dialog is not shows

dialog is not shows


Hi!
I try to use a dialog widget but with no success =(
Using this html I see only content of the div but not the dialog...
<!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(){
$("#example").dialog();
});
</script>
</head>
<body>
<link rel="stylesheet" href="http://dev.jquery.com/view/tags/ui/
latest/themes/flora/flora.all.css" type="text/css" media="screen"
title="Flora (Default)">
<script type="text/javascript" src="http://dev.jquery.com/view/tags/ui/
latest/ui/ui.core.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/tags/ui/
latest/ui/ui.dialog.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/tags/ui/
latest/ui/ui.resizable.js"></script>
<script type="text/javascript" src="http://dev.jquery.com/view/tags/ui/
latest/ui/ui.draggable.js"></script>
<div id="example" class="flora" title="This is my title">I'm in a
dialog!</div>
</body>
</html>