public void stateChanged(ChangeEvent e){
		SpinnerModel hModel = HSelector.getModel();
		SpinnerModel wModel = WSelector.getModel();
		Integer hValue = this.getHSelectorValue();
		Integer wValue = this.getWSelectorValue();
		
		if (hModel instanceof SpinnerNumberModel || wModel instanceof SpinnerNumberModel){
			if (hValue <= 0 || hValue > 9999 || wValue <= 0 || wValue > 9999){
				JOptionPane.showMessageDialog(null, "Value must be between 0 and 9999", "Warning", JOptionPane.WARNING_MESSAGE);
			}
		}
	}