<?xml version="1.0" encoding="ISO-8859-1"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <?xml-stylesheet href="app.css" type="text/css"?> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script type="application/x-javascript" src="./app.js"/> <vbox flex="1" id="main"> <button label="Click me !!!"/> <button label="Click me !!!" id="i_bar"/> </vbox> <vbox flex="1"> <button type="radio" group="grp" label="Click me !!!" id="i_foo"/> <button type="radio" group="grp" label="Click me !!!" class="c_foo"/> </vbox> </window>