function render_comment(date,name,comment) {
    // comment
    var new_comment = new Element('p', {'class': 'comment'}).update('on ' + date + ', <b>' + name + '</b> said:<br/>' + comment);
    $('div_comments').insertBefore(new_comment,$('comment_form'));
    
    // link text
    $('show_comments').innerHTML = 'comments (' + $$('p.comment').length + ')';
    
    return true;
}