function showNewsItem(id)
{
    document.getElementById("news_items").style.display = 'none';
    document.getElementById("news_item"+id).style.display = 'block';
}

function showNewsItems(id)
{
    document.getElementById("news_items").style.display = 'block';
    document.getElementById("news_item"+id).style.display = 'none';
}