Small businesses in western Nevada County were besieged by an international conglomerate of computer hackers in a bizarre crime that replaced the front page of many area websites with a new page that played a Palestinian protest song. Heidi Greenberg is the owner of Lawyers in Transition, a locally owned business that has a national presence and helps lawyers unhappy with their present career explore options. When Greenberg typed in the address to her website — www.lawyersintransistion.com — she found that her front page no longer came up. Instead, an image of a Middle Eastern Landscape appeared accompanied by a …