var locations = [ ['Berlin', 52.52000660, 13.40495400, 'Berlin'],['Frankfurt', 50.11092210, 8.68212670, 'Frankfurt'],['Hamburg', 53.55108460, 9.99368190, 'Hamburg'],['Hannover', 52.37589160, 9.73201040, 'Hannover'],['Köln', 50.93753100, 6.96027860, 'Köln'],['Stuttgart', 48.77584590, 9.18293210, 'Stuttgart'],['Würzburg', 49.79130440, 9.95335480, 'Würzburg'],];