TabPanel模拟

      <style type=text/css>
td {
    font-size: 12px;
    color: #000000;
    line-height: 150%;
    }
.sec1 {
    background-color: #EEEEEE;
    cursor: hand;
    color: #000000;
    border-left: 1px solid #FFFFFF;
    border-top: 1px solid #FFFFFF;
    border-right: 1px solid gray;
    border-bottom: 1px solid #FFFFFF
    }
.sec2 {
    background-color: #D4D0C8;
    cursor: hand;
    color: #000000;
    border-left: 1px solid #FFFFFF;
    border-top: 1px solid #FFFFFF;
    border-right: 1px solid gray;
    font-weight: bold;
    }
.main_tab {
    background-color: #D4D0C8;
    color: #000000;
    border-left:1px solid #FFFFFF;
    border-right: 1px solid gray;
    border-bottom: 1px solid gray;
    }
</style>
      <script language=javascript>
function secBoard(n)
{
  for(i=0;i<secTable.cells.length;i++)
    secTable.cells[i].className="sec1";
  secTable.cells[n].className="sec2";
  for(i=0;i<mainTable.tBodies.length;i++)
    mainTable.tBodies[i].style.display="none";
  mainTable.tBodies[n].style.display="block";
}
</script>
      <table border=0 cellspacing=0 cellpadding=0 width=549 id=secTable>
        <tr height=20 align=center>
          <td class=sec2 width=10% onclick="secBoard(0)">关于TBODY标记</td>
          <td class=sec1 width=10% onclick="secBoard(1)">关于cells集合</td>
          <td class=sec1 width=10% onclick="secBoard(2)">关于tBodies集合</td>
          <td class=sec1 width=10% onclick="secBoard(3)">关于display属性</td>
        </tr>
      </table>
      <table border=0 cellspacing=0 cellpadding=0 width=549 height=240 id=mainTable class=main_tab>
        <tbody style="display:block;">
        <tr>
          <td align=center valign=top> <br>
            <br>
            这里填加内容，略去。1 </td>
        </tr>
        </tbody> <tbody style="display:none;">
        <tr>
          <td align=center valign=top> <br>
            <br>
            这里填加内容，略去。2 </td>
        </tr>
        </tbody> <tbody style="display:none;">
        <tr>
          <td align=center valign=top> <br>
            <br>
            这里填加内容，略去。3 </td>
        </tr>
        </tbody> <tbody style="display:none;">
        <tr>
          <td align=center valign=top> <br>
            <br>
            这里填加内容，略去。4 </td>
        </tr>
        </tbody>
      </table>