function showBox(extraContentId, linkToChangeId, imageToChangeId, imageToChangePath)
{
    if (extraContentId != null && linkToChangeId != null && imageToChangeId != null)
    {
        var extraContent = document.getElementById(extraContentId);
        var linkToChange = document.getElementById(linkToChangeId);
        var imageToChange = document.getElementById(imageToChangeId);

        if (extraContent.className == "Hidden") 
        {
            if (linkToChange.innerHTML == "Show news stories") 
            {
                linkToChange.innerHTML = "Hide news stories";
                imageToChange.src = imageToChangePath + 'Closed' + ".gif";
            }
            extraContent.className = "Show";
        }
        else
        {
            if (linkToChange.innerHTML == "Hide news stories") 
            {
                linkToChange.innerHTML = "Show news stories";
                imageToChange.src = imageToChangePath + "Open" + ".gif";
            }
            extraContent.className = "Hidden";
        }
    }
}