code: function () {
  			
  			// Delegate event listening because list of choices is dynamic
  			// so we can't listen on each <input type="radio" class='inputEx-RadioField-radio' />
  			
  			// Change event (IE does not fire "change" event, so listen to click instead)
  			Event.delegate(this.fieldContainer, YAHOO.env.ua.ie ? "click" : "change", function(e, matchedEl, container) {
  				this.onChange(e);
  			}, "input.inputEx-RadioField-radio", this, true);
  			
  			// Focus / Blur events
  			Event.delegate(this.fieldContainer, "focusin", function(e, matchedEl, container) {
  				this.onFocus(e);
  			}, "input.inputEx-RadioField-radio", this, true);
  			
  			Event.delegate(this.fieldContainer, "focusout", function(e, matchedEl, container) {
  				this.onBlur(e);
  			}, "input.inputEx-RadioField-radio", this, true);
  			
  			// AnyField events
  			if (this.allowAnyChoice) {
  				
  				this.anyField.updatedEvt.subscribe(function (e, params) {
  					
  					var value = params[0];
  					this.radioAny.value = value;
  					
  					this.setClassFromState();
  					
  					inputEx.RadioField.superclass.onChange.call(this,e);
  					
  				}, this, true);
  				
  				// Update radio field style after editing anyField content !
  				Event.addBlurListener(this.anyField.el, this.onBlur, this, true);
  			}
  		}
docs: Listen for change events on all radios