How do you combine folders in a yahool email account?

I have a bunch of folders that i made in my email account, and now i want to combine and delete some of them. Is it possible to do that? If so, how?

How do you combine folders in a yahool email account?
yes it's possible... try using yahoo mail beta.. it's more easy, just click and drag.. ^_^
Reply:just move all the messages in one folder to the other folder and then delete the empty one