function check_poll(pollId, poll_err_msg) {
    var poolcontent = document.getElementById(pollId);
    if(!poolcontent) { return false; }
    var inputFields = poolcontent.getElementsByTagName('INPUT');
    objTotal = inputFields.length;
    for (i = 0; i < objTotal; i++) {
        if (inputFields[i].checked) {
            document.poll_form.submit();
			return true;
        }
    }
    alert(poll_err_msg);
    return false;
}