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/2019-8/176640">2019-2020学年高中生物浙科版选修一课件+文档 </a>  下一篇：<a href="/News/2019-8/176642">2019-2020版生物新指导人教版必修一课件+练习 </a> ';
}