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HTML

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<form action="assets.php" method="post">
  <button type="button" id="add">Add Row</button>
  <button type="button" id="delete">Remove Row</button>
  <table id="myassettable">
    <thead>
      <tr>
        <th>Asset Type</th>
        <th>Manufacturer</th>
        <th>Serial #</th>
        <th>MAC Address</th>
        <th>Description</th>
        <th>Site</th>
        <th>Location</th>
      </tr>
    </thead>
    <tbody>
      <tr class="removable" data-row="0">
        <td>
          <select name="asset[0][type]" id="type-0">
            <option>---</option>
            <option>Type Option</option>
          </select>
        </td>
        <td>
          <select class="manuf_name" name="asset[0][manuf]" id="manuf-0">
            <option>---</option>
            <option>
              Manuf Option
            </option>
          </select>
        </td>
        <td>
          <input type="text" placeholder="Serial #" name="asset[0][serial_num]" id="serial-0" />
        </td>
        <td>
          <input type="text" placeholder="Mac Address" name="asset[0][mac_address]" id="mac-0" />
        </td>
        <td>
          <input type="text" placeholder="Name or Description" name="asset[0][description]" id="desc-0">
        </td>
        <td>
          <select id="site-0" class="chooseSite" name="asset[0][site]">
            <option>---</option>
            <option>
              Site Option
            </option>
          </select>
        </td>
        <td>
          <input type="text" placeholder="e.g Level 3 Utility Room" name="asset[0][location]" id="loc-0">
        </td>
        <td>
          <select id="contact-0" name="asset[0][contact]">
          </select>
        </td>
      </tr>
    </tbody>
  </table>
  <input type="submit" value="Submit">
  <input type="hidden" name="submitted" value="TRUE" />
</form>
​

JavaScript

Module

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function cloneRow(n) {
  if (n - 1 < 0) return false;
  var html = "";
  html += "<tr class='removable' data-row=" + n + ">";
  html += "<td><select name='asset[" + n + "][type]' id='type-" + n + "'>";
  html += $("#type-" + (n - 1)).html();
  html += "<select></td>";
  html += "<td><select name='asset[" + n + "][manuf]' id='manuf-" + n + "'>";
  html += $("#manuf-" + (n - 1)).html();
  html += "<select></td>";
  html += "<td><input type='text' placeholder='Serial #' name='asset[" + n + "][serial_num]' id='serial-" + n + "' /></td>";
  html += "<td><input type='text' placeholder='MAC Address' name='asset[" + n + "][mac_address]' id='mac-" + n + "' /></td>";
  html += "<td><input type='text' placeholder='Name or Desc.' name='asset[" + n + "][description]' id='desc-" + n + "' /></td>";
  html += "<td><select name='asset[" + n + "][site]' class='chooseSite' id='site-" + n + "'>";
  html += $("#site-" + (n - 1)).html();
  html += "<select></td>";
  html += "<td><input type='text' placeholder='E.G. Level 3 Utility Room' name='asset[" + n + "][location]' id='loc-" + n + "' /></td>";
  html += "<td><select name='asset[" + n + "][contact]' id='contact-" + n + "'><select></td>";
  html += "</tr>";
  return html;
}
​
$(document).ready(function() {
  $("#add").click(function() {
    var newRow = $('#myassettable tbody tr').length;
    console.log("Adding new Row with ID: " + newRow);
    $('#myassettable tbody').append(cloneRow(newRow));
    console.log("There are now " + $('#myassettable tbody tr').length + " rows.");
    return false;
  });
​
  $("#delete").click(function() {
    if ($('#myassettable tbody tr').length == 1) {
      alert('This is the only one');
    } else {
      if (confirm("Are you sure you wish to delete the last row?")) {
        $('#myassettable tbody tr:last').remove();
      }
    }
    return false;
  });
​
  $('#myassettable tbody').on('change', '.chooseSite', function(e) {
    var n = $(this).parents("tr").data("row");
    console.log($(this).attr("id"), "changed. Updating contact-" + n);
    var response = "<option value='1'>John Smith</option>";
    $("#contact-" + n).html(response);
  });
});
​

CSS

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​

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