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/2012-8/51315">2013版步步高岳麓版历史大一轮复习教案：必修2 </a>  下一篇：<a href="/News/2012-8/51317">2013版步步高岳麓版历史大一轮复习教案：选修1 </a> ';
}