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/2020-6/186458">2020-2021学年高二数学新教材苏教版必修5学案【新教材】汇总 </a>  下一篇：<a href="/News/2020-6/186460">2020-2021学年高二数学新教材苏教版选修2-1课件【新教材】汇总 </a> ';
}