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/2021-5/197973">2021-2022高三统考物理人教版一轮复习学案 </a>  下一篇：<a href="/News/2021-5/197976">2021-2022高三统考物理人教版一轮复习课件 </a> ';
}