Can I swap out my hp laptop's video card?

I can play almost NO games with my current video card I'm using an Hp G56 laptop and I was wondering if I could swap my crap video card out for something nicer. If I can do this, is there a website that sells laptop video cards?|||No you can not upgrade a laptop video card. Oh yeah, HP laptops die from video card over heating. I would not play to many games on that thing if i were you. Google it if you don't believe me