Heaja-- From being on the other side many years DON"T pour his bottle out. that will only make him angry and he will get another bottle a soon as he can! It must be HIS decision if he is to quit. I'm sorry but thats the way it is. Be as encouraging as you can without being condemning or gripy.
He may quit drinking for a short time because of you, but in the long run it has to be his choice. I hope he will make the right one!!
Keep coming back and keep posting!