polling with jquery

polling.js

var polling,
    pollingResponse = true;
polling = setInterval(
    function () {
        if (pollingResponse) {
            console.log('polling');
            pollingResponse = false;
            $.ajax({
                url: 'test.php',
                type: 'POST',
                data: {
                    // data
                },
                timeout: 5000,
                success: function(data) {
                    if (data.status === 'ok') {
                        // do something
                        clearInterval(polling);
                    } else {
                        // do something
                    }
                    pollingResponse = true;
                },
                error: function(data) {
                    // do something
                    clearInterval(polling);
                    pollingResponse = true;
                }
            });
        }
    },
    5000
);

skip3minPolling = setTimeout(function() {
    clearInterval(polling);
    // show notification to view
}, 180000);