On Sun, Oct 14, 2012 at 10:55 AM, Boudjelda Mohamed Said <bmscomp(a)gmail.com> wrote: Note that whatever you put in the content of a wiki page the result is inserted in the BODY tag of the final HTML page so generating the HEAD tag in the content of a wiki page is wrong. Your best option is to load the JavaScript and CSS dynamically following this steps: (1) Define a JavaScript/CSS extension. See http://platform.xwiki.org/xwiki/bin/view/DevGuide/SkinExtensionsTutorial . (2) For CSS you simply use @import. For JavaScript you listen to page load and then inject a SCRIPT tags in the existing HEAD of the HTML page. document.observe('xwiki:dom:loaded', function() { // Inject the script tag here. }) (3) Whenever you need the JavaScript/CSS you use {{velocity}} #set ($discard = $xwiki.ssx.use('Space.PageWithSSX')) #set ($discard = $xwiki.jsx.use('Space.PageWithJSX')) {{/velocity}} You may want to take a look at http://extensions.xwiki.org/xwiki/bin/view/Extension/jQuery+Helpers . Also note that we're using Prototype.js in XWiki everywhere so you need to handle the conflicts with jQuery. Hope this helps, Marius