function showPollWindow(vote_form, sendform)
{
    var width = 450;
    var height = 380;
    var left = (screen.width-width)/2;
    var top  = (screen.height-height)/2;

    features = 'height='+height+', width='+width+', left='+left+', top='+top+', location=no, menubar=no, personalbar=no, resizable=yes, scrollbars=no, status=no, titlebar=yes, toolbar=no';
    if (sendform) {
        vw = window.open('/poll.php', 'pollwindow', features);
        vote_form.target = 'pollwindow';
        vote_form.submit();
        vote_form.target = '_blank';
    }
    else {
        vw = window.open('/poll.php?showresults=1', 'pollwindow', features);
    }

    vw.focus();

    return false;
}