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/2017-12/152961">2018年高中物理优生辅导真题集训 </a>  下一篇：<a href="/News/2017-12/152963">2018高考数学（文）二轮复习课时规范练 </a> ';
}