Module Os_msg
module Os_msg : sig..end
This module provides functions to display messages (client-side or server-side).
val msg :
?level:[ `Err | `Msg ] ->
?duration:float -> ?onload:bool -> string -> unit
Call this function either from client or server side to display an error message in the page.
The message is displayed in a special box (a "div" with id "os_msg" created automatically in the body of the page).
It is displayed during a short amount of time then disappears. You may change the duration in seconds with the parameter duration (default can be set using function Os_msg.set_default_duration).
The two levels correspond to different classes that you can personalize by modifying the CSS class "os_err" (added for error messages to the box with ID "os_msg").
If ?onload is true, the message is displayed after the next page is displayed (default false). When called on server side, this is always the case.