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/2017-3/141144">【加练半小时】2018年高考物理（全国通用）一轮微专题复习练 </a>  下一篇：<a href="/News/2017-3/141146">【一轮教案】2018版高考物理一轮复习讲义检测 </a> ';
}