<!DOCTYPE HTML><html><head> <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script> </head> <body> <textarea id="t" rows="4" style="-moz-appearance: none"></textarea> <script> var area = document.getElementById('t'); area.focus(); sendKey('RETURN'); // press Enter twice sendKey('RETURN'); sendKey('BACK_SPACE'); // press Backspace once </script> </body> </html>