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/2018-8/165336">《新课标导学》2018年人教版高一必修一课件+检测 </a>  下一篇：<a href="/News/2018-8/165338">2018-2019物理新导学同步选修3-1（人教版）课件+练习 </a> ';
}