Tips weren't hiding due to scope issue.
Tips weren't hiding due to scope issue.

git-svn-id: 030f8969b34ee98b29e336c5c67b22d8c0fb182d@17 fe98914c-ca2c-11dd-a2c4-6dc3ad32ce87

OpenCN/cnx,OpenCN/cnx,OpenCN/cnx