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/2017-4/141651">2018届高考生物总复习课件 </a>  下一篇：<a href="/News/2017-4/141653">2018高考语文（人教）大一轮复习 专题练案 </a> ';
}