kMediaGbR / silverstripe-recaptcha

'use strict';

function domReady(fn) {

    var fns = [],

        loaded = domLoaded();

    domAddEventListener(fns, loaded);

    domHandleCallback(loaded, fns, fn);

}

function domLoaded() {

    return (document.documentElement.doScroll ? /^loaded|^c/ : /^loaded|^i|^c/).test(document.readyState);

}

function domAddEventListener(fns, loaded) {

    var listener;

    if (!loaded) {

        document.addEventListener('DOMContentLoaded', listener = function () {

            document.removeEventListener('DOMContentLoaded', listener);

            loaded = true;

            while (listener = fns.shift()) {

                listener();

            }

        })

    }

}

function domHandleCallback(loaded, fns, fn) {

    if (loaded) {

        setTimeout(fn, 0);

    } else {

        fns.push(fn);

    }

}