Method for obtaining radio objects in new and old versions of juqery

New version (currently 1.3.2):

$("[name='radio_name'][checked]").val(), or $("input[name='radio_name']:checked").val()

Old version:


$("[@name='radio_name'][checked]").val(), or $("[@name='radio_name']:checked").val()

The difference is that the old version has an additional @ symbol