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/2010-1/17493">备战高考数学知识点详析：概率 </a>  下一篇：<a href="/News/2010-1/17495">四川省绵阳中学09-10学年高一上学期期末统考模拟 </a> ';
}