//---------------------------
function GetRadioValue(oRadio) 
{
    for(var i = 0; i < oRadio.length; i++) 
    {
        if (oRadio[i].checked) 
        {
            return oRadio[i].value;
        }
    }
    return "";
}

//---------------------------
function SetRadioValue(oRadio, sValue) 
{
    for(var i = 0; i < oRadio.length; i++) 
    {
        oRadio[i].checked = false;
        if (oRadio[i].value == sValue) 
        {
            oRadio[i].checked = true;
        }
    }
}