function prev_video()
{ // currently no videos loaded, so report an error
    document.getElementById('video_caption').style.color = "#CCCCCC";
    document.getElementById('video_caption').innerHTML = "No previous videos";
}
function next_video()
{ // currently no videos loaded, so report an error
    document.getElementById('video_caption').style.color = "#CCCCCC";
    document.getElementById('video_caption').innerHTML = "No more videos";
}
function play_video()
{ // currently no videos loaded, so report an error
    document.getElementById('video_caption').style.color = "#CCCCCC";
    document.getElementById('video_caption').innerHTML = "Video not loaded yet";
}
function submitform()
{
    var page = document.sidebar_login.sel_menu.value;
    if (page == "online course")
    {	
        document.sidebar_login.action = "/onlinecourse/login.asp";
    }
    document.sidebar_login.submit();
}