public void onWarningEmitted(String s) {
if (_vp.isErrorsOn())
JOptionPane.showMessageDialog(_vp, s, "VARNA Warning", JOptionPane.ERROR_MESSAGE);
}
/**
* Open an error message dialog with the exception message
*
* @param e1 The <code>Exception</code>
*/
public void errorDialog(Exception e1) {
if (_vp.isErrorsOn())
JOptionPane.showMessageDialog(_vp, e1.getMessage(), "VARNA Error", JOptionPane.ERROR_MESSAGE);
}