text: //取得表格行的 inner HTML
  <html>
  <head>
  <script type="text/javascript">
  function getInnerHTML()
    {
    //alert(document.getElementById("th1").innerHTML);
  document.getElementById("th1").innerHTML ="leepandddd";
    $("#th1").html('leepand');
    }
  </script>
  </head>
  <body>
  
  <table border="1">
  <tr id="tr1">
  <th id="th1">Firstname</th>
  <th>Lastname</th>
  </tr>
  <tr id="tr2">
  <td>Peter</td>
  <td>Griffin</td>
  </tr>
  </table>
  <br />
  <input type="button" onclick="getInnerHTML()" value="Alert innerHTML of table row" />
  
  </body>
  </html>
  
  