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/2009-11/14892">2010届高三化学一轮复习精品资源大集合 </a>  下一篇：<a href="/News/2009-11/14894">广东省执信中学09-10学年高二上学期期中考试 </a> ';
}