FUNCTION SATTPUSH()

  Short:
  ------
  SATTPUSH() Pushes the current SuperLib color vars

  Returns:
  --------
  Nil

  Syntax:
  -------
  SATTPUSH()

  Description:
  ------------
  This pushes the current system color and interface
  variables described in SLS_*() onto a stack, for later retrieval
  with SATTPOP().

  Examples:
  ---------
   SATTPUSH()
   SATTGET("THE BLUE SET")
   //...some code
   SATTPOP()  // restore the prior color set

  Source:
  -------
  S_ATTRIB.PRG