Managing an FVTerm Child iFrame in Javascript

This call replaces the ability in the FVTermParent non-messaging environment to call the fvApi.fvWin.HideIcons function.

This will hide selected icons from the user.  

See the FVTerm Web.Config documentation for the HideTrayIcons key setting for the icon names and format used.  

 Example use: fvApi.HideIcons('histIcon, macIcon');