </a></li>
	<li><a onclick="applySelectedTo(this);return false;" href="#" class="">yyyy </a></li>
	<li><a onclick="applySelectedTo(this);return false;" href="#" class="">zzzz </a></li>

</ul>