public void actionPerformed(ActionEvent e) {
				int opt = JOptionPane.YES_OPTION;
				if (BookmarkManager.sharedInstance().getBookmarks().containsKey(editor.getTitle())) {
					opt = JOptionPane.showConfirmDialog(Modeler.this, "There is already a bookmark with the name: " + editor.getTitle() + "\nWould you like to overwrite it?", "Bookmark name exists", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
				}
				if (opt == JOptionPane.YES_OPTION) {
					BookmarkManager.sharedInstance().getBookmarks().put(editor.getTitle() == null ? editor.getAddress() : editor.getTitle(), editor.getAddress());
					updateBookmarks();
				}
			}