// Shows a link to the next image in current directory
function showNextButton() {
global $database;

$gallery = rsgGalleryManager::get();

$galid=$gallery->id;
$ceiling = $gallery->itemCount();

// If the ID is set in rsgInstance, then get the current page from there
if( rsgInstance::getInt( 'id', 0 ) )
{
$curimage = $gallery->indexOfItem();
$nextlink = $curimage+1;
}
else // ID NOT SET, so get it from limitstart in address bar
{
$limitstart = mosGetParam ( $_REQUEST, 'limitstart', 0);
$nextlink = $limitstart+1;
}

// Check if last page. If so, start over at 1
if ($nextlink >= $ceiling)
{
$nextlink = 0;
}

echo '<a href="/index.php?option=com_rsgallery2&page=inline&gid='. $galid . '&limit=1&limitstart=' . $nextlink .'">Next Image</a>';
}