Toggle table header output on/off

Hi all,

I know isql has the -b parameter that suppresses table header output, but is there any way to turn it back on?  I'm running a stored procedure that outputs some data, and I'd like the headings to be in effect for that display, but to be off all the rest of the time.

Is there a SET command that can control table headers during an isql session?

Thanks and regards,

Dan