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/2018-9/166661">2018-2019学年数学新同步套餐苏教江苏专用版选修2-2课件+学案+练习 </a>  下一篇：<a href="/News/2018-9/166663">2018-2019物理新同步套餐粤教版选修3-5课件+学案+练习 </a> ';
}