errorDetected = false;
} catch(InvalidThresholdException ite){
JOptionPane.showMessageDialog(null, Messages.getString("QuantAna.Message.InvalidThreshold"));
tf.requestFocus();
tf.selectAll();
errorDetected = true;
} catch(NumberFormatException nfe) {
JOptionPane.showMessageDialog(null, Messages.getString("QuantAna.Message.NumberFormatErrorDouble"));
tf.requestFocus();
tf.selectAll();