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/2013-4/64632">人教版选修5高二化学章节验收试题 </a>  下一篇：<a href="/News/2013-4/64634">【2013山东一模】山东省2013届高三一模语文试题汇总 </a> ';
}