This is fairly common is older spayed doberman bitches. Try posting "urinary incontinence" in the search function for information.
You may have to look thru some posts, but you should find some help.
Here: http://www.dobermantalk.com/search.php?searchid=2124158
Yahoo search:
doberman urinary incontinence - Yahoo! Search Results
You may have to look thru some posts, but you should find some help.
Here: http://www.dobermantalk.com/search.php?searchid=2124158
Yahoo search:
doberman urinary incontinence - Yahoo! Search Results