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/2010-4/25268">《三角函数》知识梳理及测试 </a>  下一篇：<a href="/News/2010-4/25270">泉州五中2010届高三文综专项训练 </a> ';
}