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Thread: Retrieve value of Javascript variable to HTML table cells

  1. #1
    Join Date
    May 2009

    Question Retrieve value of Javascript variable to HTML table cells

    Dear all,

    If I have a variable with a value in it. How do I RETRIEVE the value of it and insert it into my <TD> cell? I am using a table to input values to <CANVAS> tag to draw a graph based on the values in <TD>

    You can ignore the part when ZHTML is evaluating with <z?

    <HEAD><TITLE>Welcome to Version 2</TITLE>
    <!-- JavaScript HEAD AREA -->
    <script language="javascript" type="text/javascript">
    var rowValue; //Global variable to manipulate.
    <!-- For canvas -->
    <!-- <script type="text/javascript"> -->
    <script language="javascript" src="jsclass.js" type="text/javascript"></script>
    <!-- for canvas -->
    <!-- END OF ALL JAVASCRIPT codes up to this point-->
    <center><img SRC="homeWelcome.png"><br></center>
    <?z if ($rowValue== $rowValue) { ?>
    <script type="text/javascript">rowValue=25;</script>
    <?z } ?>
    <!-- <script type="text/javascript">alert(rowValue);</script> -->
    <table id="data" style="display:none";>
                  <th scope="col">X</th>
                  <th scope="col">Y</th>
                  <th scope="row">0</th>
                    <td><!-- Retrieve Javascript variable value here--></td>
                  <th scope="row">1</th> <!-- X-axis data -->
                    <td>25</td> <!-- Y-axis data -->
                  <th scope="row">2</th>
                  <th scope="row">3</th>
                  <th scope="row">4</th>
                  <th scope="row">5</th>
                  <th scope="row">6</th>
                  <th scope="row">7</th>
                  <th scope="row">8</th>
                  <th scope="row">9</th>
          <canvas id="graph">
          This is a test.. if this is shown, canvas tag ignored by browser
    <script type="text/javascript">
              var g = new Bluff.Line('graph', '500x500'); //name of canvas,400
              g.y_axis_increment = 5; 
    I had attached the graph that is produced by the above codings. The picture is called forum.JPG. -See below-

    Thanks so much in advance and for your precious time!

  2. #2
    Join Date
    Apr 2003
                  <th scope="row">0</th>
                    <td><script type="text/javascript">document.write(preDefinedValue);</script></td>
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