Slidetoggle multiple divs?

Slidetoggle multiple divs?

I'm having no problem with a single slideToggle div, but I need to have two or three on a single page, with each opening in the same place. So I basically need each click to check whether one of the other slide divs are open, and close (or hide) it, then slide the clicked on open.

Here is the code I have for the single div:
$(document).ready(function() {
   $('#showThis').live('click', function() {
      $("div#showThisPanel").slideToggle("slow");
   });
});


My html I want to use for multiple panels:
<div id="showThisPanel">
<div id="Panel1">
            <ul>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            </ul>
</div>
<div id="Panel2">
            <ul>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            </ul>
</div>
<div id="Panel3">
            <ul>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            <li><a href="#">text</a></li>
            </ul>
</div>
</div>       


Any ideas on how to accomplish this?