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/2012-4/46636">2012高一历史教案 </a>  下一篇：<a href="/News/2012-4/46638">2012届高三语文知识复习《拓展精练》 </a> ';
}