Add all feeds searched by inoreader at once

(function () {
    var sources = document.getElementsByClassName('discover_feed_subscribe_button');
    for (var source = null, _js_idx9 = 0; _js_idx9 < sources.length; _js_idx9 += 1) {
        source = sources[_js_idx9];
        if (source.onclick) {
            source.click();
        };
    };
})();