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/2010-5/25644">2010高考化学热点专题突破 </a>  下一篇：<a href="/News/2010-5/25646">河南省河大附中09-10学年高二下学期期中考试 </a> ';
}