INSIDE THE HEAD
......................................................................
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function()
{
$("#img').toggle(function() {
$('#div').show('slow');
$('#img').attr('src', 'root/images/minus.gif');
}, function() {
$('#div').hide('fast');
$('#img').attr('src', 'root/images/plus.gif');
});
});