FUNCTION RAT_LASTEV()          *new*

  Short:
  ------
  RAT_LASTEV() Returns the last event recorded by RAT_EVENT()

  Returns:
  --------
  <nEvent> => last recorded RAT_EVENT() event

  Syntax:
  -------
  RAT_LASTEV()

  Description:
  ------------
  Every once in a while, some other function will be responsible
  for doing the RAT_EVENT() call, but your function still wants
  to know what the last event was. This function can be used to
  retrieve that value.

  Examples:
  ---------
   RAT_LASTEV()

  Source:
  -------
  S_MOOSE.PRG