求一个 数据剔除的 正则表达式,望高手指教~
附上链接http://hi.baidu.com/孤单求学/blog/item/ba977360fc78f7c08cb10df2.html

原数据 

<tr class=listmb3>
 <td colspan=9>
  <table class=displayclass id=result1 onmouseover=hiddenmodify2(1) width=800>
  <tbody>
  <tr id=pr1>
  <td colspan=9>
  <div class=listmb3 style="height: 100%">
  <div style="float: left; width: 41px; height: 100%; text-align: center">mu
  <input id=linecode1 type=hidden value=mu>
  </div>
  <div style="float: left; width: 104px; height: 100%; text-align: center">can </div>
  <div id=aircodelist1 style="float: left; width: 120px; height: 100%; text-align: center" align=center>sha /pvg </div>
  <div style="float: left; overflow: hidden; width: 73px; height: 100%; text-align: center" align=center>所有航班 </div>
  <div id=seatlist1 style="float: left; overflow: hidden; width: 112px; height: 100%; text-align: center" align=center>f </div>
  <div id=commisionlist1 style="float: left; width: 44px; height: 100%; text-align: center" align=center>56% </div>
  <div id=policytypelist1 style="float: left; width: 83px; height: 100%; text-align: center">b2b <img src="/liantuo/images/jipiao/tszc.jpg"></img> </div>
  <div style="float: left; width: 44px; height: 100%; text-align: center">单程 </div>
  <div id=datelist1 style="padding-right: 3px; padding-left: 3px; float: left; padding-bottom: 3px; width: 80px; line-height: 12px; padding-top: 3px; height: 100%; text-align: center">2012-03-07 2012-03-31</div>
  <input id=ptype1 type=hidden value=2>
  <input id=prid_list1 type=hidden value=18719455>
  <div style="width: 80px; text-align: center">
  <div id=otheradd1>
  <input class=button style="width: 60px" onClick="javascript:window.open('/liantuo/manage/publishpolicy.in')" type=button value=添加政策 name=otheraddinput>
  </div>
  </div>
  </div>
  </td>
  </tr>
  <!--隐藏修改-->
  <tr id=update1 style="display: none" valign=top>
  <td id=ceshidiv style="float: left; text-align: center" align=middle colspan=9>
  <input id=agencyidshow1 type=hidden value=83539 name=agencyidshow1>
  <div style="float: left; overflow: hidden; width: 41px; text-align: center">mu</div>
  <div style="float: left; overflow: hidden; width: 104px; text-align: center">can </div>
  <div style="float: left; overflow: hidden; width: 120px; text-align: center">
  <textarea id=upaircodeinput1 onBlur="validatecode('1')"></textarea>
  <div id=upaircode1 style="float: left; width: 120px; height: 100%; text-align: center">sha /pvg </div>
  </div>
  <div style="float: left; overflow: hidden; width: 73px; text-align: center">所有航班 </div>
  <div style="float: left; overflow: hidden; width: 112px; text-align: center">舱位限制
  <input id=beforeseat1 type=hidden value=f name=beforeseat1>
  <div id=showseats1 name="showseats1">f</div>
  <