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/2012-11/57331">高考理综题物理生物变化大 选修模块学失优势 </a>  下一篇：<a href="/News/2012-11/57333">2012高二英语精品教案：北师大版选修8 </a> ';
}