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/2008-10/6844">资深阅卷老师传授理综高分技巧 </a>  下一篇：<a href="/News/2008-10/6846">理智驾驭青春期性冲动 </a> ';
}