import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
else if (source == toUpper || source == toLower || source == toggleCase)
{
SequenceGroup sg = ap.av.getSelectionGroup();
else if (source == toUpper || source == toLower || source == toggleCase)
{
SequenceGroup sg = ap.av.getSelectionGroup();