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/2013-1/61087">山东省聊城四中高二地理必修3课件 </a>  下一篇：<a href="/News/2013-1/61089">高三地理复习必备课件 </a> ';
}