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/2012-11/57053">2012高三物理复习课件（导与练福建）打包资料 </a>  下一篇：<a href="/News/2012-11/57055">高中生物教学素材汇总 </a> ';
}