She needs some help  

You should really have her watch the dog whisperer it is the solution to all of my questions when it comes to my dog. He mainly says that if she doesn't show him that she is the extreme authority and stop the barking as soon as it happens, everytime it happens then he will keep doing it. I know it sounds silly but I give eddie timeouts in his kennel if he doesn't listen. Then I bring him out and let him go back to his routine, if he does it again I assert authority and if he doesn't listen then timeout. Dogs are huge on persistance and routine. I am not an expert but this is what I learned with animal shows and books. But the Dog whisperer is a god send it makes you feel like you are not the only one out there with these problems. Barking is huge on that show.

Get a shock collar. We have one and it did wonders for all three of our dogs. Shock collars have 10 different levels of shock and also a warning sound to use first before the shock. It took a few times before our dogs got the gist of what we expected out of them. It's very safe or they wouldn't be sold in stores. We had to get one for it was our last resort. Now we don't use it at all for they're all trained well.