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/2019-9/177080">2020鲁教版高考地理总复习（山东专用）讲义+作业 </a>  下一篇：<a href="/News/2019-9/177082">2020版化学鲁科版高考新素养总复习课件+讲义 </a> ';
}