晕倒, 你所说的帧哪里是帧呀, 你说得是下拉框吧:
<form name=meizz>
<select name=s1 onchange="mm(this)">
  <option>name1</option>
  <option>name2</option>
  <option>name3</option>
  <option>name4</option>
  <option>name5</option>
</select><select name=s2 onchange="mm(this)">
  <option>job1</option>
  <option>job2</option>
  <option>job3</option>
  <option>job4</option>
  <option>job5</option>
</select><select name=s3 onchange="mm(this)">
  <option>address1</option>
  <option>address2</option>
  <option>address3</option>
  <option>address4</option>
  <option>address5</option>
  <option>address6</option>
  <option>address7</option>
  <option>address8</option>
  <option>address9</option>
</select>
</form><SCRIPT LANGUAGE="JavaScript">
function mm(e)
{
  try
  {
    with(document.meizz)
    {
      s1.selectedIndex = s2.selectedIndex = 
      s3.selectedIndex = e.selectedIndex;
    }
  }catch(e){}
}
</SCRIPT>