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/2019-11/179689">2020高考化学江苏专用提分大二轮复习课件+讲义 </a>  下一篇：<a href="/News/2019-11/179691">2020高考物理通用版三轮冲刺题型练辑 </a> ';
}