code: function() {
  			
  			var value, position, choice;
  			
  			if (this.el.selectedIndex !== 0) {
  				
  				// Get the selector value
  				value = inputEx.MultiSelectField.superclass.getValue.call(this);
  				
  				position = this.getChoicePosition({ value : value });
  				choice = this.choicesList[position];
  				
  				this.ddlist.addItem({ value: value, label: choice.label });
  				
  				// hide choice that has just been selected (+ select first choice)
  				this.hideChoice({ position : position });
  				this.el.selectedIndex = 0;
  				
  				this.fireUpdatedEvt();
  				
  			}
  		}
docs: Add an item to the list when the select changed