5x5-mode-hook
    
    5x5-mode-hook is a variable defined in `
5x5.el'.
Its value is 
nil
-   This variable may be risky if used as a file-local variable.
Documentation:
Hook run after entering 5x5 mode.
No problems result if this variable is not bound.
`add-hook' automatically binds it.  (This is true for all hook variables.)
You can customize this variable.