The message element is used within a validation to represent the message to be displayed to the user if the validation fails. Each message element has an id, which is used to reference a text property in the appropriate locale-specific properties file. For simplicity, script writers can add the text to use for the default locale directly into the script definition by adding a CDATA section as a child of the message element. The IEG Engine will remove this text from the script for you when you import the script, and store it in the appropriate properties file instead, using the id of the message element as the key.