<html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait"> <head> <bindings xmlns="http://www.mozilla.org/xbl"> <binding id="foo"> <content> <children xmlns="http://www.mozilla.org/xbl" /> </content> </binding> </bindings> <script> function boom() { document.getElementById("div").style.MozBinding = "url('#foo')"; var opt1 = document.getElementById("opt1"); opt1.removeChild(opt1.firstChild); document.getElementById("textarea").value += " "; document.documentElement.removeAttribute("class") } </script> </head> <body onload="setTimeout(boom, 30);"> <div id="div"> <textarea rows="3" cols="5" id="textarea"></textarea> </div> <select> <option id="opt1">opt1</option> </select> </body> </html>