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/2012-11/58143">化石揭示恐龙死前曾遭受巨大痛苦 </a>  下一篇：<a href="/News/2012-11/58145">高考地理复习基础知识之分界线2 </a> ';
}