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/2010-7/29000">高考复习组成细胞的分子课件 </a>  下一篇：<a href="/News/2010-7/29002">高一地理暑期作业 </a> ';
}