Kôd:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>testing</title>
<script type="application/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="application/javascript">
$('#sidebar a').click(function() {
$('#sidebar a').removeClass('current');
$(this).addClass('current');
});
</script>
<style type="text/css">
.current {
color:#F00;
}</style>
</head>
<body>
<div id="sidebar">
<ul>
<li><a href="#anchor-1">anchor one</a></li>
<li><a href="#anchor-2">anchor second</a></li>
<li><a href="#anchor-3">anchor third</a></li>
</ul>
</div>
</body>
</html>
ovako nesto?