Here is sample of their usage <ui:composition xmlns="http://www.w3.org/1999/xhtml" | xmlns:ui="http://java.sun.com/jsf/facelets" | xmlns:e="http://org.el.func/func"> | <div>#{e:evalEl('true')}</div> | <div>#{e:isBlank(' ')}</div> | <div>#{e:getBeanProperty(identity, 'username')}</div> | <div>#{e:getEnv('PATH')}</div> | <div>#{e:toString(identity)}</div> | <div>#{e:trunc('hhhhhhhh', 2)}</div> | </ui:composition> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4074266#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...