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/2013-5/66730">河南省洛阳市回民中学高一化学课件 </a>  下一篇：<a href="/News/2013-5/66732">青海省西宁五中片区2013届高三大联考 </a> ';
}