使用JScript提取HTML表格选中行数值并传递给VBScript求助

我刚接触HTML和JS，目前在为实验室计算机开发相关功能。我从Stack Overflow的两个已有问答整合了代码，但未能达到预期效果。

需求说明 #

让用户从表格的多行数据中进行选择，选中行的数据会在页面下方展示供用户确认，最终需要将这些参数传递给为Biomek液体处理平台编写的VBScript主程序。

待传递的变量是主程序的全局变量，但主程序无法识别行选中操作带来的变量变更。无论我如何调试，要么完全无法获取变量，要么拿到的是字符串格式（我需要数值格式），要么只能为变量赋值字符串名而非对应的实际数值。

存在问题的代码 #

<html>
  <head>
  <style>
      table, th, td {
          border: 1px solid black;
          border-collapse: collapse;
      }
  </style> 
  <script language="javascript" type="text/javascript">

  function showRow(row)
      {
      var x=row.cells;
     document.getElementById("Volume1").value = x[0].innerHTML;
  document.getElementById("Volume2").value = x[1].innerHTML;
  }
  function ChangeColor(row, highLight)
  {
  if (highLight)
  {
    row.style.backgroundColor = '#dcfac9';
  }
  else
  {
    row.style.backgroundColor = 'white';
  }
  }
  </script>
  </head>
  <body>
  <FORM METHOD="GET" ACTION="http://localhost">
  <table id="myTable" cellspacing="3"
      <thead>
          <tr>
        <th>Volume 1</th>
        <th>Volume 2</th>
      </tr>
      </thead> 
      <tbody> 
          <tr onclick="javascript:showRow(this);"
              onmouseover="javascript:ChangeColor(this, true);" 
              onmouseout="javascript:ChangeColor(this, false);" >
             <td>88.4</td>
             <td>100</td>
          </tr>
           <tr onclick="javascript:showRow(this);"
              onmouseover="javascript:ChangeColor(this, true);" 
              onmouseout="javascript:ChangeColor(this, false);" > 
             <td>22.8</td>
             <td>44</td>
          </tr> 
           <tr onclick="javascript:showRow(this);"
              onmouseover="javascript:ChangeColor(this, true);" 
              onmouseout="javascript:ChangeColor(this, false);" > 
             <td>73.2</td>
             <td>125</td>
          </tr> 
           <tr onclick="javascript:showRow(this);"
              onmouseover="javascript:ChangeColor(this, true);" 
              onmouseout="javascript:ChangeColor(this, false);" > 
            <td>13.64</td>
             <td>17</td>
          </tr> 
      </tbody>
  </table>
  <br>
  <br>
  Volume 1 is:<input type="text" id="Volume1" />
  <br>
  Volume 2 is:<input type="text" id="Volume2" />
  <br>
  <br><br><br>
  <INPUT TYPE="submit" NAME="submitButton__" VALUE="CONTINUE" />
  </FORM>
  </body>
  </html>

此前成功实现的参考代码 #

此前我已经完成过类似功能，下方代码片段中，主程序可以正常读取user_NumberSamples、user_Replicates、user_DiluteSample三个变量的值，但当前使用场景存在差异：

<HTML>
<HEAD>
<SCRIPT LANGUAGE="VBScript">
<!-- ***** Put scripts for handling page elements here -->
</SCRIPT>
<BODY BGCOLOR="BlanchedAlmond">
<FORM METHOD="GET" ACTION="http://localhost">
<h1 style="text-align:center;">TEST METHOD</h1>
<TABLE BOARDER=1>
 <TR>
   <P><h3 style="text-align:center;">Please enter all of the required information</h3></TD>
 </P>
 <BR>
<p>
</p>
 <TR>
    <TR><strong>Enter the number of samples being tested:            </strong></TR>
    <TR><INPUT TYPE=text  NAME="user_NumberSamples"  SIZE=2 VALUE="48">
 </TR>
<br>
<br>
<p>
  <TR><strong>Please select the number of REPLICTES:          </strong><TR>
  <select name="user_Replicates" size="1">
   <option>3</option>
  <option>2</option>
  <option>1</option>
  </select></BR>
 <TR>
</TABLE>
<br>
<tr><strong>Perform a pre-dilution of Samples 1:10?:</strong></tr>
  <input type="radio" id="False" name="user_DiluteSample" value="False" checked>
  <label for="False">False</label>
  <input type="radio" id="True" name="user_DiluteSample" value="True">
  <label for="True">True</label><br>
<p>NOTE: Diluting samples will make all replicates come from the same dilution plate, i.e. technical replicates<p>
<INPUT TYPE="submit" NAME="submitButton__" VALUE="Click To Continue">
</FORM>
</BODY>
</HTML>

我已经花费大量时间调试但仍未解决问题，特此向各位专家求助，感谢！

内容的提问来源于stack exchange，提问作者Brad Meyer