name the main container for the possibility to access it through java
script laterwards
for preventing form hitting an android bug, we have to make shure that
the map isnt rendered during the app startup, because otherwise there
will be no leaflet popups displayed. for now, we reach this target for
solve other higher priorized features by making it through an tab.panel
(carefull: animation type fade doenst work, probably the map is rendered
in background to early)
adding some eventlisteners