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/2012-9/53084">高考物理复习指导：明确高考知识及能力要求 </a>  下一篇：<a href="/News/2012-9/53086">名师指导：怎样轻松应对高考物理？ </a> ';
}