Tabs in Example section on main page are not working

1. Open http://thrift.apache.org/
2. Navigate to Example section. "Thrift Definition file" tab is active
3. Click on "C++ server" tab. Code section is not updated.
4. Click on "Python Client" tab. Code section will be updated. In the code you will also see HTML tags and part that should be in "C++ server" tab.

Expected behavior:
On step 3 content of "C++ server" tab should be displayed
On step 4 content of ONLY "Python Client" tab should be displayed

Suggestions:
Probably the issue is related to HTML code of http://thrift.apache.org/ where '<'/'>' are replaced with '<'/'>'.