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/2012-9/53348">2013高考物理一轮复习易错剖析课件 </a>  下一篇：<a href="/News/2012-9/53350">三维设计2013届高考历史（人教版）一轮复习演练 </a> ';
}