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:2011高考语文新课标复习训练 下一篇:《中原首辅》2012高三历史一轮 '; }