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/2008-4/5240">重庆八中 </a>  下一篇：<a href="/News/2008-4/5242">[物理]考前60天物理最大限度提分策略 </a> ';
}