anchor.diff:          <div id="themebox">
               <s:form id="themeform" action="index" theme="simple">
                   <div>
  -                <s:select id="theme" name="theme" list="themes" emptyOption="true"/><br/>
  +                
  +                <s:select id="selected_theme" name="theme" list="themes" emptyOption="true" onchange="changeTheme(this.value);"/><br/>
                   <s:checkbox id="google" name="google"/><label for="google" style="padding: 3px;">Load jQuery from Google CDN</label><br/>
                   <s:checkbox id="ajaxhistory" name="ajaxhistory"/><label for="ajaxhistory" style="padding: 3px;">Use Ajaxhistory (BETA)</label><br/>
  -                <s:submit value="Change Theme" cssClass="buttonlink ui-state-default ui-corner-all"/>
  +
                   </div>
               </s:form>
           </div>
  
positive.code: 	<script type="text/javascript" src="js/showcase.js"></script>
  	<!-- Extend the Struts2 jQuery Plugin with an richtext editor -->
  	<script type="text/javascript" src="js/extendplugin.js"></script>
  </head>
  <body>
    <div class="page_margins">
  
negative.code: 	<link href="styles/patch_layout.css" rel="stylesheet" type="text/css" />
  	<![endif]-->
  
  <link rel="stylesheet" href="http://static.jquery.com/ui/css/demo-docs-theme/ui.theme.css" type="text/css" media="all" />
  
  
  	<!-- This files are needed for AJAX Validation of XHTML Forms -->
  	<script type="text/javascript" src="${pageContext.request.contextPath}/struts/utils.js"></script>
  	<script type="text/javascript" src="${pageContext.request.contextPath}/struts/xhtml/validation.js"></script>
  