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/2018-3/158261">2018届高三物理二轮复习计算题32分专练 </a>  下一篇：<a href="/News/2018-3/158263">2018届高三物理二轮复习选择题48分专练 </a> ';
}