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/2016-12/136670">人教版高中历史必修一同步练习单选题 </a>  下一篇：<a href="/News/2016-12/136672">山西省右玉一中2016-2017学年高二上学期语文考练 </a> ';
}