What about a play pen? Or, here is another idea.Take his crate (Does he have a crate?) and set it up with the door open. Surronding the door, use baby gates, boxes, crates, or whatever, and close in a small area that he can play in, and go in and out of his crate when ever he wants. In the play area( o.k, I know this is discusting) , put sheets of news papers and when you take him out to the bath room, take a cotton ball with you, and a plastic bag. When he urinates, soak the cottan ball in it, and put it in the plastic bag. Dab the cotton ball on the newspaper, and he'll be attracted to the smell, and he'll go there.