如何使用struts2-core-2.1.6将主题作为ajax应用到jsp表单。jar使用了struts 2应用程序吗?

I am trying to implement ajax to my struts2 application using the DWR . while configuring DWR i need to make the theme of the form as ajax . I am using struts2-core2.1.6.jar in which it did not have the ajax theme at all , the template folder has the css_xhtml,simple,xhtml and archive themesI am trying to implement ajax to my struts2 app