Jquery Check parent checkboxes in nested ul li

Question

I have a script that will check and uncheck all children checkboxes in a nested list. I am now trying to get it so I can check a low level checkbox and it will check all the

Answer 1

This should do it:

$('input[type=checkbox]').click(function () {
    $(this).parent().find('li input[type=checkbox]').prop('checked', $(this).is(':checked'));
    var sibs = false;
    $(this).closest('ul').children('li').each(function () {
        if($('input[type=checkbox]', this).is(':checked')) sibs=true;
    })
    $(this).parents('ul').prev().prop('checked', sibs);
});

jsFiddle example

Latest update handles up and down the hierarchy, and siblings.