$wikiPreview, $wikiDiff, $editform, $textbox, $summary, $copyElements, $spinner, $errorBox;
isDiff = ( e.target.name === 'wpDiff' );
$wikiPreview, $wikiDiff, $editform, $textbox, $summary, $copyElements, $spinner, $errorBox;
isDiff = ( e.target.name === 'wpDiff' );