[jQuery] Chaining and each

[jQuery] Chaining and each

Kind of large to paste here. My script and resulting HTML can be found
at: http://jquery.pastebin.com/m3f98dd99
If you look towards the bottom you will see the following:
.parents('td.embedded td.latest')
.each(function(i) {
$(this)
.append(new_table)
.addClass('mod' + i);
});
I had to add the each because if I didn't my *new_table* was being
appended 9 times. With the each it's only appended once, but the
class is still added 9 times. Why?