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/2013-1/61383">2013届高考物理一轮复习课件（沪科版选修3-2) </a>  下一篇：<a href="/News/2013-1/61385">2013版高二数学人教B版选修2-1课件 </a> ';
}