Automatically upvote after X minutes

autoupvote.js

function setTitle(voteAt, minutesAgo, originalTitle) {
    var voteIn = voteAt - minutesAgo;

    var unit = (voteIn === 1 ? 'minute' : 'minutes');

    var newTitle = '<Votes in ' + voteIn + ' ' + unit + '> | ' + originalTitle;

    if (document.title !== newTitle) {
        document.title = newTitle;
    }
};

function run(voteAt, originalTitle, voted) {
    if (!voteAt) {
        return;
    }

    voteAt = parseInt(voteAt);

    if (isNaN(voteAt)) {
        return;
    }

    if (document.title.indexOf(originalTitle) === -1) {
        return;
    }

    var timeParts = document.getElementsByTagName('time')[0].innerHTML.split(' ');

    if (timeParts[1].indexOf('minute') !== -1) {
        var minutesAgo = parseInt(timeParts[0]);

        if (minutesAgo >= voteAt) {
            if (!voted) {
                document.querySelector('.PostFull__footer [title="Upvote"]').click();
                voted = true;
            };
            
            document.title = '<Upvoted!> | ' + originalTitle;
        } else {
            setTitle(voteAt, minutesAgo, originalTitle);
        }
    } else {
        setTitle(voteAt, 0, originalTitle);
    }

    setTimeout(function() {
        run(voteAt, originalTitle, voted);
    }, 1000);
};

if (!document.querySelector('.PostFull__footer [title="Upvote"]')) {
    alert('Are you on steemit.com? In that case the bookmarklet may have stopped working. Please contact @lantto for an updated version.');
} else {
    run(
        parseInt(prompt('Enter at which minute mark it should upvote (e.g. 10, 15, 30 etc):')), 
        document.title,
        false
    );
}