code: function () {
  			
  			var i, length;
  			
  			for (i = 0, length = this.choicesList.length ; i < length ; i += 1) {
  				
  				if (this.choicesList[i].node.firstChild.checked) {
  					Dom.addClass(this.choicesList[i].node,"inputEx-selected");
  				} else {
  					Dom.removeClass(this.choicesList[i].node,"inputEx-selected");
  				}
  				
  			}
  		}
docs: Add an additional class to the currently selected inputEx-RadioField-choice