var changeAllowed = true;

function fillVote(id, change) {

    if (changeAllowed) {
        for (i = 1; i <= id; i++) {
            document.getElementById('vote' + i).src = 'images/base/vote.png';
        }

        if (change == false)
            changeAllowed = false;

    } else return false;

}

function emptyVote() {

    if (changeAllowed) {
        for (i = 1; i <= 5; i++) {
            document.getElementById('vote' + i).src = 'images/base/vote-off.png';
        }
    }

}