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/2020-8/187980">2020-2021学年化学苏教版必修1课件 </a>  下一篇：<a href="/News/2020-8/187982">内蒙古赤峰市2019-2020学年高二下学期期末联考 </a> ';
}