<!DOCTYPE html>
<html>

  <head>
    <meta charset="utf-8" />
    <title></title>
    <script data-require="jquery" data-semver="3.0.0" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.js"></script>
    <script src="script.js"></script>
  </head>

  <body>
    <table id="tableExample" border="1">
      <tr>
        <th>Name</th>
        <th>Port</th>
        <th>KeyManager</th>
        <th>x</th>
        <th>y</th>
        <th>z</th>
        <th>w</th>
      </tr>
      <tr>
        <td>DSW1...</td>
        <td>8445</td>
        
        <td colspan="5" style="text-align: center;"><a class="health-check-button" href="#">health check</a></td>
        <td class="health-check-cell" style="display: none;">2</td>
        <td class="health-check-cell" style="display: none;">OK</td>
        <td class="health-check-cell" style="display: none;">3</td>
        <td class="health-check-cell" style="display: none;">OK</td>
        <td class="health-check-cell" style="display: none;">5</td>
      </tr>
      <tr>
        <td>DSW2...</td>
        <td>1000</td>
        
        <td colspan="5" style="text-align: center;"><a class="health-check-button" href="#">health check</a></td>
        <td class="health-check-cell" style="display: none;">1</td>
        <td class="health-check-cell" style="display: none;">NOK</td>
        <td class="health-check-cell" style="display: none;">A</td>
        <td class="health-check-cell" style="display: none;">OK</td>
        <td class="health-check-cell" style="display: none;">X</td>
      </tr>
    </table>
  </body>

</html>
$(function(){
  $("#tableExample").on("click", ".health-check-button", function(e){
    var elem = e.target;
    $(elem).closest("td").css("display", "none");
    $(elem).closest("tr").children(".health-check-cell").css("display", "table-cell");
  });
});