Give Hialeah's political leaders credit where it's due: They've put together an impressive electronic library system. Anchored by the John F. Kennedy Library at 190 W. 49th St., the e-libraries also have three satellite locations in the northern (7400 W. Tenth Ave.), eastern (501 E. Fourth Ave.), and western (7400 W. 24th Ave.) quadrants of the city. Each e-library is equipped with a dozen multimedia desktop computers; the JFK library offers computer tutoring classes in English and Spanish that teach the basics of using a mouse, creating an e-mail account, using word processing programs, and surfing the Internet. Now if we could only convince Mayor Julio Robaina to do away with the city's individual system of street numbers....