appending tbody much quicker then appending <tr>s without

appending tbody much quicker then appending <tr>s without


Given:
var newTr = '';
for (var a = 0; a < 1000; a++) {
newTr += ('<tr>test</tr>');
}
This:
$('#testTable').append(newTr);
is about 6 times slower (in Firefox 3.06 with jQuery 1.3.2) then:
$('#testTable').append('<tbody>' + newTr + '</tbody>');
I'm not sure if anything can be done about this, given that forcing a
tbody into tables without them doesn't seem like something one would
want to do in the append code, but thought I would point out a
potential area for speed increase.
Thanks,
Josh Powell