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/2009-4/11778">生物学科四月份新上竞赛试题 </a>  下一篇：<a href="/News/2009-4/11780">高一地理期中考试考前针对性训练 </a> ';
}