I want to sell my copy of diablo 3 but how?

[makoenergy]

I cant give someone my entire battle.net account because it has too many other stuff on there.
If I change the user name login to your email would that change my battle.net account email too or just the log in for diablo 3. Likewise if i change my diablo3 password(to what you want as well as security question) to whatever you want that wont have any effect on my accont.
Or is there some way to de register the account? how do most people sell there diablo 3 accounts.

[$hak]

you wont be able to without givign up BNET account. sorry.

[makoenergy]

so if diablo 2 is attached to this will I lose access to diablo 2 as well.
Why cant I just change the email login/ password to them and give them the security question.