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/2016-10/133671">高中生物人教版必修一课件 </a>  下一篇：<a href="/News/2016-10/133673">2017最新高三英语总复习（专题攻略）之时态语态 </a> ';
}