jquery select all checkboxes

I know I’m revisiting an old thread, but this page shows up as one of the top results in Google when this question is asked. I am revisiting this because in jQuery 1.6 and above, prop() should be used for “checked” status instead of attr() with true or false being passed. More info here.

For example, Henrick’s code should now be:

$(function () {
    $('#selectall').toggle(
        function() {
            $('#friendslist .tf').prop('checked', true);
        },
        function() {
            $('#friendslist .tf').prop('checked', false);
        }
    );
});