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/2010-3/21681">政治新人教版必修4同步备课大派送 </a>  下一篇：<a href="/News/2010-3/21683">2010高考数学选择填空专项训练 </a> ';
}