Function handler

2.0.3/Event.js:790–792

(event)

            // Attach a single capturing handler while someone wants focusin/focusout
            var attaches = 0,
                handler = function(event) {
                    jQuery.event.simulate(fix, event.target, jQuery.event.fix(event), true);
                };

            jQuery.event.special[fix] = {
                setup: function() {