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:2009届高三二轮复习图表类主观试题精编专练 下一篇:三种武器助高考记叙文出奇制胜 '; }