jquery调用javascript方法

<table id="TableA">
<tr>
<td>Old top row</td>
</tr>
</table>
<script type="text/javascript">

function addRow(tableID) {
  // Get a reference to the table
  var tableRef = document.getElementById(tableID);

  // Insert a row in the table at row index 0
  var newRow   = tableRef.insertRow(0);

  // Insert a cell in the row at index 0
  var newCell  = newRow.insertCell(0);

  // Append a text node to the cell
  var newText  = document.createTextNode('New top row');
  newCell.appendChild(newText);
}

// Call addRow() with the ID of a table
addRow('TableA');

</script>