Viewing/burial - sad with a few attempted parts to lighten the mood.
Afterwards - most (the two) funerals I have been to have been a "party" afterwards. Nothing major, just the family and friends, with stuff like sandwiches, desserts, and alcohol. Lots, lots, and lots of alcohol. Granted, I was never (and still am not) old enough to drink, but I don't anticipate anyone dying within the next year. And if someone does, it isn't gonna stop me. But, I digress, the "party" afterwards isn't because the person was an asshole, it's (in my family, at least) it's a "going away" sort of thing (can't figure out how to word it better). Not to celebrate that they're dead, but, in a way, to celebrate their life. The fact that they DID live and have been with everyone. A way to lighten the mood, to show that even though they're gone, life carries on.
When I die, I want a funeral like that. Everyone is going to be sad when they're at a funeral. Hell, when my... err... when my grandpa's friend died, who was the father of my mom's aunt's... sister's husband... I think... (fuck, I only met the guy a few times), I went to the funeral. I almost cried because it's so fucking sad. Afterwards, though, there was the celebration. There was food, people were drinking, that's what I want. Nobody is gonna be happy at it. Any happiness is forced happiness, but at least they're trying, which is what I would want. I would want those who were closest to me to still try to be happy even though I wasn't there anymore.
Well, I think funerals are fine, but I want someone to do something cool with my body, like roll it down a hill... or mountain.