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/2012-11/57264">2013高考地理:答题要点(十七) </a>  下一篇：<a href="/News/2012-11/57266">2013高考地理答题技巧:太阳高度规律及计算 </a> ';
}