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/2018-10/167475">2018-2019学年人教版高中物理选修3-4课件+检测 </a>  下一篇：<a href="/News/2018-10/167477">2018-2019学年人教版化学选修三导学精品课件+检测 </a> ';
}