// JavaScript Document
var controlValues = new Array(52);

function clearRadio(control) {
	var controlName = control.name;
	var controlNumber = parseInt(controlName.substr(3, 3));
	if (controlValues[controlNumber] == control.value) {
		control.checked = false;
		controlValues[controlNumber] = '';
	} else {
		controlValues[controlNumber] = control.value;
	};
}