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:高考作文满分秘技(九):材料意象丰富篇 下一篇:“题意作文”审题三原则 '; }