var locations = [ ['Frankfurt', 50.11092210, 8.68212670, 'Frankfurt'],['Kassel', 51.31271140, 9.47974610, 'Kassel'],['Kempen', 51.36499420, 6.42053090, 'Kempen'],['Köln', 50.93753100, 6.96027860, 'Köln'],['München', 48.13512530, 11.58198050, 'München'],['Münster', 51.96066490, 7.62613470, 'Münster'],];