function get_window_size() {
    if (window.innerHeight)
        return [window.innerHeight, window.innerWidth];
    else if (self.innerHeight)
        return [self.innerHeight, self.innerWidth];
  else if (document.documentElement && document.documentElement.clientHeight)
      return [document.documentElement.clientHeight,
              document.documentElement.clientWidth];
  else if (document.body)
      return [document.body.clientHeight, document.body.clientWidth];
}

function is_screen_media() {
    return (document.getElementsByTagName('link')[0].getAttribute('media').indexOf(
        'screen') != -1 || (document.styleSheets &&
        (document.styleSheets[0].media.mediaText.indexOf(
            'screen') != -1 || document.styleSheets[0].media.indexOf(
                'screen') != -1)));
}

function set_min_height() {
    if (!is_screen_media())
        return;
    var ws, wh, ww, h
    ws = get_window_size()
    wh = ws[0]
    ww = ws[1]

    h = metadiv.offsetHeight + 15
    metadiv.style.position = 'absolute'
    metadiv.style.bottom = '5px'
    metadiv.style.width = (bodydiv.offsetWidth - 22) + 'px'
    bodydiv.style.paddingBottom = h + 'px'

    h = wh - h - menudiv.offsetHeight - 145
    bodydiv.style.minHeight = h + 'px'
}

window.addEventListener('load', function(event){
    menudiv = document.getElementById('menu');
    bodydiv = document.getElementById('body');
    metadiv = document.getElementById('metadata');
    set_min_height();
}, false);