ajax? A0B13C72-90B8-11E1-BEC1-55A10E5AF53B SlippyMap W2GI http://st1.slippymap.com/tiles, http://st2.slippymap.com/tiles, http://st3.slippymap.com/tiles, http://st4.slippymap.com/tiles {map: 'smap-01'} SlippyMap Navteq http://st1.slippymap.com/tiles, http://st2.slippymap.com/tiles, http://st3.slippymap.com/tiles, http://st4.slippymap.com/tiles {map: 'smap-02'} Google Normal {'projection': 'EPSG:900913', 'type': google.maps.MapTypeId.ROADMAP, 'maxZoomLevel':18 }