charles said:.....I'm guessing you mean a single image as an element of a page rather than a whole image as a page...?
<img src="/images/logo.gif" id="logo" alt="logo" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$('document').ready(function()
{
$('#logo').click(function(){ document.location.href = "/"; });
});
</script>