Chayns confirm dialog box

chayns-confirm.js

(function (module, Chayns, undefined) {

    'use strict';

    module.confirm = function (question, yesCallback, noCallback) {

        question = question || '';
        yesCallback = yesCallback || Function.prototype;
        noCallback = noCallback || Function.prototype;

        var buttons = [
            new Chayns.PopUpButton('Ja', yesCallback),
            new Chayns.PopUpButton('Nein', noCallback)
        ];

        Chayns.ShowPopUp('<p>' + question + '</p>', "", buttons, Function.prototype);

    };

})(window.TappProject, Chayns);