public Component getTableCellRendererComponent(JTable table,
			Object value, boolean isSelected, boolean hasFocus, int row,
			int column) {
		//KnownWord k = session.getKnownWordAt(column, row);
		if (session.getKnownWordAt(column, row).known == false) {
			this.setBackground(Color.RED);
		} else {
			this.setBackground(Color.WHITE);
		}
		if (isSelected) {
			this.setBorder(selectedBorder);
			this.setBackground(Color.BLUE);
		} else {
			this.setBorder(unselectedBorder);
		}		
		this.setText((String)value);
		
		return this;
	}