function SetDiemDen(loai)
    {
        searchtour.loaitour.value = loai;
        objtn = document.getElementById("diemdentn")
        objnn = document.getElementById("diemdennn")
        if(loai =="TN")
        {
            objtn.style.display = "block";
            objnn.style.display="none";
            obj1 = document.getElementById("ttp_2");
            obj1.checked = "checked";
        }
        else
        {
            objtn.style.display = "none";
            objnn.style.display="block";
            obj1 = document.getElementById("ttp_1");
            obj1.checked = "checked";
        }
    }