[jQuery] Page Reload On Link Click

[jQuery] Page Reload On Link Click


I've been following several tutorials, trying to learn JQuery and I've
been having some difficulty with what should be a trivial task. When
I click a link to activate something like a <div> toggleing in and out
of site, I get jumped to the top of the page. Also, my functions
don't seem to be working. Can somebody help me with this?
<a href="#" class="comment_toggle">[show comments]</a>
<script type="text/javascript">
$(document).ready(function(){
    $("a.comment_toggle").click(function(){$(div.comment").toggle();
return false;});
    });
</script>
<div class="comment">Here is the comment</div>
CSS
.comment {
    display: none;
    border: 1px black solid;
}