var ceny = [[0,28.9],[-1,29.6],[-2,28.7],[-3,29.2]];

var litry = [[0,41.13],[-1,40.54],[-2,34.85],[-3,20.55]];

var tdatumy = {0:['12.01.2018'],1:['07.11.2017'],2:['30.08.2017'],3:['14.08.2017']};