gistfile1.txt

    $('.typeahead').typeahead({
         
    });

    var groupFocusTimer;
    $('.group').on('change', function (e) {
        if (e.target.value == "") {
            return;
        }

        var _this = this;
        groupFocusTimer = window.setTimeout( function(){
            $.ajax({
                type: 'POST',
                data: e.target.value,
                dataType: 'json',
                url: 'Machines/UpadateGroupForMachine?id=' + $(this).attr('data-id') + '&group=' + e.target.value,
                success: function (result) {
                    $(_this).replaceWith(e.target.value);
                }
            });
        }, 500);
    }).on('focus', function(){
        window.clearTimeout( groupFocusTimer )
    })