String[] returnCodes= {YES, NO, ALL, CANCEL};
String[] returnCodes= {YES, ALL, NO, CANCEL};
	public String queryOverwrite(String file) {		String[] returnCodes= {YES, NO, ALL, CANCEL};		int returnVal= openDialog(getViewer().getControl(), file);		return returnVal < 0 ? CANCEL : returnCodes[returnVal];	}	