function chkdiv(divid){
	var chkid=document.getElementById(divid);
	if(chkid != null){return true; }
	else {return false; }	
}
if (chkdiv('fy')){
	document.getElementById('fy').innerHTML='上一篇：<a href="/News/2018-2/157588">2017-2018学年高中语文人教版必修四课件 </a>  下一篇：<a href="/News/2018-2/157590">2018版高中语文人教版外国小说欣赏课件 </a> ';
}