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/2019-9/177618">2019-2020学年新教材人教版生物必修1同步课件+测试 </a>  下一篇：<a href="/News/2019-9/177620">2020版政治新教材人教必修一同步学案+练习 </a> ';
}