DialogType

The following dialog types are defined in defines.lua


 * mtWarning (0): Display a dialog with a Warning icon(red !) and play the Warning sound
 * mtError (1): Display a dialog with an Error icon(red X) and play the Error sound
 * mtInformation (2): Displays a dialog with the Information(Blue !) icon
 * mtConfirmation (3): Displays a dialog with the Confirmation (?) icon