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/2017-8/147788">《备课优选》2017秋高一数学人教A版必修1教案汇总 </a>  下一篇：<a href="/News/2017-8/147790">《备课优选》2017秋高一物理鲁科版必修1课件+教案汇总 </a> ';
}