XForms Actions are handling response to events.
The XForms message element defines a message to be displayed in the XForms user interface.
Look at this simplified example:
In the example above, the message "Input Your First Name" should be displayed as
a tool tip when the input field gets focus.
The event="DomFocusIn" defines the event to trigger the message.
The level="ephemeral" defines the message to be displayed as a tool tip.
Other values for the level attribute are modal and modeless, defining different types of message
The XForms setvalue element defines a value to be set in response to an event.
In the example above, the value 50 will be stored in the "size" input field, when the
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