function UnCheckAllRadio(obj, divID) {    
    if (divID == '') {

        RdoGPID = obj.parentNode.getAttribute('RadioGroup');
        divID = 'RadioMgr_' + RdoGPID;
        //  alert(divID);
    }
    var dlDiv = document.getElementById(divID);
    var allChk = dlDiv.getElementsByTagName("input");
    for(var i = 0 ; i < allChk.length ; i++)
    {
        if(allChk[i].type == "radio")
        {
            if (obj != allChk[i]) {
                allChk[i].checked = false;
            }
            else {
                allChk[i].checked = true;
            }
        }
    }
}

function IsARadioChecked(divID)
{    
    var count=0;
    var dlDiv = document.getElementById(divID);    
    var allChk = dlDiv.getElementsByTagName("input");
    for(var i = 0 ; i < allChk.length ; i++)
    {
        if(allChk[i].type == "radio")
        {
            count++;
           if (allChk[i].checked == true)
           {
                return true;
           }
        }
    }
    return count== 0 ? true: false;
}