I don't see the jquery on the site you're pointing at, so hopefully this is what you're wanting. Had to work on this one for just a minute

Didn't see it readily out there anywhere...
EDIT: OK, I see the summaries now, and yeah, this should do you.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function(){
$("span").click(function () {
$("p").each(function() {
vis = $(this).css("visibility");
if(vis == "visible") {
$(this).fadeOut('slow',function() {
$(this).css("visibility","hidden");
});
} else {
$(this).css("visibility","visible");
$(this).fadeIn('slow');
}
});
});
});
</script>
<style>
p { width:400px; }
</style>
</head>
<body>
<span>Toggle</span>
<p>
This is the paragraph to end all paragraphs. You
should feel <em>lucky</em> to have seen such a paragraph in
your life. Congratulations!
</p>
</body>
</html>
-
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
- "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <script src="http://code.jquery.com/jquery-latest.js"></script>
-
- <script>
- $(document).ready(function(){
-
- $("span").click(function () {
- $("p").each(function() {
- vis = $(this).css("visibility");
- if(vis == "visible") {
- $(this).fadeOut('slow',function() {
- $(this).css("visibility","hidden");
- });
- } else {
- $(this).css("visibility","visible");
- $(this).fadeIn('slow');
- }
- });
- });
- });
- </script>
- <style>
- p { width:400px; }
- </style>
- </head>
- <body>
- <span>Toggle</span>
- <p>
- This is the paragraph to end all paragraphs. You
- should feel <em>lucky</em> to have seen such a paragraph in
- your life. Congratulations!
- </p>
- </body>
- </html>
-
Setting the visibility on and off isn't particularly required by the jquery, but it provides a flag to know the current state of the paragraph. Just know that this will control all paragraphs in your page - if you want to get specific, give your paragraph an id or group of paragraphs a particular empty css class and use these mechanisms in your jquery selector instead of p.
I'd love to change the world, but they won't give me the source code.