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/2018-4/160730">2018版化学《学案导学与随堂笔记》人教版必修一学案 </a>  下一篇：<a href="/News/2018-4/160732">四川省遂宁市2018届高三三诊考试 </a> ';
}