Append rows from other table
HTML
<table id="tableName" style="border:1px solid green">
<tr>
<td>One</td>
</tr>
</table>
<input type="button" id="copy" value="copy" />
<table id="tableRow" style="border:1px solid red">
<tr>
<td>Two</td>
</tr>
<tr>
<td>Three</td>
</tr>
<tr>
<td>Four</td>
</tr>
</table>
JavaScript
$("#copy").click(function() {
$("#tableRow tr").each(function() {
$('#tableName').append($(this).clone());
});
});