Get the radio button DOM objects of XPages Radio Group by Dojo

var chkRadioObj = dojo.query("input[name$='#{id:YOUR_RADIO_GROUP_ID}']");
for(var i=0; i < chkRadioObj.length; i++){
    if(chkRadioObj[i].checked){
        alert(chkRadioObj[i].value);
    }
}