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:Ken Wilson(外研社教材主编之一)讲座视频:Turning Passive Students into Active Learners(54份) 下一篇:2012江苏高考数学填空题“培优练习”(11—20) '; }