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/2020-9/188848">2020-2021学年高中地理中图版必修3课堂演练 汇总 </a>  下一篇：<a href="/News/2020-9/188850">2020-2021学年物理新教材鲁科版第三册学案 汇总 </a> ';
}