I have group checkboxes and I like if this group have behaviour like radiobuttons with same name atribute.
Each checkbox has different name.
Only one can be
I had a similar problem. I couldn't use radio button because the same form had to display multiple choice checkboxes in some situations. I took your markup and wrote this small piece of jQuery:
$("span.multiGroup input").click(function() {
$("span.multiGroup input").attr('checked', false);
$(this).attr('checked', true);
});