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高考考前语法加油冲刺解析题 下一篇:2011广东化学高考研讨会课件复习策略与预测汇总 '; }