function pop_video_window (width, height, url){
    var window_name = 'TenTenVideoWindow';
    var window_features = 'height='+height+',width='+width;
    var video_window;
    if (!video_window || video_window.closed)
        video_window = window.open(url, window_name, window_features);
    if (window.focus) video_window.focus();
    return false;
};