Hi and welcome to SR. You have come to the right place. Your husband has been drinking a long time now...have you ever been to an Alanon meeting before? If not, I would say it's time to try now.
There is alot of information for you listed in the stickys at the top of this forum page. A good book to read is called Codependent No More, by Melodie Beattie.
In Alanon I learned that I cannot control what the other person does, but I can learn about the disease and find help for myself in Alanon and here on SR too. The alcoholic must have the desire to quit for himself- I can't persuade or help him/her to do that.
You don't have to face this all by yourself, as there are many others here who are in the same situation.
I hope you will keep coming here to this forum, I'm glad you found us. There is hope!
here is a link to help you find a meeting near you:
http://alcoholism.about.com/cs/meetings/a/blananon.htm