var ceny = [[0,33.5],[-1,34.2],[-2,34.9],[-3,36.7]];

var litry = [[0,17.92],[-1,35.38],[-2,13.18],[-3,46.33]];

var tdatumy = {0:['28.04.2013'],1:['20.04.2013'],2:['27.03.2013'],3:['20.03.2013']};