Dog Whisperer method.
Wait til the dog is calm before you look at him, talk to him, or pet him. Use your hand as a dogs mouth and nip at his shoulder as the top dog would do if a lower dog invaded his space without being invited in. Make a noise, any noise you choose, when you do this, so eventually you will be able to control him when he is out of reach.
Try ignoring first and use the bite only if he doesn't back off.
good luck
Let us know if you use this method and if it works.
Link to his site.
http://www.dogchannel.com/dog/expert...aspx?WT.srch=1