The Jets took another step toward their ultimate destination of New Jersey, unveiling preliminary designs Friday for the team's new training facility and corporate headquarters. The Jets have played at Giants Stadium since 1984 but have maintained offices in New York and a practice facility in Hempstead, a Long Island suburb not far from their old home of Shea Stadium. On March 31, the team ended a six-month search of over 40 potential sites by deciding on Florham Park, which is 17 miles west of Giants Stadium.