Hi Alex and all, "Old" Doug has it right. a sliding glass door usually opening onto a patio or deck. Must be common in the US under another name. BTW I still have your version of the "Witches Potion" on the wall in my computer room. :-) Tony Flynn Grandad. Retired at the beach. Bay of Plenty. New Zealand ----- Original Message ----- From: "Alex Silbajoris" <asilbajo@hotmail.com> > >put them in front of the ranchslider. > > Right, now if you would please explain to us northern sods what a > ranchslider is... >