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/2012-12/59240">吉林省长白山一高2013学年高二物理选修3-1第二章同步检测 </a>  下一篇：<a href="/News/2012-12/59242">生物苏教版必修3课件 </a> ';
}