masquitos@mail.ru,
var Data=[{"month":"jun","Name":"Aks","calls_in":"233","calls_out":"455","id":"1"},{"month":"feb","Name":"Aks","calls_in":"231","calls_out":"100","id":"2"},{"month":"mar","Name":"","calls_in":"434","calls_out":"300","id":"3"}]
var Property="calls_in";
alert(Data[1][Property]);