if(arg == null) arg = jEdit.input(view,"clearmarker","lastmarker"); if(arg != null) buffer.removeMarker(arg);
buffer.removeMarker(evt.getActionCommand());
	public void actionPerformed(ActionEvent evt)	{		View view = getView(evt);		Buffer buffer = view.getBuffer();		String arg = evt.getActionCommand();		if(buffer.isReadOnly())			view.getToolkit().beep();		if(arg == null)			arg = jEdit.input(view,"clearmarker","lastmarker");		if(arg != null)			buffer.removeMarker(arg);	}