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/2021-4/196550">2022高三统考历史（通史版）一轮参考课件 </a>  下一篇：<a href="/News/2021-4/196552">2022高三统考历史人教版一轮参考课件 </a> ';
}