function get_radio_value(field)
{
	var i=0;
	var rad_val = "";
	for (var i=0; i < field["length"]; i++){
		if (field[i].checked){
			rad_val = field[i].value;
			return rad_val;
		}
	}
}
function setRadioValue(field,value)
{
	var i=0;
	for (var i=0; i < field["length"]; i++){
		if (field[i].value === value.toString()){
			field[i].checked = true;
		}else{
			//field[i].checked = false;
		}
	}
}