var locations = [ ['Frankfurt', 50.11092210, 8.68212670, 'Frankfurt'],['Hamburg', 53.55108460, 9.99368190, 'Hamburg'],['Hannover', 52.37589160, 9.73201040, 'Hannover'],['Kempen am Niederrhein', 51.36788440, 6.42521700, 'Kempen am Niederrhein'],['München', 48.13512530, 11.58198050, 'München'],['Oberhausen', 51.49633410, 6.86377650, 'Oberhausen'],['Stuttgart', 48.77584590, 9.18293210, 'Stuttgart'],['Würzburg', 49.79130440, 9.95335480, 'Würzburg'],];