document.writeln(" <select name='aaal'  style='width:120px'  class='p9'>")
document.writeln(" <option value='' selected>All</option>")

document.writeln(" <option value='11'>生物试剂</option>")

document.writeln(" <option value='22'>生化及分子生物学试剂</option>")

document.writeln(" <option value='23'>耗材</option>")

document.writeln(" <option value='24'>离心管</option>")

document.writeln(" <option value='25'>试剂盒</option>")

document.writeln(" <option value='26'>化学试剂</option>")

document.writeln(" <option value='29'>滤膜</option>")

document.writeln(" <option value='30'>移液器系列</option>")

document.writeln(" <option value='31'>专用仪器及配套用品</option>")

document.writeln(" <option value='32'>实验室配套器材</option>")

document.writeln(" <option value='35'>化学及生化试剂 </option>")

document.writeln(" <option value='36'>其它</option>")

document.writeln(" </select>")