Automatically poke your friends back!

autopoker.js

var autoPokerIndex = null;
var autoPoke = function() {
    // LOL, do you even DOM bro?
    document.evaluate('//*[text()="Poke Back"]', document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE).snapshotItem(0).click();
}

var startAutoPoker = function() {
    autoPokerIndex = setInterval(autoPoke, 2000);
}

var stopAutoPoker = function() {
    if (autoPokerIndex) {
        clearInterval(autoPokerIndex);
        autoPokerIndex = null;
    }
    return !!autoPokerIndex;
}