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/2018-3/159030">2017-2018学年同步备课高中化学苏教必修2同课异构课件 </a>  下一篇：<a href="/News/2018-3/159032">2017-2018学年同步备课一体资料之生物苏教必修2讲义 </a> ';
}