Appy different themes to jQuery-dialog?
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I have a page with the following jQuery scripts/theme included. The default theme I want is 'ui-lightness' for all applicable elements, but I would like the jQuery dialog boxes to be styled according to the 'cupertino' theme. How would I implement this requirement in my page?

    <!doctype html>
    <html>
     <head>
    <meta charset="utf-8">
    <title>jQuery UI Example Page</title>
      <link type="text/css" href="css/cupertino/jquery-ui-1.8.21.custom.css" rel="stylesheet" />
      <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script>
      <script type="text/javascript" src="js/jquery-ui-1.8.21.custom.min.js"></script>
      <script type="text/javascript" src="http://jzaefferer.github.com/jquery-validation/jquery.validate.js"></script>
