how can I create click-down triangles?

I am trying to google for how to create click-down triangles with
either CSS or some other method but not having much luck. It's
probably because my choice of words to describe this is incorrect.
Anyway, what I'm looking for is similar to the click-down triangles in
an OSX Finder window in list mode. Thanks for any help or URL to what
I'm searching for.

In article
<d3ab8975-4c11-4e41-8c53-a841a0be1...@d10g2000pra.googlegroups.com>,
>
*luxor127...@gmail.com wrote:>
The very simplest thing you can do is make a triangle image in the
closed position and have refer to it in your doc in the usual img
construction way. Make it a link too. When the user clicks it, a new
page with other information comes up but this time with the image of a
down triangle in the same place.
>
Do you need help in understanding or implementing this?
>
--
dorayme

On Oct 20, 2:36*pm, dorayme <doraymeRidT...@optusnet.com.auwrote:>
Thanks for your reply.

I know this can be done the way that I
described it because I've used a Javascript to do it before but it was
kind of crude and I'm looking for something that will do multiple
triangles. This can be seen on e.g. the google gadget for CNN.com.
However, their source code is impossible to read (and I really mean
impossible). :)

described it because I've used a Javascript to do it before but it was
kind of crude and I'm looking for something that will do multiple
triangles.

>
It's something easy enough to do via JQuery, if you're not averse to JS.
>
Sample code - untested, but should work fine.
>
triangle1.gif = right-pointing triangle image
triangle2.gif = down-pointing triangle image
---------
<script src="...pathTo.../jquery.js"></script>
<script>
$(document).ready(function(){
* * * * $(".toClick").click(function () {
* * * * * * var wasClicked = $(this);
* * * * *if($(wasClicked).attr("src") == 'triangle1.gif') {
* * * * * * *$(wasClicked).attr("src","triangle2.gif");
* * * * *} else {
* * * * * * *$(wasClicked).attr("src","triangle1.gif");
* * * * *}
* * * * *$(this).siblings(".revealMenu").toggle();
* * * * });});
>
</script>
>
<div class="container">
* * *<img src="triangle1.gif" class="toClick">
* * *<div class="revealMenu" style="display: none;">
* * * * *Menu 1 to reveal...
* * *</div>
</div>
<div class="container">
* * *<img src="triangle1.gif" class="toClick">
* * *<div class="revealMenu" style="display: none;">
* * * * *Menu 2 to reveal...
* * *</div>
</div>
<div class="container">
* * *<img src="triangle1.gif" class="toClick">
* * *<div class="revealMenu" style="display: none;">
* * * * *Menu 3 to reveal...
* * *</div>
</div>