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/2017-10/149887">高一数学人教A版必修1训练+教案+单元检测汇总 </a>  下一篇：<a href="/News/2017-10/149889">2018年高考历史人民版一轮复习配套教师用书 </a> ';
}