The win maintains Glasgow's challenge for a home play-off match but Mark says the Warriors can win a PRO12 semi-final wherever it's played.
Mark returned to Glasgow last November after leaving for a spell with French side Clermont Auvergne, and although he says he'd like a home tie he's confident the Warriors can progress wherever they play.
"The way we're playing just now we'd fancy beating anyone anyway," he told the Herald.
"Being at home would make a difference, especially with the kind of support we had on Friday, but we're confident in our own abilities. If we have to go away, which hopefully we won't, I'm sure we could still do the business."
The fomer Cumnock and Ayr player has impressed everone around Scotstoun since his return from France, originally on loan.
He has since signed a one-year deal with the Warriors, but says he doesn't regret his move to France despite suffering a serious knee injury.
"It was a good experience if nothing else," he said. "I've matured as a person as well as a player and that can only be good for my rugby. I found it hard after I hurt my knee, hard to get back to playing at the level I was hoping for."