var ceny = [[0,29.3],[-1,29.3],[-2,28.9],[-3,28.9]];

var litry = [[0,41.45],[-1,40.96],[-2,47.52],[-3,20.76]];

var tdatumy = {0:['20.08.2017'],1:['13.08.2017'],2:['02.08.2017'],3:['31.07.2017']};