DELAY_SCR

  .  Summary

  delay_scr(int <duration>);

  .  Description

  The delay_scr function pauses only the execution of the current
  script file for the indicated duration. During that time, characters
  coming in from the serial port are printed on the terminal screen,
  while user keystrokes are also processed.

  .  Return Value

  The <duration> argument is returned.