A maritime museum that has been up-and-running in Jacksonville for 30 years may be forced to close after facing dwindling funding. The museum for the Jacksonville Maritime Heritage Society, located at the Landing, has little funding left to pay the $45,000 in annual expenses for overhead and its one paid employee - Museum Director Paul Ghiotto. Although the rest of the museum's employees are volunteers, Ghiotto told the Florida Times-Union that the museum could only say for sure that it will…