fixed minor bug

git-svn-id: https://plugins.svn.wordpress.org/starbox/trunk@875250 b8457f37-d9ea-0310-8a92-e5e31aec5664
added some specifications

git-svn-id: https://plugins.svn.wordpress.org/starbox/trunk@875251 b8457f37-d9ea-0310-8a92-e5e31aec5664