code: @Override
  	protected Button newButton(final String id)
  	{
  		return new Button(id)
  		{
  			/**
  			 * The serialVersionUID.
  			 */
  			private static final long serialVersionUID = 1L;
  
  			/**
  			 * {@inheritDoc}
  			 */
  			@Override
  			public void onSubmit()
  			{
  				getAction().execute();
  			}
  		};
  	}
docs: Factory method for creating a new {@link Button}. This method is invoked in the constructor
  from the derived classes and can be overridden so users can provide their own version of a
  Button.
  
  @param id
  the wicket id
  @return the Button