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/2020-11/191789">2020-2021学年人教版英语选修8习题 </a>  下一篇：<a href="/News/2020-11/191791">2020-2021学年新教材人教版英语必修第三册习题 </a> ';
}