/**
 * Vote-Buttons markieren
 */
function vote(prefix, n) {
    for (i = 1; i <= 5; i++) {
        img = window.document.images[prefix + i];
        if (img && (typeof(vote_o) == 'object') && (typeof(vote_n) == 'object')) {
            if (i <= n) {
                window.document.images[prefix + i].src = vote_o.src;
            } else {
                window.document.images[prefix + i].src = vote_n.src;
            }
        }
    }
}