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/2008-5/5502">高三“夜猫子”如何调整生物钟 </a>  下一篇：<a href="/News/2008-5/5504">[历史]2008高考历史冲刺全攻略 </a> ';
}