Mine

<script type="text/javascript" language="JavaScript"><!--	function getRadioValue(form, field) {		var obj = form.elements[field];		var checked = 0;				for (i = 0; i < obj.length; i++) {			if (obj[i].checked == true) {				return obj[i].value;				checked++;			}		}				if (checked == 0) {			return 'ERROR: Unable to retrieve radio button value.';		}	}//--></script>