show/hide for old wp

git-svn-id: https://plugins.svn.wordpress.org/processingjs-code-directly/trunk@911047 b8457f37-d9ea-0310-8a92-e5e31aec5664
show/hide for old wp

git-svn-id: https://plugins.svn.wordpress.org/processingjs-code-directly/trunk@911048 b8457f37-d9ea-0310-8a92-e5e31aec5664