content: -- Take screen shot
  --   Save to desktop
  --   File name use current date and time
  set desktopPath to POSIX path of (path to desktop as string)
  set currentDate to current date
  set shellCommandToTakeScreenShot to "/usr/sbin/screencapture \"" & desktopPath & "Screen Shot " & currentDate & ".png\""
  do shell script shellCommandToTakeScreenShot
  