This method can be used for Dialog deployment only. xpertrule.flashMessage shows a message at the bottom of the computer screen for either a specified number of seconds or until a subsequent flashMessage is called.
Show a message for a specified number of Seconds:
xpertrule.flashMessage(message, duration);
Show a message (permanently):
xpertrule.flashMessage(message);
Hide any currently showing message...
xpertrule.flashMessage();
You can style the message by modifying the .xrui-message-ovl css Class in your custom css