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/2015-8/112544">高考历史试题汇编 </a>  下一篇：<a href="/News/2015-8/112546">2016版《3年高考2年模拟课标化学》题组练习 </a> ';
}