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/2018-8/166117">2018年高中英语人教版必修一精品讲义+同步练习 </a>  下一篇：<a href="/News/2018-8/166119">2018-2019学年高中物理人教版必修一课件+检测 </a> ';
}