<?xml version="1.0"?> <!-- This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <!DOCTYPE window> <window orient="vertical" style="border: 2px solid green" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script> function start() { var row = document.getElementById("row"); var text = document.createElement("text"); text.setAttribute("value", "foo"); row.appendChild(text); } </script> <hbox> <grid style="border: 2px solid red;" id="grid"> <columns> </columns> <rows> <row id="row"> <button label="value"/> </row> </rows> </grid> <spacer flex="1" style="background-color: white"/> </hbox> <button label="insert" oncommand="start()"/> </window>