[Javascript] Add row into Table

Javascript

var table_list;

function addRow()
{
    a = table_list.insertRow(1);
    a.insertCell(0).innerHTML="happy";
    a.insertCell(1).innerHTML="happy";
    a.insertCell(2).innerHTML="happy";
    a.insertCell(3).innerHTML="happy";


}

function init()
{
    table_list = document.getElementById("table");
}

HTML

<table id="table">
<thead>
      <tr>
          <th>Address</th>
          <th>Protocol</th>
          <th>Start</th>
          <th>End</th>
      </tr>
</thead>
<tbody>
</tbody>
</table>

Reference:

TableRow insertCell() Method