private BasicComboBoxRenderer teacherRenderer()
	{
		BasicComboBoxRenderer renderer = 
		new BasicComboBoxRenderer(){
			public Component getListCellRendererComponent(
			        JList list, Object value, int index,
			        boolean isSelected, boolean cellHasFocus)
			    {
			        super.getListCellRendererComponent(list, value, index,
			            isSelected, cellHasFocus);

			        if (value != null)
			        {
			            Teacher item = (Teacher)value;
			            setText( item.getName() );
			        }

			        if (index == -1)
			        {
			        	//ComboBoxInterface item = (ComboBoxInterface)value;
			            //setText( "None" );
			        }


			        return this;
			    }
		};
		return renderer;
	}