public List<?> doSelect(int recordStart, int sizePage, PageConfig pageConfig) {
		List<Answersheet> newlist=new ArrayList<Answersheet>();
		HttpServletRequest request=pageConfig.getRequest(); 
		List<Answersheet> list_answersheet=this.listAllAnswersheet(Long.valueOf(request.getParameter("sid")));
		for(int i=recordStart;i<recordStart+sizePage;i++){
		if(i<list_answersheet.size())
			newlist.add(list_answersheet.get(i));
		else
			break;
		 
		}
		return newlist;
	}